From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 16:29:10 +0200
Subject: Adding upstream version 86.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../elements/after-same-line-gen-computed-names.js |  77 ++++++
 .../after-same-line-gen-computed-symbol-names.js   |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 .../after-same-line-gen-literal-names-asi.js       |  62 +++++
 .../elements/after-same-line-gen-literal-names.js  |  75 ++++++
 .../after-same-line-gen-private-field-usage.js     |  47 ++++
 ...er-same-line-gen-private-method-getter-usage.js |  47 ++++
 .../after-same-line-gen-private-method-usage.js    |  47 ++++
 .../elements/after-same-line-gen-private-names.js  |  69 ++++++
 ...ame-line-gen-rs-field-identifier-initializer.js |  84 +++++++
 .../after-same-line-gen-rs-field-identifier.js     |  91 +++++++
 .../after-same-line-gen-rs-private-getter-alt.js   | 126 ++++++++++
 .../after-same-line-gen-rs-private-getter.js       | 126 ++++++++++
 .../after-same-line-gen-rs-private-method-alt.js   | 125 ++++++++++
 .../after-same-line-gen-rs-private-method.js       | 125 ++++++++++
 .../after-same-line-gen-rs-private-setter-alt.js   | 125 ++++++++++
 .../after-same-line-gen-rs-private-setter.js       | 125 ++++++++++
 ...-same-line-gen-rs-privatename-identifier-alt.js | 107 +++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...ne-gen-rs-privatename-identifier-initializer.js | 101 ++++++++
 ...fter-same-line-gen-rs-privatename-identifier.js | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...ine-gen-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...me-line-gen-rs-static-privatename-identifier.js | 108 +++++++++
 .../after-same-line-gen-static-private-fields.js   |  69 ++++++
 ...-line-gen-static-private-methods-with-fields.js |  86 +++++++
 .../after-same-line-gen-static-private-methods.js  |  73 ++++++
 .../after-same-line-gen-string-literal-names.js    |  82 +++++++
 .../after-same-line-method-computed-names.js       |  77 ++++++
 ...after-same-line-method-computed-symbol-names.js |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 .../after-same-line-method-literal-names-asi.js    |  62 +++++
 .../after-same-line-method-literal-names.js        |  75 ++++++
 .../after-same-line-method-private-field-usage.js  |  47 ++++
 ...same-line-method-private-method-getter-usage.js |  47 ++++
 .../after-same-line-method-private-method-usage.js |  47 ++++
 .../after-same-line-method-private-names.js        |  69 ++++++
 ...-line-method-rs-field-identifier-initializer.js |  84 +++++++
 .../after-same-line-method-rs-field-identifier.js  |  91 +++++++
 ...after-same-line-method-rs-private-getter-alt.js | 126 ++++++++++
 .../after-same-line-method-rs-private-getter.js    | 126 ++++++++++
 ...after-same-line-method-rs-private-method-alt.js | 125 ++++++++++
 .../after-same-line-method-rs-private-method.js    | 125 ++++++++++
 ...after-same-line-method-rs-private-setter-alt.js | 125 ++++++++++
 .../after-same-line-method-rs-private-setter.js    | 125 ++++++++++
 ...me-line-method-rs-privatename-identifier-alt.js | 107 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...method-rs-privatename-identifier-initializer.js | 101 ++++++++
 ...r-same-line-method-rs-privatename-identifier.js | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...line-method-rs-static-privatename-identifier.js | 108 +++++++++
 ...after-same-line-method-static-private-fields.js |  69 ++++++
 ...ne-method-static-private-methods-with-fields.js |  86 +++++++
 ...fter-same-line-method-static-private-methods.js |  73 ++++++
 .../after-same-line-method-string-literal-names.js |  82 +++++++
 ...er-same-line-static-async-gen-computed-names.js |  90 +++++++
 ...-line-static-async-gen-computed-symbol-names.js |  85 +++++++
 ...privatename-identifier-semantics-stringvalue.js | 119 ++++++++++
 ...same-line-static-async-gen-literal-names-asi.js |  75 ++++++
 ...ter-same-line-static-async-gen-literal-names.js |  88 +++++++
 ...me-line-static-async-gen-private-field-usage.js |  59 +++++
 ...static-async-gen-private-method-getter-usage.js |  59 +++++
 ...e-line-static-async-gen-private-method-usage.js |  59 +++++
 ...ter-same-line-static-async-gen-private-names.js |  81 +++++++
 ...ic-async-gen-rs-field-identifier-initializer.js |  97 ++++++++
 ...me-line-static-async-gen-rs-field-identifier.js | 104 ++++++++
 ...-line-static-async-gen-rs-private-getter-alt.js | 138 +++++++++++
 ...same-line-static-async-gen-rs-private-getter.js | 138 +++++++++++
 ...-line-static-async-gen-rs-private-method-alt.js | 137 +++++++++++
 ...same-line-static-async-gen-rs-private-method.js | 137 +++++++++++
 ...-line-static-async-gen-rs-private-setter-alt.js | 137 +++++++++++
 ...same-line-static-async-gen-rs-private-setter.js | 137 +++++++++++
 ...atic-async-gen-rs-privatename-identifier-alt.js | 119 ++++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 113 +++++++++
 ...nc-gen-rs-privatename-identifier-initializer.js | 113 +++++++++
 ...e-static-async-gen-rs-privatename-identifier.js | 119 ++++++++++
 ...-generator-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...sync-generator-method-privatename-identifier.js | 146 ++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...s-static-async-method-privatename-identifier.js | 146 ++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 134 +++++++++++
 ...atic-generator-method-privatename-identifier.js | 135 +++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 132 +++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 132 +++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 120 ++++++++++
 ...ync-gen-rs-static-privatename-identifier-alt.js | 120 ++++++++++
 ...s-static-privatename-identifier-by-classname.js | 120 ++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 114 +++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 114 +++++++++
 ...rs-static-privatename-identifier-initializer.js | 114 +++++++++
 ...c-async-gen-rs-static-privatename-identifier.js | 120 ++++++++++
 ...-line-static-async-gen-static-private-fields.js |  81 +++++++
 ...async-gen-static-private-methods-with-fields.js |  98 ++++++++
 ...line-static-async-gen-static-private-methods.js |  85 +++++++
 ...e-line-static-async-gen-string-literal-names.js |  95 ++++++++
 ...same-line-static-async-method-computed-names.js |  89 +++++++
 ...ne-static-async-method-computed-symbol-names.js |  84 +++++++
 ...privatename-identifier-semantics-stringvalue.js | 118 +++++++++
 ...e-line-static-async-method-literal-names-asi.js |  74 ++++++
 ...-same-line-static-async-method-literal-names.js |  87 +++++++
 ...line-static-async-method-private-field-usage.js |  58 +++++
 ...tic-async-method-private-method-getter-usage.js |  58 +++++
 ...ine-static-async-method-private-method-usage.js |  58 +++++
 ...-same-line-static-async-method-private-names.js |  80 +++++++
 ...async-method-rs-field-identifier-initializer.js |  96 ++++++++
 ...line-static-async-method-rs-field-identifier.js | 103 ++++++++
 ...ne-static-async-method-rs-private-getter-alt.js | 137 +++++++++++
 ...e-line-static-async-method-rs-private-getter.js | 137 +++++++++++
 ...ne-static-async-method-rs-private-method-alt.js | 136 +++++++++++
 ...e-line-static-async-method-rs-private-method.js | 136 +++++++++++
 ...ne-static-async-method-rs-private-setter-alt.js | 136 +++++++++++
 ...e-line-static-async-method-rs-private-setter.js | 136 +++++++++++
 ...c-async-method-rs-privatename-identifier-alt.js | 118 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 112 +++++++++
 ...method-rs-privatename-identifier-initializer.js | 112 +++++++++
 ...tatic-async-method-rs-privatename-identifier.js | 118 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 144 +++++++++++
 ...sync-generator-method-privatename-identifier.js | 145 ++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 144 +++++++++++
 ...s-static-async-method-privatename-identifier.js | 145 ++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 133 +++++++++++
 ...atic-generator-method-privatename-identifier.js | 134 +++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 131 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 131 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 119 ++++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 119 ++++++++++
 ...s-static-privatename-identifier-by-classname.js | 119 ++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 113 +++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 113 +++++++++
 ...rs-static-privatename-identifier-initializer.js | 113 +++++++++
 ...sync-method-rs-static-privatename-identifier.js | 119 ++++++++++
 ...ne-static-async-method-static-private-fields.js |  80 +++++++
 ...nc-method-static-private-methods-with-fields.js |  97 ++++++++
 ...e-static-async-method-static-private-methods.js |  84 +++++++
 ...ine-static-async-method-string-literal-names.js |  94 ++++++++
 .../after-same-line-static-gen-computed-names.js   |  77 ++++++
 ...r-same-line-static-gen-computed-symbol-names.js |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 ...after-same-line-static-gen-literal-names-asi.js |  62 +++++
 .../after-same-line-static-gen-literal-names.js    |  75 ++++++
 ...ter-same-line-static-gen-private-field-usage.js |  47 ++++
 ...-line-static-gen-private-method-getter-usage.js |  47 ++++
 ...er-same-line-static-gen-private-method-usage.js |  47 ++++
 .../after-same-line-static-gen-private-names.js    |  69 ++++++
 ...e-static-gen-rs-field-identifier-initializer.js |  84 +++++++
 ...ter-same-line-static-gen-rs-field-identifier.js |  91 +++++++
 ...r-same-line-static-gen-rs-private-getter-alt.js | 126 ++++++++++
 ...after-same-line-static-gen-rs-private-getter.js | 126 ++++++++++
 ...r-same-line-static-gen-rs-private-method-alt.js | 125 ++++++++++
 ...after-same-line-static-gen-rs-private-method.js | 125 ++++++++++
 ...r-same-line-static-gen-rs-private-setter-alt.js | 125 ++++++++++
 ...after-same-line-static-gen-rs-private-setter.js | 125 ++++++++++
 ...ine-static-gen-rs-privatename-identifier-alt.js | 107 +++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...ic-gen-rs-privatename-identifier-initializer.js | 101 ++++++++
 ...me-line-static-gen-rs-privatename-identifier.js | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...tic-gen-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...-static-gen-rs-static-privatename-identifier.js | 108 +++++++++
 ...r-same-line-static-gen-static-private-fields.js |  69 ++++++
 ...tatic-gen-static-private-methods-with-fields.js |  86 +++++++
 ...-same-line-static-gen-static-private-methods.js |  73 ++++++
 ...er-same-line-static-gen-string-literal-names.js |  82 +++++++
 ...after-same-line-static-method-computed-names.js |  77 ++++++
 ...ame-line-static-method-computed-symbol-names.js |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 ...er-same-line-static-method-literal-names-asi.js |  62 +++++
 .../after-same-line-static-method-literal-names.js |  75 ++++++
 ...-same-line-static-method-private-field-usage.js |  47 ++++
 ...ne-static-method-private-method-getter-usage.js |  47 ++++
 ...same-line-static-method-private-method-usage.js |  47 ++++
 .../after-same-line-static-method-private-names.js |  69 ++++++
 ...tatic-method-rs-field-identifier-initializer.js |  84 +++++++
 ...-same-line-static-method-rs-field-identifier.js |  91 +++++++
 ...ame-line-static-method-rs-private-getter-alt.js | 126 ++++++++++
 ...er-same-line-static-method-rs-private-getter.js | 126 ++++++++++
 ...ame-line-static-method-rs-private-method-alt.js | 125 ++++++++++
 ...er-same-line-static-method-rs-private-method.js | 125 ++++++++++
 ...ame-line-static-method-rs-private-setter-alt.js | 125 ++++++++++
 ...er-same-line-static-method-rs-private-setter.js | 125 ++++++++++
 ...-static-method-rs-privatename-identifier-alt.js | 107 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...method-rs-privatename-identifier-initializer.js | 101 ++++++++
 ...line-static-method-rs-privatename-identifier.js | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...atic-method-rs-static-privatename-identifier.js | 108 +++++++++
 ...ame-line-static-method-static-private-fields.js |  69 ++++++
 ...ic-method-static-private-methods-with-fields.js |  86 +++++++
 ...me-line-static-method-static-private-methods.js |  73 ++++++
 ...same-line-static-method-string-literal-names.js |  82 +++++++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  36 +++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  33 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  38 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  31 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  38 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  36 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  33 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  36 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  29 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  36 +++
 ...rrow-body-direct-eval-err-contains-arguments.js |  38 +++
 ...rrow-body-direct-eval-err-contains-newtarget.js |  36 +++
 ...ow-body-indirect-eval-err-contains-newtarget.js |  35 +++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  40 ++++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  37 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  39 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  32 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  39 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  37 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  34 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  37 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  30 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  37 +++
 ...y-private-direct-eval-err-contains-arguments.js |  39 +++
 ...y-private-direct-eval-err-contains-newtarget.js |  40 ++++
 ...private-indirect-eval-err-contains-newtarget.js |  36 +++
 .../arrow-fnc-init-err-contains-arguments.js       |  35 +++
 .../elements/arrow-fnc-init-err-contains-super.js  |  28 +++
 .../await-as-binding-identifier-escaped.js         |  37 +++
 .../await-as-binding-identifier.js                 |  37 +++
 .../await-as-identifier-reference-escaped.js       |  37 +++
 .../await-as-identifier-reference.js               |  37 +++
 .../await-as-label-identifier-escaped.js           |  37 +++
 .../await-as-label-identifier.js                   |  37 +++
 .../async-gen-private-method-static/browser.js     |   0
 .../async-gen-private-method-static/shell.js       |   0
 .../yield-as-binding-identifier-escaped.js         |  37 +++
 .../yield-as-binding-identifier.js                 |  37 +++
 .../yield-as-identifier-reference-escaped.js       |  37 +++
 .../yield-as-identifier-reference.js               |  37 +++
 .../yield-as-label-identifier-escaped.js           |  37 +++
 .../yield-as-label-identifier.js                   |  37 +++
 .../yield-identifier-spread-strict-strict.js       |  64 +++++
 .../yield-identifier-strict-strict.js              |  55 +++++
 .../yield-promise-reject-next-catch.js             |  60 +++++
 ...mise-reject-next-for-await-of-async-iterator.js |  66 ++++++
 ...omise-reject-next-for-await-of-sync-iterator.js |  65 +++++
 ...romise-reject-next-yield-star-async-iterator.js |  64 +++++
 ...promise-reject-next-yield-star-sync-iterator.js |  63 +++++
 .../yield-promise-reject-next.js                   |  60 +++++
 .../yield-spread-arr-multiple.js                   |  66 ++++++
 .../yield-spread-arr-single.js                     |  65 +++++
 .../yield-spread-obj.js                            |  68 ++++++
 .../yield-star-async-next.js                       | 235 ++++++++++++++++++
 .../yield-star-async-return.js                     | 251 ++++++++++++++++++++
 .../yield-star-async-throw.js                      | 259 ++++++++++++++++++++
 .../yield-star-expr-abrupt.js                      |  70 ++++++
 .../yield-star-getiter-async-get-abrupt.js         |  90 +++++++
 ...tar-getiter-async-not-callable-boolean-throw.js |  89 +++++++
 ...star-getiter-async-not-callable-number-throw.js |  89 +++++++
 ...star-getiter-async-not-callable-object-throw.js |  89 +++++++
 ...star-getiter-async-not-callable-string-throw.js |  89 +++++++
 ...star-getiter-async-not-callable-symbol-throw.js |  89 +++++++
 ...ield-star-getiter-async-null-sync-get-abrupt.js |  95 ++++++++
 .../yield-star-getiter-async-returns-abrupt.js     |  86 +++++++
 ...eld-star-getiter-async-returns-boolean-throw.js |  86 +++++++
 .../yield-star-getiter-async-returns-null-throw.js |  86 +++++++
 ...ield-star-getiter-async-returns-number-throw.js |  86 +++++++
 ...ield-star-getiter-async-returns-string-throw.js |  86 +++++++
 ...ield-star-getiter-async-returns-symbol-throw.js |  86 +++++++
 ...d-star-getiter-async-returns-undefined-throw.js |  86 +++++++
 ...star-getiter-async-undefined-sync-get-abrupt.js |  95 ++++++++
 .../yield-star-getiter-sync-get-abrupt.js          |  89 +++++++
 ...star-getiter-sync-not-callable-boolean-throw.js |  88 +++++++
 ...-star-getiter-sync-not-callable-number-throw.js |  88 +++++++
 ...-star-getiter-sync-not-callable-object-throw.js |  88 +++++++
 ...-star-getiter-sync-not-callable-string-throw.js |  88 +++++++
 ...-star-getiter-sync-not-callable-symbol-throw.js |  88 +++++++
 .../yield-star-getiter-sync-returns-abrupt.js      |  83 +++++++
 ...ield-star-getiter-sync-returns-boolean-throw.js |  88 +++++++
 .../yield-star-getiter-sync-returns-null-throw.js  |  88 +++++++
 ...yield-star-getiter-sync-returns-number-throw.js |  88 +++++++
 ...yield-star-getiter-sync-returns-string-throw.js |  88 +++++++
 ...yield-star-getiter-sync-returns-symbol-throw.js |  88 +++++++
 ...ld-star-getiter-sync-returns-undefined-throw.js |  88 +++++++
 .../yield-star-next-call-done-get-abrupt.js        |  89 +++++++
 .../yield-star-next-call-returns-abrupt.js         |  81 +++++++
 .../yield-star-next-call-value-get-abrupt.js       |  91 +++++++
 .../yield-star-next-get-abrupt.js                  |  81 +++++++
 .../yield-star-next-non-object-ignores-then.js     | 101 ++++++++
 .../yield-star-next-not-callable-boolean-throw.js  |  78 ++++++
 .../yield-star-next-not-callable-null-throw.js     |  78 ++++++
 .../yield-star-next-not-callable-number-throw.js   |  78 ++++++
 .../yield-star-next-not-callable-object-throw.js   |  78 ++++++
 .../yield-star-next-not-callable-string-throw.js   |  78 ++++++
 .../yield-star-next-not-callable-symbol-throw.js   |  78 ++++++
 ...yield-star-next-not-callable-undefined-throw.js |  78 ++++++
 .../yield-star-next-then-get-abrupt.js             | 105 ++++++++
 ...ext-then-non-callable-boolean-fulfillpromise.js |  99 ++++++++
 ...r-next-then-non-callable-null-fulfillpromise.js |  99 ++++++++
 ...next-then-non-callable-number-fulfillpromise.js |  99 ++++++++
 ...next-then-non-callable-object-fulfillpromise.js |  99 ++++++++
 ...next-then-non-callable-string-fulfillpromise.js |  99 ++++++++
 ...next-then-non-callable-symbol-fulfillpromise.js |  99 ++++++++
 ...t-then-non-callable-undefined-fulfillpromise.js |  99 ++++++++
 .../yield-star-next-then-returns-abrupt.js         | 105 ++++++++
 .../yield-star-sync-next.js                        | 238 +++++++++++++++++++
 .../yield-star-sync-return.js                      | 213 +++++++++++++++++
 .../yield-star-sync-throw.js                       | 219 +++++++++++++++++
 .../await-as-binding-identifier-escaped.js         |  37 +++
 .../await-as-binding-identifier.js                 |  37 +++
 .../await-as-identifier-reference-escaped.js       |  37 +++
 .../await-as-identifier-reference.js               |  37 +++
 .../await-as-label-identifier-escaped.js           |  37 +++
 .../await-as-label-identifier.js                   |  37 +++
 .../elements/async-gen-private-method/browser.js   |   0
 .../elements/async-gen-private-method/shell.js     |   0
 .../yield-as-binding-identifier-escaped.js         |  37 +++
 .../yield-as-binding-identifier.js                 |  37 +++
 .../yield-as-identifier-reference-escaped.js       |  37 +++
 .../yield-as-identifier-reference.js               |  37 +++
 .../yield-as-label-identifier-escaped.js           |  37 +++
 .../yield-as-label-identifier.js                   |  37 +++
 .../yield-identifier-spread-strict-strict.js       |  68 ++++++
 .../yield-identifier-strict-strict.js              |  59 +++++
 .../yield-promise-reject-next-catch.js             |  64 +++++
 ...mise-reject-next-for-await-of-async-iterator.js |  70 ++++++
 ...omise-reject-next-for-await-of-sync-iterator.js |  69 ++++++
 ...romise-reject-next-yield-star-async-iterator.js |  68 ++++++
 ...promise-reject-next-yield-star-sync-iterator.js |  67 ++++++
 .../yield-promise-reject-next.js                   |  64 +++++
 .../yield-spread-arr-multiple.js                   |  70 ++++++
 .../yield-spread-arr-single.js                     |  69 ++++++
 .../async-gen-private-method/yield-spread-obj.js   |  72 ++++++
 .../yield-star-async-next.js                       | 239 +++++++++++++++++++
 .../yield-star-async-return.js                     | 255 ++++++++++++++++++++
 .../yield-star-async-throw.js                      | 263 +++++++++++++++++++++
 .../yield-star-expr-abrupt.js                      |  74 ++++++
 .../yield-star-getiter-async-get-abrupt.js         |  94 ++++++++
 ...tar-getiter-async-not-callable-boolean-throw.js |  93 ++++++++
 ...star-getiter-async-not-callable-number-throw.js |  93 ++++++++
 ...star-getiter-async-not-callable-object-throw.js |  93 ++++++++
 ...star-getiter-async-not-callable-string-throw.js |  93 ++++++++
 ...star-getiter-async-not-callable-symbol-throw.js |  93 ++++++++
 ...ield-star-getiter-async-null-sync-get-abrupt.js |  99 ++++++++
 .../yield-star-getiter-async-returns-abrupt.js     |  90 +++++++
 ...eld-star-getiter-async-returns-boolean-throw.js |  90 +++++++
 .../yield-star-getiter-async-returns-null-throw.js |  90 +++++++
 ...ield-star-getiter-async-returns-number-throw.js |  90 +++++++
 ...ield-star-getiter-async-returns-string-throw.js |  90 +++++++
 ...ield-star-getiter-async-returns-symbol-throw.js |  90 +++++++
 ...d-star-getiter-async-returns-undefined-throw.js |  90 +++++++
 ...star-getiter-async-undefined-sync-get-abrupt.js |  99 ++++++++
 .../yield-star-getiter-sync-get-abrupt.js          |  93 ++++++++
 ...star-getiter-sync-not-callable-boolean-throw.js |  92 +++++++
 ...-star-getiter-sync-not-callable-number-throw.js |  92 +++++++
 ...-star-getiter-sync-not-callable-object-throw.js |  92 +++++++
 ...-star-getiter-sync-not-callable-string-throw.js |  92 +++++++
 ...-star-getiter-sync-not-callable-symbol-throw.js |  92 +++++++
 .../yield-star-getiter-sync-returns-abrupt.js      |  87 +++++++
 ...ield-star-getiter-sync-returns-boolean-throw.js |  92 +++++++
 .../yield-star-getiter-sync-returns-null-throw.js  |  92 +++++++
 ...yield-star-getiter-sync-returns-number-throw.js |  92 +++++++
 ...yield-star-getiter-sync-returns-string-throw.js |  92 +++++++
 ...yield-star-getiter-sync-returns-symbol-throw.js |  92 +++++++
 ...ld-star-getiter-sync-returns-undefined-throw.js |  92 +++++++
 .../yield-star-next-call-done-get-abrupt.js        |  93 ++++++++
 .../yield-star-next-call-returns-abrupt.js         |  85 +++++++
 .../yield-star-next-call-value-get-abrupt.js       |  95 ++++++++
 .../yield-star-next-get-abrupt.js                  |  85 +++++++
 .../yield-star-next-non-object-ignores-then.js     | 105 ++++++++
 .../yield-star-next-not-callable-boolean-throw.js  |  82 +++++++
 .../yield-star-next-not-callable-null-throw.js     |  82 +++++++
 .../yield-star-next-not-callable-number-throw.js   |  82 +++++++
 .../yield-star-next-not-callable-object-throw.js   |  82 +++++++
 .../yield-star-next-not-callable-string-throw.js   |  82 +++++++
 .../yield-star-next-not-callable-symbol-throw.js   |  82 +++++++
 ...yield-star-next-not-callable-undefined-throw.js |  82 +++++++
 .../yield-star-next-then-get-abrupt.js             | 109 +++++++++
 ...ext-then-non-callable-boolean-fulfillpromise.js | 103 ++++++++
 ...r-next-then-non-callable-null-fulfillpromise.js | 103 ++++++++
 ...next-then-non-callable-number-fulfillpromise.js | 103 ++++++++
 ...next-then-non-callable-object-fulfillpromise.js | 103 ++++++++
 ...next-then-non-callable-string-fulfillpromise.js | 103 ++++++++
 ...next-then-non-callable-symbol-fulfillpromise.js | 103 ++++++++
 ...t-then-non-callable-undefined-fulfillpromise.js | 103 ++++++++
 .../yield-star-next-then-returns-abrupt.js         | 109 +++++++++
 .../yield-star-sync-next.js                        | 242 +++++++++++++++++++
 .../yield-star-sync-return.js                      | 217 +++++++++++++++++
 .../yield-star-sync-throw.js                       | 223 +++++++++++++++++
 .../await-as-binding-identifier-escaped.js         |  39 +++
 .../await-as-binding-identifier.js                 |  39 +++
 .../await-as-identifier-reference-escaped.js       |  39 +++
 .../await-as-identifier-reference.js               |  39 +++
 .../await-as-label-identifier-escaped.js           |  39 +++
 .../await-as-label-identifier.js                   |  39 +++
 .../async-private-method-static/browser.js         |   0
 ...arrow-returns-arguments-from-parent-function.js |  44 ++++
 .../returns-async-arrow-returns-newtarget.js       |  43 ++++
 .../returns-async-arrow.js                         |  43 ++++
 ...function-returns-arguments-from-own-function.js |  44 ++++
 .../returns-async-function-returns-newtarget.js    |  43 ++++
 .../returns-async-function.js                      |  43 ++++
 .../elements/async-private-method-static/shell.js  |   0
 .../await-as-binding-identifier-escaped.js         |  39 +++
 .../await-as-binding-identifier.js                 |  39 +++
 .../await-as-identifier-reference-escaped.js       |  39 +++
 .../await-as-identifier-reference.js               |  39 +++
 .../await-as-label-identifier-escaped.js           |  39 +++
 .../await-as-label-identifier.js                   |  39 +++
 .../class/elements/async-private-method/browser.js |   0
 ...arrow-returns-arguments-from-parent-function.js |  45 ++++
 .../returns-async-arrow-returns-newtarget.js       |  44 ++++
 .../async-private-method/returns-async-arrow.js    |  44 ++++
 ...function-returns-arguments-from-own-function.js |  45 ++++
 .../returns-async-function-returns-newtarget.js    |  44 ++++
 .../async-private-method/returns-async-function.js |  44 ++++
 .../class/elements/async-private-method/shell.js   |   0
 .../language/expressions/class/elements/browser.js |   0
 .../class-name-static-initializer-anonymous.js     |  28 +++
 .../elements/class-name-static-initializer-decl.js |  28 +++
 ...class-name-static-initializer-default-export.js |  30 +++
 .../elements/class-name-static-initializer-expr.js |  28 +++
 .../comp-name-init-err-contains-arguments.js       |  36 +++
 .../elements/comp-name-init-err-contains-super.js  |  29 +++
 .../elements/computed-name-toprimitive-symbol.js   | 105 ++++++++
 .../class/elements/computed-name-toprimitive.js    | 102 ++++++++
 .../elements/ctor-called-after-fields-init.js      |  35 +++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  36 +++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  33 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  38 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  31 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  38 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  38 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  35 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  38 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  31 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  38 +++
 .../elements/direct-eval-err-contains-arguments.js |  38 +++
 .../elements/direct-eval-err-contains-newtarget.js |  36 +++
 .../equality-init-err-contains-arguments.js        |  35 +++
 .../elements/equality-init-err-contains-super.js   |  28 +++
 .../class/elements/evaluation-error/browser.js     |   0
 .../computed-name-referenceerror.js                |  58 +++++
 .../computed-name-toprimitive-err.js               |  60 +++++
 ...omputed-name-toprimitive-returns-noncallable.js |  59 +++++
 .../computed-name-toprimitive-returns-nonobject.js |  58 +++++
 .../evaluation-error/computed-name-tostring-err.js |  61 +++++
 .../evaluation-error/computed-name-valueof-err.js  |  61 +++++
 .../class/elements/evaluation-error/shell.js       |   0
 .../class/elements/field-declaration.js            |  99 ++++++++
 .../elements/fields-anonymous-function-length.js   |  49 ++++
 .../expressions/class/elements/fields-asi-1.js     |  21 ++
 .../expressions/class/elements/fields-asi-2.js     |  19 ++
 .../expressions/class/elements/fields-asi-3.js     |  19 ++
 .../expressions/class/elements/fields-asi-4.js     |  19 ++
 .../expressions/class/elements/fields-asi-5.js     |  30 +++
 .../class/elements/fields-asi-same-line-1.js       |  18 ++
 .../class/elements/fields-asi-same-line-2.js       |  18 ++
 ...elds-computed-name-static-propname-prototype.js |  34 +++
 .../elements/fields-duplicate-privatenames.js      |  25 ++
 .../fields-literal-name-propname-constructor.js    |  30 +++
 ...lds-literal-name-static-propname-constructor.js |  30 +++
 ...ields-literal-name-static-propname-prototype.js |  30 +++
 ...ple-definitions-static-private-methods-proxy.js |  42 ++++
 .../elements/fields-run-once-on-double-super.js    |  43 ++++
 .../fields-string-name-propname-constructor.js     |  31 +++
 ...elds-string-name-static-propname-constructor.js |  31 +++
 ...fields-string-name-static-propname-prototype.js |  31 +++
 .../elements/gen-private-method-static/browser.js  |   0
 .../elements/gen-private-method-static/shell.js    |   0
 .../yield-as-binding-identifier-escaped.js         |  36 +++
 .../yield-as-binding-identifier.js                 |  36 +++
 .../yield-as-identifier-reference-escaped.js       |  36 +++
 .../yield-as-identifier-reference.js               |  36 +++
 .../yield-as-label-identifier-escaped.js           |  36 +++
 .../yield-as-label-identifier.js                   |  36 +++
 .../yield-identifier-spread-strict-strict.js       |  63 +++++
 .../yield-identifier-strict-strict.js              |  54 +++++
 .../yield-spread-arr-multiple.js                   |  62 +++++
 .../yield-spread-arr-single.js                     |  64 +++++
 .../gen-private-method-static/yield-spread-obj.js  |  67 ++++++
 .../class/elements/gen-private-method/browser.js   |   0
 .../class/elements/gen-private-method/shell.js     |   0
 .../yield-as-binding-identifier-escaped.js         |  36 +++
 .../yield-as-binding-identifier.js                 |  36 +++
 .../yield-as-identifier-reference-escaped.js       |  36 +++
 .../yield-as-identifier-reference.js               |  36 +++
 .../yield-as-label-identifier-escaped.js           |  36 +++
 .../yield-as-label-identifier.js                   |  36 +++
 .../yield-identifier-spread-strict-strict.js       |  67 ++++++
 .../yield-identifier-strict-strict.js              |  58 +++++
 .../yield-spread-arr-multiple.js                   |  66 ++++++
 .../gen-private-method/yield-spread-arr-single.js  |  68 ++++++
 .../gen-private-method/yield-spread-obj.js         |  71 ++++++
 .../grammar-private-field-optional-chaining.js     |  43 ++++
 .../elements/indirect-eval-contains-arguments.js   |  24 ++
 .../indirect-eval-err-contains-newtarget.js        |  37 +++
 .../class/elements/init-err-evaluation.js          |  38 +++
 .../elements/init-value-defined-after-class.js     |  50 ++++
 .../class/elements/init-value-incremental.js       |  70 ++++++
 ...tercalated-static-non-static-computed-fields.js |  78 ++++++
 .../literal-name-init-err-contains-arguments.js    |  35 +++
 .../literal-name-init-err-contains-super.js        |  28 +++
 .../multiple-definitions-computed-names.js         | 113 +++++++++
 .../multiple-definitions-computed-symbol-names.js  | 108 +++++++++
 ...privatename-identifier-semantics-stringvalue.js | 143 +++++++++++
 .../multiple-definitions-literal-names-asi.js      |  98 ++++++++
 .../elements/multiple-definitions-literal-names.js | 111 +++++++++
 .../multiple-definitions-private-field-usage.js    |  83 +++++++
 ...iple-definitions-private-method-getter-usage.js |  83 +++++++
 .../multiple-definitions-private-method-usage.js   |  83 +++++++
 .../elements/multiple-definitions-private-names.js | 105 ++++++++
 ...-definitions-rs-field-identifier-initializer.js | 120 ++++++++++
 .../multiple-definitions-rs-field-identifier.js    | 127 ++++++++++
 .../multiple-definitions-rs-private-getter-alt.js  | 162 +++++++++++++
 .../multiple-definitions-rs-private-getter.js      | 162 +++++++++++++
 .../multiple-definitions-rs-private-method-alt.js  | 161 +++++++++++++
 .../multiple-definitions-rs-private-method.js      | 161 +++++++++++++
 .../multiple-definitions-rs-private-setter-alt.js  | 161 +++++++++++++
 .../multiple-definitions-rs-private-setter.js      | 161 +++++++++++++
 ...le-definitions-rs-privatename-identifier-alt.js | 143 +++++++++++
 ...ns-rs-privatename-identifier-initializer-alt.js | 137 +++++++++++
 ...itions-rs-privatename-identifier-initializer.js | 137 +++++++++++
 ...ltiple-definitions-rs-privatename-identifier.js | 143 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 167 +++++++++++++
 ...sync-generator-method-privatename-identifier.js | 168 +++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 167 +++++++++++++
 ...s-static-async-method-privatename-identifier.js | 168 +++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 158 +++++++++++++
 ...atic-generator-method-privatename-identifier.js | 159 +++++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 156 ++++++++++++
 ...ions-rs-static-method-privatename-identifier.js | 156 ++++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 144 +++++++++++
 ...nitions-rs-static-privatename-identifier-alt.js | 144 +++++++++++
 ...s-static-privatename-identifier-by-classname.js | 144 +++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 138 +++++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 138 +++++++++++
 ...rs-static-privatename-identifier-initializer.js | 138 +++++++++++
 ...definitions-rs-static-privatename-identifier.js | 144 +++++++++++
 .../multiple-definitions-static-private-fields.js  | 105 ++++++++
 ...finitions-static-private-methods-with-fields.js | 122 ++++++++++
 .../multiple-definitions-static-private-methods.js | 109 +++++++++
 .../multiple-definitions-string-literal-names.js   | 118 +++++++++
 .../multiple-stacked-definitions-computed-names.js |  91 +++++++
 ...le-stacked-definitions-computed-symbol-names.js |  86 +++++++
 ...privatename-identifier-semantics-stringvalue.js | 121 ++++++++++
 ...ltiple-stacked-definitions-literal-names-asi.js |  76 ++++++
 .../multiple-stacked-definitions-literal-names.js  |  89 +++++++
 ...iple-stacked-definitions-private-field-usage.js |  61 +++++
 ...cked-definitions-private-method-getter-usage.js |  61 +++++
 ...ple-stacked-definitions-private-method-usage.js |  61 +++++
 .../multiple-stacked-definitions-private-names.js  |  83 +++++++
 ...-definitions-rs-field-identifier-initializer.js |  98 ++++++++
 ...iple-stacked-definitions-rs-field-identifier.js | 105 ++++++++
 ...le-stacked-definitions-rs-private-getter-alt.js | 140 +++++++++++
 ...ltiple-stacked-definitions-rs-private-getter.js | 140 +++++++++++
 ...le-stacked-definitions-rs-private-method-alt.js | 139 +++++++++++
 ...ltiple-stacked-definitions-rs-private-method.js | 139 +++++++++++
 ...le-stacked-definitions-rs-private-setter-alt.js | 139 +++++++++++
 ...ltiple-stacked-definitions-rs-private-setter.js | 139 +++++++++++
 ...ed-definitions-rs-privatename-identifier-alt.js | 121 ++++++++++
 ...ns-rs-privatename-identifier-initializer-alt.js | 115 +++++++++
 ...itions-rs-privatename-identifier-initializer.js | 115 +++++++++
 ...tacked-definitions-rs-privatename-identifier.js | 121 ++++++++++
 ...-generator-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...sync-generator-method-privatename-identifier.js | 146 ++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...s-static-async-method-privatename-identifier.js | 146 ++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 136 +++++++++++
 ...atic-generator-method-privatename-identifier.js | 137 +++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 134 +++++++++++
 ...ions-rs-static-method-privatename-identifier.js | 134 +++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 122 ++++++++++
 ...nitions-rs-static-privatename-identifier-alt.js | 122 ++++++++++
 ...s-static-privatename-identifier-by-classname.js | 122 ++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 116 +++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 116 +++++++++
 ...rs-static-privatename-identifier-initializer.js | 116 +++++++++
 ...definitions-rs-static-privatename-identifier.js | 122 ++++++++++
 ...le-stacked-definitions-static-private-fields.js |  83 +++++++
 ...finitions-static-private-methods-with-fields.js | 100 ++++++++
 ...e-stacked-definitions-static-private-methods.js |  87 +++++++
 ...ple-stacked-definitions-string-literal-names.js |  96 ++++++++
 ...nested-arrow-fnc-init-err-contains-arguments.js |  37 +++
 .../nested-arrow-fnc-init-err-contains-super.js    |  30 +++
 ...nested-comp-name-init-err-contains-arguments.js |  35 +++
 .../nested-comp-name-init-err-contains-super.js    |  28 +++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  36 +++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  33 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  38 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  31 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  38 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  38 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  35 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  38 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  31 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  38 +++
 .../nested-direct-eval-err-contains-arguments.js   |  41 ++++
 .../nested-direct-eval-err-contains-newtarget.js   |  36 +++
 .../nested-equality-init-err-contains-arguments.js |  34 +++
 .../nested-equality-init-err-contains-super.js     |  27 +++
 .../nested-indirect-eval-contains-arguments.js     |  23 ++
 .../nested-indirect-eval-err-contains-newtarget.js |  37 +++
 ...ted-literal-name-init-err-contains-arguments.js |  34 +++
 .../nested-literal-name-init-err-contains-super.js |  27 +++
 ...rivate-arrow-fnc-init-err-contains-arguments.js |  37 +++
 ...ed-private-arrow-fnc-init-err-contains-super.js |  30 +++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  37 +++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  34 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  39 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  32 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  39 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  39 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  36 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  39 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  32 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  39 +++
 ...d-private-direct-eval-err-contains-arguments.js |  42 ++++
 ...d-private-direct-eval-err-contains-newtarget.js |  37 +++
 ...ted-private-indirect-eval-contains-arguments.js |  27 +++
 ...private-indirect-eval-err-contains-newtarget.js |  38 +++
 ...ate-literal-name-init-err-contains-arguments.js |  34 +++
 ...private-literal-name-init-err-contains-super.js |  27 +++
 ...-private-ternary-init-err-contains-arguments.js |  34 +++
 ...sted-private-ternary-init-err-contains-super.js |  27 +++
 ...d-private-typeof-init-err-contains-arguments.js |  34 +++
 ...ested-private-typeof-init-err-contains-super.js |  27 +++
 ...static-comp-name-init-err-contains-arguments.js |  35 +++
 ...ted-static-comp-name-init-err-contains-super.js |  28 +++
 ...d-static-literal-init-err-contains-arguments.js |  34 +++
 ...ested-static-literal-init-err-contains-super.js |  27 +++
 ...d-static-private-init-err-contains-arguments.js |  34 +++
 ...ested-static-private-init-err-contains-super.js |  27 +++
 ...ing-literal-name-init-err-contains-arguments.js |  34 +++
 ...-string-literal-name-init-err-contains-super.js |  27 +++
 ...ing-literal-name-init-err-contains-arguments.js |  34 +++
 ...-string-literal-name-init-err-contains-super.js |  27 +++
 .../nested-ternary-init-err-contains-arguments.js  |  34 +++
 .../nested-ternary-init-err-contains-super.js      |  27 +++
 .../nested-typeof-init-err-contains-arguments.js   |  34 +++
 .../nested-typeof-init-err-contains-super.js       |  27 +++
 .../new-no-sc-line-method-computed-names.js        |  78 ++++++
 .../new-no-sc-line-method-computed-symbol-names.js |  73 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 108 +++++++++
 .../new-no-sc-line-method-literal-names-asi.js     |  63 +++++
 .../new-no-sc-line-method-literal-names.js         |  76 ++++++
 .../new-no-sc-line-method-private-field-usage.js   |  48 ++++
 ...o-sc-line-method-private-method-getter-usage.js |  48 ++++
 .../new-no-sc-line-method-private-method-usage.js  |  48 ++++
 .../new-no-sc-line-method-private-names.js         |  70 ++++++
 ...-line-method-rs-field-identifier-initializer.js |  85 +++++++
 .../new-no-sc-line-method-rs-field-identifier.js   |  92 +++++++
 .../new-no-sc-line-method-rs-private-getter-alt.js | 127 ++++++++++
 .../new-no-sc-line-method-rs-private-getter.js     | 127 ++++++++++
 .../new-no-sc-line-method-rs-private-method-alt.js | 126 ++++++++++
 .../new-no-sc-line-method-rs-private-method.js     | 126 ++++++++++
 .../new-no-sc-line-method-rs-private-setter-alt.js | 126 ++++++++++
 .../new-no-sc-line-method-rs-private-setter.js     | 126 ++++++++++
 ...sc-line-method-rs-privatename-identifier-alt.js | 108 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...method-rs-privatename-identifier-initializer.js | 102 ++++++++
 ...-no-sc-line-method-rs-privatename-identifier.js | 108 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 132 +++++++++++
 ...sync-generator-method-privatename-identifier.js | 133 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 132 +++++++++++
 ...s-static-async-method-privatename-identifier.js | 133 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 123 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 124 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 121 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 121 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 109 +++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 109 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 109 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 103 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 103 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 103 ++++++++
 ...line-method-rs-static-privatename-identifier.js | 109 +++++++++
 .../new-no-sc-line-method-static-private-fields.js |  70 ++++++
 ...ne-method-static-private-methods-with-fields.js |  87 +++++++
 ...new-no-sc-line-method-static-private-methods.js |  74 ++++++
 .../new-no-sc-line-method-string-literal-names.js  |  83 +++++++
 .../elements/new-sc-line-gen-computed-names.js     |  78 ++++++
 .../new-sc-line-gen-computed-symbol-names.js       |  73 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 108 +++++++++
 .../elements/new-sc-line-gen-literal-names-asi.js  |  63 +++++
 .../elements/new-sc-line-gen-literal-names.js      |  76 ++++++
 .../new-sc-line-gen-private-field-usage.js         |  48 ++++
 .../new-sc-line-gen-private-method-getter-usage.js |  48 ++++
 .../new-sc-line-gen-private-method-usage.js        |  48 ++++
 .../elements/new-sc-line-gen-private-names.js      |  70 ++++++
 ...-sc-line-gen-rs-field-identifier-initializer.js |  85 +++++++
 .../new-sc-line-gen-rs-field-identifier.js         |  92 +++++++
 .../new-sc-line-gen-rs-private-getter-alt.js       | 127 ++++++++++
 .../elements/new-sc-line-gen-rs-private-getter.js  | 127 ++++++++++
 .../new-sc-line-gen-rs-private-method-alt.js       | 126 ++++++++++
 .../elements/new-sc-line-gen-rs-private-method.js  | 126 ++++++++++
 .../new-sc-line-gen-rs-private-setter-alt.js       | 126 ++++++++++
 .../elements/new-sc-line-gen-rs-private-setter.js  | 126 ++++++++++
 ...ew-sc-line-gen-rs-privatename-identifier-alt.js | 108 +++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...ne-gen-rs-privatename-identifier-initializer.js | 102 ++++++++
 .../new-sc-line-gen-rs-privatename-identifier.js   | 108 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 132 +++++++++++
 ...sync-generator-method-privatename-identifier.js | 133 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 132 +++++++++++
 ...s-static-async-method-privatename-identifier.js | 133 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 123 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 124 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 121 ++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 121 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 109 +++++++++
 ...ine-gen-rs-static-privatename-identifier-alt.js | 109 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 109 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 103 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 103 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 103 ++++++++
 ...sc-line-gen-rs-static-privatename-identifier.js | 109 +++++++++
 .../new-sc-line-gen-static-private-fields.js       |  70 ++++++
 ...-line-gen-static-private-methods-with-fields.js |  87 +++++++
 .../new-sc-line-gen-static-private-methods.js      |  74 ++++++
 .../new-sc-line-gen-string-literal-names.js        |  83 +++++++
 .../elements/new-sc-line-method-computed-names.js  |  78 ++++++
 .../new-sc-line-method-computed-symbol-names.js    |  73 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 108 +++++++++
 .../new-sc-line-method-literal-names-asi.js        |  63 +++++
 .../elements/new-sc-line-method-literal-names.js   |  76 ++++++
 .../new-sc-line-method-private-field-usage.js      |  48 ++++
 ...w-sc-line-method-private-method-getter-usage.js |  48 ++++
 .../new-sc-line-method-private-method-usage.js     |  48 ++++
 .../elements/new-sc-line-method-private-names.js   |  70 ++++++
 ...-line-method-rs-field-identifier-initializer.js |  85 +++++++
 .../new-sc-line-method-rs-field-identifier.js      |  92 +++++++
 .../new-sc-line-method-rs-private-getter-alt.js    | 127 ++++++++++
 .../new-sc-line-method-rs-private-getter.js        | 127 ++++++++++
 .../new-sc-line-method-rs-private-method-alt.js    | 126 ++++++++++
 .../new-sc-line-method-rs-private-method.js        | 126 ++++++++++
 .../new-sc-line-method-rs-private-setter-alt.js    | 126 ++++++++++
 .../new-sc-line-method-rs-private-setter.js        | 126 ++++++++++
 ...sc-line-method-rs-privatename-identifier-alt.js | 108 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...method-rs-privatename-identifier-initializer.js | 102 ++++++++
 ...new-sc-line-method-rs-privatename-identifier.js | 108 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 132 +++++++++++
 ...sync-generator-method-privatename-identifier.js | 133 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 132 +++++++++++
 ...s-static-async-method-privatename-identifier.js | 133 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 123 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 124 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 121 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 121 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 109 +++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 109 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 109 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 103 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 103 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 103 ++++++++
 ...line-method-rs-static-privatename-identifier.js | 109 +++++++++
 .../new-sc-line-method-static-private-fields.js    |  70 ++++++
 ...ne-method-static-private-methods-with-fields.js |  87 +++++++
 .../new-sc-line-method-static-private-methods.js   |  74 ++++++
 .../new-sc-line-method-string-literal-names.js     |  83 +++++++
 .../elements/private-accessor-name/browser.js      |   0
 .../inst-private-escape-sequence-ZWJ.js            |  81 +++++++
 .../inst-private-escape-sequence-ZWNJ.js           |  81 +++++++
 .../inst-private-escape-sequence-u2118.js          |  81 +++++++
 .../inst-private-escape-sequence-u6F.js            |  81 +++++++
 .../private-accessor-name/inst-private-name-ZWJ.js |  81 +++++++
 .../inst-private-name-ZWNJ.js                      |  81 +++++++
 .../inst-private-name-common.js                    |  81 +++++++
 .../inst-private-name-dollar.js                    |  81 +++++++
 .../inst-private-name-u2118.js                     |  81 +++++++
 .../inst-private-name-underscore.js                |  81 +++++++
 .../class/elements/private-accessor-name/shell.js  |   0
 .../static-private-escape-sequence-ZWJ.js          |  81 +++++++
 .../static-private-escape-sequence-ZWNJ.js         |  81 +++++++
 .../static-private-escape-sequence-u2118.js        |  81 +++++++
 .../static-private-escape-sequence-u6F.js          |  81 +++++++
 .../static-private-name-ZWJ.js                     |  81 +++++++
 .../static-private-name-ZWNJ.js                    |  81 +++++++
 .../static-private-name-common.js                  |  81 +++++++
 .../static-private-name-dollar.js                  |  81 +++++++
 .../static-private-name-u2118.js                   |  81 +++++++
 .../static-private-name-underscore.js              |  81 +++++++
 ...rivate-arrow-fnc-init-err-contains-arguments.js |  35 +++
 .../private-arrow-fnc-init-err-contains-super.js   |  28 +++
 .../private-async-generator-method-name.js         |  62 +++++
 .../class/elements/private-async-method-name.js    |  62 +++++
 ...ved-cls-direct-eval-contains-superproperty-1.js |  37 +++
 ...ved-cls-direct-eval-contains-superproperty-2.js |  34 +++
 ...ved-cls-direct-eval-err-contains-supercall-1.js |  39 +++
 ...ved-cls-direct-eval-err-contains-supercall-2.js |  32 +++
 ...rived-cls-direct-eval-err-contains-supercall.js |  39 +++
 ...d-cls-indirect-eval-contains-superproperty-1.js |  39 +++
 ...d-cls-indirect-eval-contains-superproperty-2.js |  36 +++
 ...d-cls-indirect-eval-err-contains-supercall-1.js |  39 +++
 ...d-cls-indirect-eval-err-contains-supercall-2.js |  32 +++
 ...ved-cls-indirect-eval-err-contains-supercall.js |  39 +++
 .../private-direct-eval-err-contains-arguments.js  |  39 +++
 .../private-direct-eval-err-contains-newtarget.js  |  37 +++
 ...private-field-access-on-inner-arrow-function.js |  44 ++++
 .../private-field-access-on-inner-function.js      |  45 ++++
 .../elements/private-field-after-optional-chain.js |  47 ++++
 .../elements/private-field-as-arrow-function.js    |  36 +++
 .../private-field-as-async-arrow-function.js       |  37 +++
 .../elements/private-field-as-async-function.js    |  37 +++
 .../class/elements/private-field-as-function.js    |  36 +++
 .../elements/private-field-on-nested-class.js      |  48 ++++
 .../private-fields-proxy-default-handler-throws.js |  33 +++
 .../elements/private-generator-method-name.js      |  62 +++++
 ...rivate-getter-access-on-inner-arrow-function.js |  44 ++++
 .../private-getter-access-on-inner-function.js     |  45 ++++
 .../private-getter-is-not-a-own-property.js        |  48 ++++
 .../elements/private-getter-on-nested-class.js     |  39 +++
 ...ate-getter-shadowed-by-field-on-nested-class.js |  47 ++++
 ...te-getter-shadowed-by-getter-on-nested-class.js |  47 ++++
 ...te-getter-shadowed-by-method-on-nested-class.js |  44 ++++
 ...te-getter-shadowed-by-setter-on-nested-class.js |  52 ++++
 .../private-indirect-eval-contains-arguments.js    |  27 +++
 ...private-indirect-eval-err-contains-newtarget.js |  38 +++
 ...ate-literal-name-init-err-contains-arguments.js |  35 +++
 ...private-literal-name-init-err-contains-super.js |  28 +++
 ...rivate-method-access-on-inner-arrow-function.js |  44 ++++
 .../private-method-access-on-inner-function.js     |  45 ++++
 .../class/elements/private-method-comparison.js    |  48 ++++
 .../class/elements/private-method-get-and-call.js  |  50 ++++
 .../private-method-is-not-a-own-property.js        |  46 ++++
 .../class/elements/private-method-length.js        |  50 ++++
 .../elements/private-method-on-nested-class.js     |  39 +++
 ...private-method-referenced-from-static-method.js |  41 ++++
 ...ate-method-shadowed-by-field-on-nested-class.js |  47 ++++
 ...te-method-shadowed-by-getter-on-nested-class.js |  50 ++++
 ...te-method-shadowed-by-setter-on-nested-class.js |  52 ++++
 .../private-method-shadowed-on-nested-class.js     |  41 ++++
 .../class/elements/private-methods/browser.js      |   0
 .../prod-private-async-generator.js                | 135 +++++++++++
 .../private-methods/prod-private-async-method.js   | 130 ++++++++++
 .../private-methods/prod-private-generator.js      | 128 ++++++++++
 .../prod-private-method-initialize-order.js        | 143 +++++++++++
 .../private-methods/prod-private-method.js         | 124 ++++++++++
 .../class/elements/private-methods/shell.js        |   0
 ...rivate-setter-access-on-inner-arrow-function.js |  45 ++++
 .../private-setter-access-on-inner-function.js     |  46 ++++
 .../private-setter-is-not-a-own-property.js        |  49 ++++
 .../elements/private-setter-on-nested-class.js     |  40 ++++
 ...ate-setter-shadowed-by-field-on-nested-class.js |  54 +++++
 ...te-setter-shadowed-by-getter-on-nested-class.js |  53 +++++
 ...te-setter-shadowed-by-method-on-nested-class.js |  53 +++++
 ...te-setter-shadowed-by-setter-on-nested-class.js |  52 ++++
 .../private-static-async-generator-method-name.js  |  63 +++++
 .../elements/private-static-async-method-name.js   |  63 +++++
 ...atic-field-shadowed-by-field-on-nested-class.js |  92 +++++++
 ...tic-field-shadowed-by-getter-on-nested-class.js |  93 ++++++++
 ...tic-field-shadowed-by-method-on-nested-class.js |  93 ++++++++
 ...tic-field-shadowed-by-setter-on-nested-class.js |  94 ++++++++
 ...ivate-static-field-usage-inside-nested-class.js |  82 +++++++
 .../private-static-generator-method-name.js        |  63 +++++
 .../class/elements/private-static-method-length.js |  49 ++++
 .../class/elements/private-static-method-name.js   |  74 ++++++
 ...tic-method-shadowed-by-field-on-nested-class.js |  92 +++++++
 ...ic-method-shadowed-by-getter-on-nested-class.js |  93 ++++++++
 ...ic-method-shadowed-by-method-on-nested-class.js |  93 ++++++++
 ...ic-method-shadowed-by-setter-on-nested-class.js |  94 ++++++++
 ...vate-static-method-usage-inside-nested-class.js |  84 +++++++
 .../private-ternary-init-err-contains-arguments.js |  35 +++
 .../private-ternary-init-err-contains-super.js     |  28 +++
 .../private-typeof-init-err-contains-arguments.js  |  35 +++
 .../private-typeof-init-err-contains-super.js      |  28 +++
 ...te-getter-before-super-return-in-constructor.js |  49 ++++
 ...ter-before-super-return-in-field-initializer.js |  47 ++++
 ...te-method-before-super-return-in-constructor.js |  49 ++++
 ...hod-before-super-return-in-field-initializer.js |  47 ++++
 ...te-setter-before-super-return-in-constructor.js |  49 ++++
 ...ter-before-super-return-in-field-initializer.js |  47 ++++
 .../class/elements/redeclaration-symbol.js         |  57 +++++
 .../expressions/class/elements/redeclaration.js    |  57 +++++
 .../elements/regular-definitions-computed-names.js |  67 ++++++
 .../regular-definitions-computed-symbol-names.js   |  62 +++++
 ...privatename-identifier-semantics-stringvalue.js |  96 ++++++++
 .../regular-definitions-literal-names-asi.js       |  52 ++++
 .../elements/regular-definitions-literal-names.js  |  65 +++++
 .../regular-definitions-private-field-usage.js     |  36 +++
 ...ular-definitions-private-method-getter-usage.js |  36 +++
 .../regular-definitions-private-method-usage.js    |  36 +++
 .../elements/regular-definitions-private-names.js  |  58 +++++
 ...-definitions-rs-field-identifier-initializer.js |  73 ++++++
 .../regular-definitions-rs-field-identifier.js     |  80 +++++++
 .../regular-definitions-rs-private-getter-alt.js   | 115 +++++++++
 .../regular-definitions-rs-private-getter.js       | 115 +++++++++
 .../regular-definitions-rs-private-method-alt.js   | 114 +++++++++
 .../regular-definitions-rs-private-method.js       | 114 +++++++++
 .../regular-definitions-rs-private-setter-alt.js   | 114 +++++++++
 .../regular-definitions-rs-private-setter.js       | 114 +++++++++
 ...ar-definitions-rs-privatename-identifier-alt.js |  96 ++++++++
 ...ns-rs-privatename-identifier-initializer-alt.js |  90 +++++++
 ...itions-rs-privatename-identifier-initializer.js |  90 +++++++
 ...egular-definitions-rs-privatename-identifier.js |  96 ++++++++
 ...-generator-method-privatename-identifier-alt.js | 120 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 121 ++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 120 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 121 ++++++++++
 ...-generator-method-privatename-identifier-alt.js | 111 +++++++++
 ...atic-generator-method-privatename-identifier.js | 112 +++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 109 +++++++++
 ...ions-rs-static-method-privatename-identifier.js | 109 +++++++++
 ...atic-privatename-identifier-alt-by-classname.js |  97 ++++++++
 ...nitions-rs-static-privatename-identifier-alt.js |  97 ++++++++
 ...s-static-privatename-identifier-by-classname.js |  97 ++++++++
 ...name-identifier-initializer-alt-by-classname.js |  91 +++++++
 ...tatic-privatename-identifier-initializer-alt.js |  91 +++++++
 ...rs-static-privatename-identifier-initializer.js |  91 +++++++
 ...definitions-rs-static-privatename-identifier.js |  97 ++++++++
 .../regular-definitions-static-private-fields.js   |  58 +++++
 ...finitions-static-private-methods-with-fields.js |  75 ++++++
 .../regular-definitions-static-private-methods.js  |  62 +++++
 .../regular-definitions-string-literal-names.js    |  72 ++++++
 .../elements/same-line-async-gen-computed-names.js |  90 +++++++
 .../same-line-async-gen-computed-symbol-names.js   |  85 +++++++
 ...privatename-identifier-semantics-stringvalue.js | 119 ++++++++++
 .../same-line-async-gen-literal-names-asi.js       |  75 ++++++
 .../elements/same-line-async-gen-literal-names.js  |  88 +++++++
 .../same-line-async-gen-private-field-usage.js     |  59 +++++
 ...e-line-async-gen-private-method-getter-usage.js |  59 +++++
 .../same-line-async-gen-private-method-usage.js    |  59 +++++
 .../elements/same-line-async-gen-private-names.js  |  81 +++++++
 ...ne-async-gen-rs-field-identifier-initializer.js |  97 ++++++++
 .../same-line-async-gen-rs-field-identifier.js     | 104 ++++++++
 .../same-line-async-gen-rs-private-getter-alt.js   | 138 +++++++++++
 .../same-line-async-gen-rs-private-getter.js       | 138 +++++++++++
 .../same-line-async-gen-rs-private-method-alt.js   | 137 +++++++++++
 .../same-line-async-gen-rs-private-method.js       | 137 +++++++++++
 .../same-line-async-gen-rs-private-setter-alt.js   | 137 +++++++++++
 .../same-line-async-gen-rs-private-setter.js       | 137 +++++++++++
 ...line-async-gen-rs-privatename-identifier-alt.js | 119 ++++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 113 +++++++++
 ...nc-gen-rs-privatename-identifier-initializer.js | 113 +++++++++
 ...ame-line-async-gen-rs-privatename-identifier.js | 119 ++++++++++
 ...-generator-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...sync-generator-method-privatename-identifier.js | 146 ++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 145 ++++++++++++
 ...s-static-async-method-privatename-identifier.js | 146 ++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 134 +++++++++++
 ...atic-generator-method-privatename-identifier.js | 135 +++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 132 +++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 132 +++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 120 ++++++++++
 ...ync-gen-rs-static-privatename-identifier-alt.js | 120 ++++++++++
 ...s-static-privatename-identifier-by-classname.js | 120 ++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 114 +++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 114 +++++++++
 ...rs-static-privatename-identifier-initializer.js | 114 +++++++++
 ...e-async-gen-rs-static-privatename-identifier.js | 120 ++++++++++
 .../same-line-async-gen-static-private-fields.js   |  81 +++++++
 ...async-gen-static-private-methods-with-fields.js |  98 ++++++++
 .../same-line-async-gen-static-private-methods.js  |  85 +++++++
 .../same-line-async-gen-string-literal-names.js    |  95 ++++++++
 .../same-line-async-method-computed-names.js       |  89 +++++++
 ...same-line-async-method-computed-symbol-names.js |  84 +++++++
 ...privatename-identifier-semantics-stringvalue.js | 118 +++++++++
 .../same-line-async-method-literal-names-asi.js    |  74 ++++++
 .../same-line-async-method-literal-names.js        |  87 +++++++
 .../same-line-async-method-private-field-usage.js  |  58 +++++
 ...ine-async-method-private-method-getter-usage.js |  58 +++++
 .../same-line-async-method-private-method-usage.js |  58 +++++
 .../same-line-async-method-private-names.js        |  80 +++++++
 ...async-method-rs-field-identifier-initializer.js |  96 ++++++++
 .../same-line-async-method-rs-field-identifier.js  | 103 ++++++++
 ...same-line-async-method-rs-private-getter-alt.js | 137 +++++++++++
 .../same-line-async-method-rs-private-getter.js    | 137 +++++++++++
 ...same-line-async-method-rs-private-method-alt.js | 136 +++++++++++
 .../same-line-async-method-rs-private-method.js    | 136 +++++++++++
 ...same-line-async-method-rs-private-setter-alt.js | 136 +++++++++++
 .../same-line-async-method-rs-private-setter.js    | 136 +++++++++++
 ...e-async-method-rs-privatename-identifier-alt.js | 118 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 112 +++++++++
 ...method-rs-privatename-identifier-initializer.js | 112 +++++++++
 ...-line-async-method-rs-privatename-identifier.js | 118 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 144 +++++++++++
 ...sync-generator-method-privatename-identifier.js | 145 ++++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 144 +++++++++++
 ...s-static-async-method-privatename-identifier.js | 145 ++++++++++++
 ...-generator-method-privatename-identifier-alt.js | 133 +++++++++++
 ...atic-generator-method-privatename-identifier.js | 134 +++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 131 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 131 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 119 ++++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 119 ++++++++++
 ...s-static-privatename-identifier-by-classname.js | 119 ++++++++++
 ...name-identifier-initializer-alt-by-classname.js | 113 +++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 113 +++++++++
 ...rs-static-privatename-identifier-initializer.js | 113 +++++++++
 ...sync-method-rs-static-privatename-identifier.js | 119 ++++++++++
 ...same-line-async-method-static-private-fields.js |  80 +++++++
 ...nc-method-static-private-methods-with-fields.js |  97 ++++++++
 ...ame-line-async-method-static-private-methods.js |  84 +++++++
 .../same-line-async-method-string-literal-names.js |  94 ++++++++
 .../class/elements/same-line-gen-computed-names.js |  77 ++++++
 .../same-line-gen-computed-symbol-names.js         |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 .../elements/same-line-gen-literal-names-asi.js    |  62 +++++
 .../class/elements/same-line-gen-literal-names.js  |  75 ++++++
 .../elements/same-line-gen-private-field-usage.js  |  47 ++++
 .../same-line-gen-private-method-getter-usage.js   |  47 ++++
 .../elements/same-line-gen-private-method-usage.js |  47 ++++
 .../class/elements/same-line-gen-private-names.js  |  69 ++++++
 ...ame-line-gen-rs-field-identifier-initializer.js |  84 +++++++
 .../elements/same-line-gen-rs-field-identifier.js  |  91 +++++++
 .../same-line-gen-rs-private-getter-alt.js         | 126 ++++++++++
 .../elements/same-line-gen-rs-private-getter.js    | 126 ++++++++++
 .../same-line-gen-rs-private-method-alt.js         | 125 ++++++++++
 .../elements/same-line-gen-rs-private-method.js    | 125 ++++++++++
 .../same-line-gen-rs-private-setter-alt.js         | 125 ++++++++++
 .../elements/same-line-gen-rs-private-setter.js    | 125 ++++++++++
 .../same-line-gen-rs-privatename-identifier-alt.js | 107 +++++++++
 ...en-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...ne-gen-rs-privatename-identifier-initializer.js | 101 ++++++++
 .../same-line-gen-rs-privatename-identifier.js     | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...-gen-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...ine-gen-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...me-line-gen-rs-static-privatename-identifier.js | 108 +++++++++
 .../same-line-gen-static-private-fields.js         |  69 ++++++
 ...-line-gen-static-private-methods-with-fields.js |  86 +++++++
 .../same-line-gen-static-private-methods.js        |  73 ++++++
 .../elements/same-line-gen-string-literal-names.js |  82 +++++++
 .../elements/same-line-method-computed-names.js    |  77 ++++++
 .../same-line-method-computed-symbol-names.js      |  72 ++++++
 ...privatename-identifier-semantics-stringvalue.js | 107 +++++++++
 .../elements/same-line-method-literal-names-asi.js |  62 +++++
 .../elements/same-line-method-literal-names.js     |  75 ++++++
 .../same-line-method-private-field-usage.js        |  47 ++++
 ...same-line-method-private-method-getter-usage.js |  47 ++++
 .../same-line-method-private-method-usage.js       |  47 ++++
 .../elements/same-line-method-private-names.js     |  69 ++++++
 ...-line-method-rs-field-identifier-initializer.js |  84 +++++++
 .../same-line-method-rs-field-identifier.js        |  91 +++++++
 .../same-line-method-rs-private-getter-alt.js      | 126 ++++++++++
 .../elements/same-line-method-rs-private-getter.js | 126 ++++++++++
 .../same-line-method-rs-private-method-alt.js      | 125 ++++++++++
 .../elements/same-line-method-rs-private-method.js | 125 ++++++++++
 .../same-line-method-rs-private-setter-alt.js      | 125 ++++++++++
 .../elements/same-line-method-rs-private-setter.js | 125 ++++++++++
 ...me-line-method-rs-privatename-identifier-alt.js | 107 +++++++++
 ...od-rs-privatename-identifier-initializer-alt.js | 101 ++++++++
 ...method-rs-privatename-identifier-initializer.js | 101 ++++++++
 .../same-line-method-rs-privatename-identifier.js  | 107 +++++++++
 ...-generator-method-privatename-identifier-alt.js | 131 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 132 +++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 131 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 132 +++++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...atic-generator-method-privatename-identifier.js | 123 ++++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 120 ++++++++++
 ...thod-rs-static-method-privatename-identifier.js | 120 ++++++++++
 ...atic-privatename-identifier-alt-by-classname.js | 108 +++++++++
 ...-method-rs-static-privatename-identifier-alt.js | 108 +++++++++
 ...s-static-privatename-identifier-by-classname.js | 108 +++++++++
 ...name-identifier-initializer-alt-by-classname.js | 102 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js | 102 ++++++++
 ...rs-static-privatename-identifier-initializer.js | 102 ++++++++
 ...line-method-rs-static-privatename-identifier.js | 108 +++++++++
 .../same-line-method-static-private-fields.js      |  69 ++++++
 ...ne-method-static-private-methods-with-fields.js |  86 +++++++
 .../same-line-method-static-private-methods.js     |  73 ++++++
 .../same-line-method-string-literal-names.js       |  82 +++++++
 .../language/expressions/class/elements/shell.js   |   0
 .../static-as-valid-instance-field-assigned.js     |  38 +++
 .../elements/static-as-valid-instance-field.js     |  38 +++
 .../static-as-valid-static-field-assigned.js       |  30 +++
 .../class/elements/static-as-valid-static-field.js |  30 +++
 ...static-comp-name-init-err-contains-arguments.js |  36 +++
 .../static-comp-name-init-err-contains-super.js    |  29 +++
 .../static-field-anonymous-function-length.js      |  64 +++++
 .../static-field-anonymous-function-name.js        |  73 ++++++
 .../class/elements/static-field-declaration.js     | 120 ++++++++++
 ...static-field-init-this-inside-arrow-function.js |  65 +++++
 .../class/elements/static-field-init-with-this.js  |  69 ++++++
 .../class/elements/static-field-redeclaration.js   |  71 ++++++
 .../static-literal-init-err-contains-arguments.js  |  35 +++
 .../static-literal-init-err-contains-super.js      |  28 +++
 ...-private-fields-proxy-default-handler-throws.js |  31 +++
 ...rivate-getter-access-on-inner-arrow-function.js |  47 ++++
 .../static-private-getter-access-on-inner-class.js |  45 ++++
 ...atic-private-getter-access-on-inner-function.js |  49 ++++
 .../class/elements/static-private-getter.js        |  58 +++++
 .../static-private-init-err-contains-arguments.js  |  35 +++
 .../static-private-init-err-contains-super.js      |  28 +++
 ...rivate-method-access-on-inner-arrow-function.js |  45 ++++
 ...atic-private-method-access-on-inner-function.js |  47 ++++
 ...ivate-method-and-instance-method-brand-check.js |  67 ++++++
 ...ivate-method-referenced-from-instance-method.js |  41 ++++
 .../static-private-method-subclass-receiver.js     |  40 ++++
 ...private-methods-proxy-default-handler-throws.js |  34 +++
 ...rivate-setter-access-on-inner-arrow-function.js |  48 ++++
 .../static-private-setter-access-on-inner-class.js |  47 ++++
 ...atic-private-setter-access-on-inner-function.js |  50 ++++
 .../class/elements/static-private-setter.js        |  59 +++++
 ...ing-literal-name-init-err-contains-arguments.js |  35 +++
 ...-string-literal-name-init-err-contains-super.js |  28 +++
 ...ing-literal-name-init-err-contains-arguments.js |  35 +++
 .../string-literal-name-init-err-contains-super.js |  28 +++
 .../expressions/class/elements/syntax/browser.js   |   0
 .../class/elements/syntax/early-errors/browser.js  |   0
 .../class-heritage-array-literal-arrow-heritage.js |  26 ++
 ...-heritage-array-literal-async-arrow-heritage.js |  26 ++
 .../elements/syntax/early-errors/delete/browser.js |   0
 ...-call-expression-private-method-accessor-get.js |  46 ++++
 ...-call-expression-private-method-accessor-set.js |  46 ++++
 ...ete-call-expression-private-method-async-gen.js |  46 ++++
 ...-delete-call-expression-private-method-async.js |  46 ++++
 ...rr-delete-call-expression-private-method-gen.js |  46 ++++
 ...ed-err-delete-call-expression-private-method.js |  46 ++++
 ...-delete-call-expression-private-no-reference.js |  46 ++++
 ...vered-err-delete-call-expression-privatename.js |  46 ++++
 ...ember-expression-private-method-accessor-get.js |  45 ++++
 ...ember-expression-private-method-accessor-set.js |  45 ++++
 ...e-member-expression-private-method-async-gen.js |  45 ++++
 ...elete-member-expression-private-method-async.js |  45 ++++
 ...-delete-member-expression-private-method-gen.js |  45 ++++
 ...-err-delete-member-expression-private-method.js |  45 ++++
 ...elete-member-expression-private-no-reference.js |  44 ++++
 ...red-err-delete-member-expression-privatename.js |  44 ++++
 ...-call-expression-private-method-accessor-get.js |  40 ++++
 ...-call-expression-private-method-accessor-set.js |  40 ++++
 ...ete-call-expression-private-method-async-gen.js |  40 ++++
 ...-delete-call-expression-private-method-async.js |  40 ++++
 ...rr-delete-call-expression-private-method-gen.js |  40 ++++
 ...te-err-delete-call-expression-private-method.js |  40 ++++
 ...-delete-call-expression-private-no-reference.js |  40 ++++
 ...elete-err-delete-call-expression-privatename.js |  40 ++++
 ...ember-expression-private-method-accessor-get.js |  39 +++
 ...ember-expression-private-method-accessor-set.js |  39 +++
 ...e-member-expression-private-method-async-gen.js |  39 +++
 ...elete-member-expression-private-method-async.js |  39 +++
 ...-delete-member-expression-private-method-gen.js |  39 +++
 ...-err-delete-member-expression-private-method.js |  39 +++
 ...elete-member-expression-private-no-reference.js |  38 +++
 ...ete-err-delete-member-expression-privatename.js |  38 +++
 ...-call-expression-private-method-accessor-get.js |  46 ++++
 ...-call-expression-private-method-accessor-set.js |  46 ++++
 ...ete-call-expression-private-method-async-gen.js |  46 ++++
 ...-delete-call-expression-private-method-async.js |  46 ++++
 ...rr-delete-call-expression-private-method-gen.js |  46 ++++
 ...ed-err-delete-call-expression-private-method.js |  46 ++++
 ...-delete-call-expression-private-no-reference.js |  46 ++++
 ...vered-err-delete-call-expression-privatename.js |  46 ++++
 ...ember-expression-private-method-accessor-get.js |  45 ++++
 ...ember-expression-private-method-accessor-set.js |  45 ++++
 ...e-member-expression-private-method-async-gen.js |  45 ++++
 ...elete-member-expression-private-method-async.js |  45 ++++
 ...-delete-member-expression-private-method-gen.js |  45 ++++
 ...-err-delete-member-expression-private-method.js |  45 ++++
 ...elete-member-expression-private-no-reference.js |  44 ++++
 ...red-err-delete-member-expression-privatename.js |  44 ++++
 ...-call-expression-private-method-accessor-get.js |  49 ++++
 ...-call-expression-private-method-accessor-set.js |  49 ++++
 ...ete-call-expression-private-method-async-gen.js |  49 ++++
 ...-delete-call-expression-private-method-async.js |  49 ++++
 ...rr-delete-call-expression-private-method-gen.js |  49 ++++
 ...ed-err-delete-call-expression-private-method.js |  49 ++++
 ...-delete-call-expression-private-no-reference.js |  49 ++++
 ...vered-err-delete-call-expression-privatename.js |  49 ++++
 ...ember-expression-private-method-accessor-get.js |  48 ++++
 ...ember-expression-private-method-accessor-set.js |  48 ++++
 ...e-member-expression-private-method-async-gen.js |  48 ++++
 ...elete-member-expression-private-method-async.js |  48 ++++
 ...-delete-member-expression-private-method-gen.js |  48 ++++
 ...-err-delete-member-expression-private-method.js |  48 ++++
 ...elete-member-expression-private-no-reference.js |  47 ++++
 ...red-err-delete-member-expression-privatename.js |  47 ++++
 ...-call-expression-private-method-accessor-get.js |  43 ++++
 ...-call-expression-private-method-accessor-set.js |  43 ++++
 ...ete-call-expression-private-method-async-gen.js |  43 ++++
 ...-delete-call-expression-private-method-async.js |  43 ++++
 ...rr-delete-call-expression-private-method-gen.js |  43 ++++
 ...te-err-delete-call-expression-private-method.js |  43 ++++
 ...-delete-call-expression-private-no-reference.js |  43 ++++
 ...elete-err-delete-call-expression-privatename.js |  43 ++++
 ...ember-expression-private-method-accessor-get.js |  42 ++++
 ...ember-expression-private-method-accessor-set.js |  42 ++++
 ...e-member-expression-private-method-async-gen.js |  42 ++++
 ...elete-member-expression-private-method-async.js |  42 ++++
 ...-delete-member-expression-private-method-gen.js |  42 ++++
 ...-err-delete-member-expression-private-method.js |  42 ++++
 ...elete-member-expression-private-no-reference.js |  41 ++++
 ...ete-err-delete-member-expression-privatename.js |  41 ++++
 ...-call-expression-private-method-accessor-get.js |  49 ++++
 ...-call-expression-private-method-accessor-set.js |  49 ++++
 ...ete-call-expression-private-method-async-gen.js |  49 ++++
 ...-delete-call-expression-private-method-async.js |  49 ++++
 ...rr-delete-call-expression-private-method-gen.js |  49 ++++
 ...ed-err-delete-call-expression-private-method.js |  49 ++++
 ...-delete-call-expression-private-no-reference.js |  49 ++++
 ...vered-err-delete-call-expression-privatename.js |  49 ++++
 ...ember-expression-private-method-accessor-get.js |  48 ++++
 ...ember-expression-private-method-accessor-set.js |  48 ++++
 ...e-member-expression-private-method-async-gen.js |  48 ++++
 ...elete-member-expression-private-method-async.js |  48 ++++
 ...-delete-member-expression-private-method-gen.js |  48 ++++
 ...-err-delete-member-expression-private-method.js |  48 ++++
 ...elete-member-expression-private-no-reference.js |  47 ++++
 ...red-err-delete-member-expression-privatename.js |  47 ++++
 .../elements/syntax/early-errors/delete/shell.js   |   0
 .../grammar-class-body-ctor-duplicate.js           |  26 ++
 .../early-errors/grammar-ctor-super-no-heritage.js |  30 +++
 .../grammar-field-identifier-invalid-ues-error.js  |  71 ++++++
 .../grammar-field-identifier-invalid-zwj-error.js  |  71 ++++++
 .../grammar-field-identifier-invalid-zwnj-error.js |  71 ++++++
 .../early-errors/grammar-fields-same-line-error.js |  34 +++
 ...-environment-on-class-heritage-array-literal.js |  40 ++++
 ...-environment-on-class-heritage-chained-usage.js |  40 ++++
 ...onment-on-class-heritage-function-expression.js |  40 ++++
 ...te-environment-on-class-heritage-obj-literal.js |  40 ++++
 ...vate-environment-on-class-heritage-recursive.js |  40 ++++
 ...rammar-private-environment-on-class-heritage.js |  40 ++++
 ...rammar-private-field-on-object-destructuring.js |  33 +++
 .../grammar-private-field-super-access.js          |  36 +++
 .../grammar-privatemeth-duplicate-async-gen.js     |  27 +++
 .../grammar-privatemeth-duplicate-async.js         |  27 +++
 .../grammar-privatemeth-duplicate-gen.js           |  27 +++
 .../grammar-privatemeth-duplicate-get-field.js     |  27 +++
 .../grammar-privatemeth-duplicate-get-get.js       |  27 +++
 .../grammar-privatemeth-duplicate-meth-field.js    |  27 +++
 .../grammar-privatemeth-duplicate-meth-get.js      |  27 +++
 .../grammar-privatemeth-duplicate-meth-meth.js     |  27 +++
 .../grammar-privatemeth-duplicate-meth-set.js      |  27 +++
 ...ammar-privatemeth-duplicate-meth-staticfield.js |  27 +++
 ...rammar-privatemeth-duplicate-meth-staticmeth.js |  27 +++
 .../grammar-privatemeth-duplicate-set-field.js     |  27 +++
 .../grammar-privatemeth-duplicate-set-set.js       |  27 +++
 .../grammar-privatename-constructor.js             |  26 ++
 .../early-errors/grammar-privatename-error.js      |  37 +++
 .../grammar-privatename-identifier-invalid-ues.js  |  65 +++++
 ...mar-privatename-identifier-invalid-zwj-error.js |  66 ++++++
 ...ar-privatename-identifier-invalid-zwnj-error.js |  66 ++++++
 ...mar-privatename-in-computed-property-missing.js |  53 +++++
 ...ivatename-whitespace-error-accessor-get-meth.js |  30 +++
 ...ivatename-whitespace-error-accessor-set-meth.js |  30 +++
 ...-privatename-whitespace-error-async-gen-meth.js |  30 +++
 ...mmar-privatename-whitespace-error-async-meth.js |  30 +++
 ...ammar-privatename-whitespace-error-call-expr.js |  40 ++++
 ...mmar-privatename-whitespace-error-field-init.js |  30 +++
 .../grammar-privatename-whitespace-error-field.js  |  30 +++
 ...rammar-privatename-whitespace-error-gen-meth.js |  30 +++
 ...mar-privatename-whitespace-error-member-expr.js |  35 +++
 ...ammar-privatename-whitespace-error-meth.case.js |  30 +++
 ...me-whitespace-error-static-accessor-get-meth.js |  30 +++
 ...me-whitespace-error-static-accessor-set-meth.js |  30 +++
 ...ename-whitespace-error-static-async-gen-meth.js |  30 +++
 ...ivatename-whitespace-error-static-async-meth.js |  30 +++
 ...ivatename-whitespace-error-static-field-init.js |  30 +++
 ...ar-privatename-whitespace-error-static-field.js |  30 +++
 ...privatename-whitespace-error-static-gen-meth.js |  30 +++
 ...mar-privatename-whitespace-error-static-meth.js |  30 +++
 .../grammar-privatenames-same-line-error.js        |  37 +++
 ...rammar-special-meth-contains-super-async-gen.js |  28 +++
 .../grammar-special-meth-contains-super-async.js   |  28 +++
 .../grammar-special-meth-contains-super-gen.js     |  28 +++
 .../grammar-special-meth-contains-super-get.js     |  28 +++
 .../grammar-special-meth-contains-super-method.js  |  28 +++
 ...pecial-meth-contains-super-private-async-gen.js |  28 +++
 ...ar-special-meth-contains-super-private-async.js |  28 +++
 ...mmar-special-meth-contains-super-private-gen.js |  28 +++
 ...r-special-meth-contains-super-private-method.js |  28 +++
 .../grammar-special-meth-contains-super-set.js     |  28 +++
 .../grammar-special-meth-ctor-async-gen.js         |  26 ++
 .../grammar-special-meth-ctor-async-meth.js        |  26 ++
 .../early-errors/grammar-special-meth-ctor-gen.js  |  26 ++
 .../early-errors/grammar-special-meth-ctor-get.js  |  26 ++
 .../early-errors/grammar-special-meth-ctor-set.js  |  26 ++
 .../grammar-static-async-gen-meth-prototype.js     |  26 ++
 .../grammar-static-async-gen-meth-super.js         |  28 +++
 .../grammar-static-async-meth-prototype.js         |  26 ++
 .../grammar-static-async-meth-super.js             |  28 +++
 .../grammar-static-gen-meth-prototype.js           |  26 ++
 .../early-errors/grammar-static-gen-meth-super.js  |  28 +++
 .../grammar-static-get-meth-prototype.js           |  26 ++
 .../early-errors/grammar-static-get-meth-super.js  |  28 +++
 .../early-errors/grammar-static-meth-prototype.js  |  26 ++
 .../early-errors/grammar-static-meth-super.js      |  28 +++
 ...ar-static-private-async-gen-meth-constructor.js |  26 ++
 .../grammar-static-private-async-gen-meth-super.js |  28 +++
 ...rammar-static-private-async-meth-constructor.js |  26 ++
 .../grammar-static-private-async-meth-super.js     |  28 +++
 .../grammar-static-private-gen-meth-constructor.js |  26 ++
 .../grammar-static-private-gen-meth-super.js       |  28 +++
 .../grammar-static-private-meth-constructor.js     |  26 ++
 .../grammar-static-private-meth-super.js           |  28 +++
 .../grammar-static-privatename-constructor.js      |  26 ++
 .../grammar-static-set-meth-prototype.js           |  26 ++
 .../early-errors/grammar-static-set-meth-super.js  |  28 +++
 .../syntax/early-errors/invalid-names/browser.js   |   0
 .../field-init-call-expression-bad-reference.js    |  53 +++++
 .../field-init-call-expression-this.js             |  53 +++++
 .../field-init-fn-call-expression-bad-reference.js |  53 +++++
 .../field-init-fn-call-expression-this.js          |  53 +++++
 ...ield-init-fn-member-expression-bad-reference.js |  53 +++++
 .../field-init-fn-member-expression-this.js        |  53 +++++
 ...-init-heritage-call-expression-bad-reference.js |  57 +++++
 .../field-init-heritage-call-expression-this.js    |  57 +++++
 ...nit-heritage-member-expression-bad-reference.js |  57 +++++
 .../field-init-heritage-member-expression-this.js  |  57 +++++
 .../field-init-member-expression-bad-reference.js  |  53 +++++
 .../field-init-member-expression-this.js           |  53 +++++
 .../method-call-expression-bad-reference.js        |  53 +++++
 .../invalid-names/method-call-expression-this.js   |  53 +++++
 .../method-fn-call-expression-bad-reference.js     |  55 +++++
 .../method-fn-call-expression-this.js              |  55 +++++
 .../method-fn-member-expression-bad-reference.js   |  55 +++++
 .../method-fn-member-expression-this.js            |  55 +++++
 ...ethod-heritage-call-expression-bad-reference.js |  59 +++++
 .../method-heritage-call-expression-this.js        |  59 +++++
 ...hod-heritage-member-expression-bad-reference.js |  59 +++++
 .../method-heritage-member-expression-this.js      |  59 +++++
 .../method-member-expression-bad-reference.js      |  53 +++++
 .../invalid-names/method-member-expression-this.js |  53 +++++
 .../method-outter-call-expression-bad-reference.js |  59 +++++
 .../method-outter-call-expression-this.js          |  59 +++++
 ...ethod-outter-member-expression-bad-reference.js |  59 +++++
 .../method-outter-member-expression-this.js        |  59 +++++
 .../syntax/early-errors/invalid-names/shell.js     |   0
 .../private-async-generator-cannot-escape-token.js |  26 ++
 .../private-async-method-cannot-escape-token.js    |  26 ++
 .../private-call-exp-cannot-escape-token.js        |  34 +++
 .../private-field-cannot-escape-token.js           |  26 ++
 .../private-generator-cannot-escape-token.js       |  26 ++
 .../private-member-exp-cannot-escape-token.js      |  34 +++
 .../private-method-cannot-escape-token.js          |  26 ++
 .../class/elements/syntax/early-errors/shell.js    |   0
 .../early-errors/super-private-access-invalid.js   |  37 +++
 .../expressions/class/elements/syntax/shell.js     |   0
 .../class/elements/syntax/valid/browser.js         |   0
 .../valid/grammar-class-body-ctor-no-heritage.js   |  24 ++
 ...ammar-field-classelementname-initializer-alt.js |  72 ++++++
 .../grammar-field-classelementname-initializer.js  |  72 ++++++
 .../syntax/valid/grammar-field-identifier-alt.js   |  72 ++++++
 .../syntax/valid/grammar-field-identifier.js       |  72 ++++++
 .../syntax/valid/grammar-fields-multi-line.js      |  31 +++
 .../valid/grammar-privatemeth-duplicate-get-set.js |  24 ++
 ...r-privatemeth-duplicate-meth-nestedclassmeth.js |  29 +++
 ...privatename-classelementname-initializer-alt.js |  70 ++++++
 ...mar-privatename-classelementname-initializer.js |  70 ++++++
 .../syntax/valid/grammar-privatename-identifier.js |  67 ++++++
 ...ammar-privatename-no-initializer-with-method.js |  35 +++
 .../valid/grammar-privatenames-multi-line.js       |  35 +++
 ...rammar-special-prototype-accessor-meth-valid.js |  58 +++++
 ...ammar-special-prototype-async-gen-meth-valid.js |  51 ++++
 .../grammar-special-prototype-async-meth-valid.js  |  51 ++++
 .../grammar-special-prototype-gen-meth-valid.js    |  51 ++++
 .../valid/grammar-special-prototype-meth-valid.js  |  51 ++++
 .../grammar-static-ctor-accessor-meth-valid.js     |  32 +++
 .../grammar-static-ctor-async-gen-meth-valid.js    |  31 +++
 .../valid/grammar-static-ctor-async-meth-valid.js  |  31 +++
 .../valid/grammar-static-ctor-gen-meth-valid.js    |  31 +++
 .../syntax/valid/grammar-static-ctor-meth-valid.js |  31 +++
 ...mmar-static-private-async-gen-meth-prototype.js |  23 ++
 .../grammar-static-private-async-meth-prototype.js |  23 ++
 .../grammar-static-private-gen-meth-prototype.js   |  23 ++
 .../valid/grammar-static-private-meth-prototype.js |  23 ++
 .../class/elements/syntax/valid/shell.js           |   0
 .../ternary-init-err-contains-arguments.js         |  35 +++
 .../elements/ternary-init-err-contains-super.js    |  28 +++
 .../elements/typeof-init-err-contains-arguments.js |  35 +++
 .../elements/typeof-init-err-contains-super.js     |  28 +++
 .../class/elements/wrapped-in-sc-computed-names.js |  69 ++++++
 .../wrapped-in-sc-computed-symbol-names.js         |  64 +++++
 ...privatename-identifier-semantics-stringvalue.js |  98 ++++++++
 .../elements/wrapped-in-sc-literal-names-asi.js    |  54 +++++
 .../class/elements/wrapped-in-sc-literal-names.js  |  67 ++++++
 .../elements/wrapped-in-sc-private-field-usage.js  |  38 +++
 .../wrapped-in-sc-private-method-getter-usage.js   |  38 +++
 .../elements/wrapped-in-sc-private-method-usage.js |  38 +++
 .../class/elements/wrapped-in-sc-private-names.js  |  60 +++++
 ...rapped-in-sc-rs-field-identifier-initializer.js |  75 ++++++
 .../elements/wrapped-in-sc-rs-field-identifier.js  |  82 +++++++
 .../wrapped-in-sc-rs-private-getter-alt.js         | 117 +++++++++
 .../elements/wrapped-in-sc-rs-private-getter.js    | 117 +++++++++
 .../wrapped-in-sc-rs-private-method-alt.js         | 116 +++++++++
 .../elements/wrapped-in-sc-rs-private-method.js    | 116 +++++++++
 .../wrapped-in-sc-rs-private-setter-alt.js         | 116 +++++++++
 .../elements/wrapped-in-sc-rs-private-setter.js    | 116 +++++++++
 .../wrapped-in-sc-rs-privatename-identifier-alt.js |  98 ++++++++
 ...sc-rs-privatename-identifier-initializer-alt.js |  92 +++++++
 ...-in-sc-rs-privatename-identifier-initializer.js |  92 +++++++
 .../wrapped-in-sc-rs-privatename-identifier.js     |  98 ++++++++
 ...-generator-method-privatename-identifier-alt.js | 122 ++++++++++
 ...sync-generator-method-privatename-identifier.js | 123 ++++++++++
 ...atic-async-method-privatename-identifier-alt.js | 122 ++++++++++
 ...s-static-async-method-privatename-identifier.js | 123 ++++++++++
 ...-generator-method-privatename-identifier-alt.js | 113 +++++++++
 ...atic-generator-method-privatename-identifier.js | 114 +++++++++
 ...-rs-static-method-privatename-identifier-alt.js | 111 +++++++++
 ...n-sc-rs-static-method-privatename-identifier.js | 111 +++++++++
 ...atic-privatename-identifier-alt-by-classname.js |  99 ++++++++
 ...d-in-sc-rs-static-privatename-identifier-alt.js |  99 ++++++++
 ...s-static-privatename-identifier-by-classname.js |  99 ++++++++
 ...name-identifier-initializer-alt-by-classname.js |  93 ++++++++
 ...tatic-privatename-identifier-initializer-alt.js |  93 ++++++++
 ...rs-static-privatename-identifier-initializer.js |  93 ++++++++
 ...apped-in-sc-rs-static-privatename-identifier.js |  99 ++++++++
 .../wrapped-in-sc-static-private-fields.js         |  60 +++++
 ...ped-in-sc-static-private-methods-with-fields.js |  77 ++++++
 .../wrapped-in-sc-static-private-methods.js        |  64 +++++
 .../elements/wrapped-in-sc-string-literal-names.js |  74 ++++++
 1455 files changed, 111289 insertions(+)
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-body-private-indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-spread-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-catch.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-async-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-sync-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-async-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-sync-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-multiple.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-single.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-obj.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-return.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-expr-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-null-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-undefined-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-done-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-value-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-non-object-ignores-then.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-boolean-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-null-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-number-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-object-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-string-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-symbol-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-undefined-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-return.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-spread-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-catch.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-async-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-async-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-sync-iterator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-multiple.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-single.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-obj.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-return.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-expr-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-null-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-undefined-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-done-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-value-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-non-object-ignores-then.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-boolean-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-null-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-number-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-object-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-string-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-symbol-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-undefined-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-get-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-boolean-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-null-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-number-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-object-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-string-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-symbol-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-undefined-fulfillpromise.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-returns-abrupt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-next.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-return.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-throw.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-arguments-from-parent-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-arguments-from-own-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method-static/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-arguments-from-parent-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-arguments-from-own-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/async-private-method/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-anonymous.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-decl.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-default-export.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-expr.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive-symbol.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/ctor-called-after-fields-init.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-referenceerror.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-err.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-noncallable.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-nonobject.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-tostring-err.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-valueof-err.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/evaluation-error/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/field-declaration.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-anonymous-function-length.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-3.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-4.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-5.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-computed-name-static-propname-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-duplicate-privatenames.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-literal-name-propname-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-multiple-definitions-static-private-methods-proxy.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-run-once-on-double-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-string-name-propname-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-spread-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-multiple.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-single.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-obj.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier-escaped.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-spread-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-strict-strict.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-multiple.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-single.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-obj.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/grammar-private-field-optional-chaining.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/indirect-eval-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/init-err-evaluation.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/init-value-defined-after-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/init-value-incremental.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/intercalated-static-non-static-computed-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-definitions-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWNJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u2118.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u6F.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWNJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-common.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-dollar.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-u2118.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-underscore.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWNJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u2118.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u6F.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWNJ.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-common.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-dollar.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-u2118.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-underscore.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-async-generator-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-async-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-1.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-2.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-after-optional-chain.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-as-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-as-async-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-as-async-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-as-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-fields-proxy-default-handler-throws.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-generator-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-is-not-a-own-property.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-method-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-err-contains-newtarget.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-comparison.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-get-and-call.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-is-not-a-own-property.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-length.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-referenced-from-static-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-generator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-generator.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method-initialize-order.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-methods/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-is-not-a-own-property.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-method-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-async-generator-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-async-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-method-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-field-usage-inside-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-generator-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-length.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-field-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-getter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-method-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-setter-on-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-static-method-usage-inside-nested-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-field-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-field-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-field-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/redeclaration-symbol.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/redeclaration.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/regular-definitions-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-async-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-gen-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/same-line-method-string-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field-assigned.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field-assigned.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-length.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-name.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-declaration.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-init-this-inside-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-init-with-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-field-redeclaration.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-fields-proxy-default-handler-throws.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-method-and-instance-method-brand-check.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-method-referenced-from-instance-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-method-subclass-receiver.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-methods-proxy-default-handler-throws.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-arrow-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-class.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-function.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-arrow-heritage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-async-arrow-heritage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-no-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-privatename.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-class-body-ctor-duplicate.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-ctor-super-no-heritage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-ues-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwj-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwnj-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-fields-same-line-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-array-literal.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-chained-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-function-expression.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-obj-literal.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-recursive.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-on-object-destructuring.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-super-access.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticfield.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticmeth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-ues.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwj-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwnj-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-in-computed-property-missing.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-get-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-set-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-gen-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-call-expr.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field-init.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-gen-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-member-expr.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-meth.case.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-get-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-set-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-gen-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field-init.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-gen-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatenames-same-line-error.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-meth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-gen.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-get.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-privatename-constructor.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-generator-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-method-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-call-exp-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-field-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-generator-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-member-exp-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-method-cannot-escape-token.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/super-private-access-invalid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/browser.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-class-body-ctor-no-heritage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-fields-multi-line.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-get-set.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-meth-nestedclassmeth.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-no-initializer-with-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatenames-multi-line.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-accessor-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-gen-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-gen-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-accessor-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-gen-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-gen-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-meth-valid.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-gen-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-meth-prototype.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/syntax/valid/shell.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-arguments.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-super.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-symbol-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-grammar-privatename-identifier-semantics-stringvalue.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names-asi.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-field-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-getter-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-usage.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-names.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt-by-classname.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods-with-fields.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods.js
 create mode 100644 js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-string-literal-names.js

(limited to 'js/src/tests/test262/language/expressions/class/elements')

diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-names.js
new file mode 100644
index 0000000000..a0f90044c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Computed property names (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  *m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..cc5533e1a0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Computed property symbol names (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  *m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..0514243bc3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names-asi.js
new file mode 100644
index 0000000000..2d904ce157
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Literal property names with ASI (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names.js
new file mode 100644
index 0000000000..be32d0c893
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Literal property names (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  *m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-field-usage.js
new file mode 100644
index 0000000000..3a524996c3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..ce60dc7da5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-usage.js
new file mode 100644
index 0000000000..79bf03a58f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-names.js
new file mode 100644
index 0000000000..88cd80617c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: private names (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..1d4cdff5f4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..bc15ad38ee
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..dc5a025334
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter.js
new file mode 100644
index 0000000000..56dacec911
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..aa79a70bed
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method.js
new file mode 100644
index 0000000000..fdf31f6aae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..de59113f44
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter.js
new file mode 100644
index 0000000000..50e5592fb7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5b5ce3825a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..638ff2fe4c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..4c76b7ce0c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..2b1b7b18f7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..4887896b35
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..c117ee6553
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..4e99f9f344
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..df25b1117b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0340957b7a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..148ab160b5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..02dcf7270f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..4c7e931dfd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..0bb8e20bd9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..7277f9d9c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..30b0ec270d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..c0f4c903f5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..de7794e8a5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..f55791c03b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..73134ff12a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-fields.js
new file mode 100644
index 0000000000..92803da0e0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: static private fields (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..102baf0ffd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: static private methods with fields (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods.js
new file mode 100644
index 0000000000..4b5ecf80f2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: static private methods (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-string-literal-names.js
new file mode 100644
index 0000000000..de2ed65bb5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-gen-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-gen.template
+/*---
+description: String literal names (field definitions after a generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  *m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-names.js
new file mode 100644
index 0000000000..312bf55a76
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Computed property names (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-symbol-names.js
new file mode 100644
index 0000000000..79b9ccacc0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Computed property symbol names (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..702d4c5d9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names-asi.js
new file mode 100644
index 0000000000..f270633391
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Literal property names with ASI (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names.js
new file mode 100644
index 0000000000..e898bab834
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Literal property names (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-field-usage.js
new file mode 100644
index 0000000000..49c27fde89
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..80de7e9351
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-usage.js
new file mode 100644
index 0000000000..ff4170b388
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-names.js
new file mode 100644
index 0000000000..78b0633a84
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: private names (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..bbb2297fdb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier.js
new file mode 100644
index 0000000000..3398af9902
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..7f44216145
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter.js
new file mode 100644
index 0000000000..e9d4598f4c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..54037b7999
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method.js
new file mode 100644
index 0000000000..9d2e1a6fa9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..6e794c741d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter.js
new file mode 100644
index 0000000000..ecb930ee24
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d240e2c7f1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..41d32c8a46
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..6703cbe7f4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..107b2c9194
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..69aaf83b4b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..175c830d5b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..730a73b776
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..9d4ae7c32f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d07326a04a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..e5be0db104
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..412354025e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..0e1becdd32
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..08ccb83881
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..af5d88f667
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..423d6330ab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..8e5701598e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..15ef55aded
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..c128c6b828
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..afc7f9d180
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-fields.js
new file mode 100644
index 0000000000..ad03a79b26
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: static private fields (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..3924e02456
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: static private methods with fields (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods.js
new file mode 100644
index 0000000000..e9145a8592
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: static private methods (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-string-literal-names.js
new file mode 100644
index 0000000000..408f69edfb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-method-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-method.template
+/*---
+description: String literal names (field definitions after a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-names.js
new file mode 100644
index 0000000000..a14b182570
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-names.js
@@ -0,0 +1,90 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Computed property names (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  static async *m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+    verifyProperty(c, "10", {
+      value: "meep",
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+    verifyProperty(c, "not initialized", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..26e232a2af
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-computed-symbol-names.js
@@ -0,0 +1,85 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Computed property symbol names (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  static async *m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+    verifyProperty(c, x, {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+    verifyProperty(c, y, {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..6fbc4f277a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.o(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names-asi.js
new file mode 100644
index 0000000000..a0d55cc8dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names-asi.js
@@ -0,0 +1,75 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Literal property names with ASI (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names.js
new file mode 100644
index 0000000000..3ecb835bbb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-literal-names.js
@@ -0,0 +1,88 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Literal property names (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  static async *m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: fn,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-field-usage.js
new file mode 100644
index 0000000000..28602cc113
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-field-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..1c538de790
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-getter-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-usage.js
new file mode 100644
index 0000000000..bef0fa191e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-method-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-names.js
new file mode 100644
index 0000000000..92271410d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-private-names.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: private names (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(c.x(), 42, "test 7");
+    assert.sameValue(c.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..a352ae52c4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,97 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..2b03a15262
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-field-identifier.js
@@ -0,0 +1,104 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    c.$ = 1;
+    c._ = 1;
+    c.\u{6F} = 1;
+    c.\u2118 = 1;
+    c.ZW_\u200C_NJ = 1;
+    c.ZW_\u200D_J = 1;
+
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..d16155e6f0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter-alt.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter.js
new file mode 100644
index 0000000000..2bcbef6ff4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-getter.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..0fe8bb0ab1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method.js
new file mode 100644
index 0000000000..16a728bd66
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-method.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..d01257d314
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter.js
new file mode 100644
index 0000000000..f800b0a464
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-private-setter.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..6a5a857160
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..5ff53d7133
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.℘(), 1);
+    assert.sameValue(c.ZW_‌_NJ(), 1);
+    assert.sameValue(c.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..9f4a3f393b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.\u2118(), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(), 1);
+    assert.sameValue(c.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..64e36e839f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-privatename-identifier.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1f3d9ffa6e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.o([1]).next(),
+      C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..0fc626524f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.\u{6F}([1]).next(),
+      C.\u2118([1]).next(),
+      C.ZW_\u200C_NJ([1]).next(),
+      C.ZW_\u200D_J([1]).next(),
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..3f6b03f5c0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.o(1),
+      C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..5d97498df1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.\u{6F}(1),
+      C.\u2118(1),
+      C.ZW_\u200C_NJ(1),
+      C.ZW_\u200D_J(1),
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..28e271606b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.o([1]).next().value, 1);
+    assert.sameValue(C.℘([1]).next().value, 1);
+    assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..0856d0745e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,135 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.\u{6F}([1]).next().value, 1);
+    assert.sameValue(C.\u2118([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..735ed993f0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..90ee64eed1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..67ed7752e0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..939655d6a2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..ee98bf49ec
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..4734f66d49
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..a17d7ef0d2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..7959a1f4eb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.\u2118(), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(), 1);
+    assert.sameValue(C.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..40bb50b88d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-fields.js
new file mode 100644
index 0000000000..7bb0935104
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-fields.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: static private fields (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..afb99c4596
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods-with-fields.js
@@ -0,0 +1,98 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: static private methods with fields (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 13");
+    assert.sameValue(C.y(), 43, "test 14");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods.js
new file mode 100644
index 0000000000..a9edf0a6c1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-static-private-methods.js
@@ -0,0 +1,85 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: static private methods (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 86, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-string-literal-names.js
new file mode 100644
index 0000000000..b0218d713c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-gen-string-literal-names.js
@@ -0,0 +1,95 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-gen.template
+/*---
+description: String literal names (field definitions after a static async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static async *m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: 39,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+    verifyProperty(c, "d", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-names.js
new file mode 100644
index 0000000000..a5b6081c80
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-names.js
@@ -0,0 +1,89 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Computed property names (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  static async m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+    verifyProperty(c, "10", {
+      value: "meep",
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+    verifyProperty(c, "not initialized", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-symbol-names.js
new file mode 100644
index 0000000000..6ecbbf053c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-computed-symbol-names.js
@@ -0,0 +1,84 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Computed property symbol names (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  static async m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+    verifyProperty(c, x, {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+    verifyProperty(c, y, {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..499c247b99
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.o(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names-asi.js
new file mode 100644
index 0000000000..3434f5e12e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names-asi.js
@@ -0,0 +1,74 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Literal property names with ASI (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names.js
new file mode 100644
index 0000000000..d9386b9a82
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-literal-names.js
@@ -0,0 +1,87 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Literal property names (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  static async m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: fn,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-field-usage.js
new file mode 100644
index 0000000000..88c0a7b5d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-field-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..bfc5277f7e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-getter-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-usage.js
new file mode 100644
index 0000000000..b70b404d00
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-method-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-names.js
new file mode 100644
index 0000000000..6bf6e22e98
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-private-names.js
@@ -0,0 +1,80 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: private names (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(c.x(), 42, "test 7");
+    assert.sameValue(c.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..88975710ca
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier-initializer.js
@@ -0,0 +1,96 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier.js
new file mode 100644
index 0000000000..12098b8cbf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-field-identifier.js
@@ -0,0 +1,103 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    c.$ = 1;
+    c._ = 1;
+    c.\u{6F} = 1;
+    c.\u2118 = 1;
+    c.ZW_\u200C_NJ = 1;
+    c.ZW_\u200D_J = 1;
+
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..3efa2deca1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter.js
new file mode 100644
index 0000000000..4d22b83ec0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-getter.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..1d474f8e32
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method-alt.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method.js
new file mode 100644
index 0000000000..b4d982edf2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-method.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..b3e44d1021
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter-alt.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter.js
new file mode 100644
index 0000000000..03306c9138
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-private-setter.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..27f7fe0e4d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..ebc1024767
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,112 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.℘(), 1);
+    assert.sameValue(c.ZW_‌_NJ(), 1);
+    assert.sameValue(c.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..52a2ec9121
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,112 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.\u2118(), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(), 1);
+    assert.sameValue(c.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..6dfc5953c3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-privatename-identifier.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..a8b607fb2e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.o([1]).next(),
+      C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..5b4cec9442
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.\u{6F}([1]).next(),
+      C.\u2118([1]).next(),
+      C.ZW_\u200C_NJ([1]).next(),
+      C.ZW_\u200D_J([1]).next(),
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..8794a1e298
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.o(1),
+      C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..963dbb794f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.\u{6F}(1),
+      C.\u2118(1),
+      C.ZW_\u200C_NJ(1),
+      C.ZW_\u200D_J(1),
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..671c51f719
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.o([1]).next().value, 1);
+    assert.sameValue(C.℘([1]).next().value, 1);
+    assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..020e97bc5c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.\u{6F}([1]).next().value, 1);
+    assert.sameValue(C.\u2118([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..90afa83559
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..7dd3b7564c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..777be7fe2a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5b66642ccf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..4154435db1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..5f78fad4e9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..109a2e6a8f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..39f7e39415
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.\u2118(), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(), 1);
+    assert.sameValue(C.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..46fd175b9a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-rs-static-privatename-identifier.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-fields.js
new file mode 100644
index 0000000000..595b0f0aba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-fields.js
@@ -0,0 +1,80 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: static private fields (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..c9dee88307
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods-with-fields.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: static private methods with fields (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 13");
+    assert.sameValue(C.y(), 43, "test 14");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods.js
new file mode 100644
index 0000000000..9eb08fb86a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-static-private-methods.js
@@ -0,0 +1,84 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: static private methods (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 86, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-string-literal-names.js
new file mode 100644
index 0000000000..3fe48591ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-async-method-string-literal-names.js
@@ -0,0 +1,94 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-async-method.template
+/*---
+description: String literal names (field definitions after a static async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static async m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+C.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: 39,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+    verifyProperty(c, "d", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-names.js
new file mode 100644
index 0000000000..5f5e5af9b8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Computed property names (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  static *m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..86292a8320
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Computed property symbol names (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  static *m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..a5be07efc8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names-asi.js
new file mode 100644
index 0000000000..8bb4cbc302
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Literal property names with ASI (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names.js
new file mode 100644
index 0000000000..0b1b4f66cc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Literal property names (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  static *m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-field-usage.js
new file mode 100644
index 0000000000..b08ac8f10c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..680be27014
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-usage.js
new file mode 100644
index 0000000000..f50eaa7298
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-names.js
new file mode 100644
index 0000000000..fea8c18863
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: private names (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..7f320842b4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..5c56a3a6da
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..0a0dbf7e79
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter.js
new file mode 100644
index 0000000000..391ec4e87a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..ccbe61d7cf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method.js
new file mode 100644
index 0000000000..7c7f2c433b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..bd70189cfe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter.js
new file mode 100644
index 0000000000..790e55f721
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1c0efb15fc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..e5e4ef0c26
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..9b8817d22e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..1d9fae5439
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..74d39c7b82
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..d7972b18dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..6b7e6113cf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..3356a99f69
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..26162ed838
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..01b4b65483
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1dc49a7c39
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..cd3312886f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..4a7147dfa7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1a8d652110
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..ee1863b571
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..00b0073d17
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..9d2365985a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..2a58bafbec
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..1ba011cc99
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-fields.js
new file mode 100644
index 0000000000..dd2f78692e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: static private fields (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..7651f517cd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: static private methods with fields (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods.js
new file mode 100644
index 0000000000..d7a0e0dc4d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: static private methods (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, generators, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-string-literal-names.js
new file mode 100644
index 0000000000..7193943878
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-gen-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-gen.template
+/*---
+description: String literal names (field definitions after a static generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static *m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m().next().value, 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-names.js
new file mode 100644
index 0000000000..e3eaece72d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Computed property names (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  static m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-symbol-names.js
new file mode 100644
index 0000000000..d49c4fa8bd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Computed property symbol names (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  static m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..c872d84d40
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names-asi.js
new file mode 100644
index 0000000000..c3ca5d5d88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Literal property names with ASI (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names.js
new file mode 100644
index 0000000000..db4d1cb9f3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Literal property names (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  static m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-field-usage.js
new file mode 100644
index 0000000000..2019227af4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..552d3db3f9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-usage.js
new file mode 100644
index 0000000000..c56147279b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-names.js
new file mode 100644
index 0000000000..52c6252526
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: private names (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..6d68367516
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier.js
new file mode 100644
index 0000000000..bee99a3641
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid FieldDefinition (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..5ad90ef549
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter.js
new file mode 100644
index 0000000000..ec31f0c68a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..d3567cd9db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method.js
new file mode 100644
index 0000000000..a3484e2a32
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..d34942579b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter.js
new file mode 100644
index 0000000000..88f7b1b5c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..ffc66d9b04
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..9f2396a3ac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..1e7ad47d53
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..f8116001f8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..f34378da23
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..2952a8e1ac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..a8543c96d0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..25d0503554
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5956956905
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..d773711399
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d519b09e49
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..6aa2b72549
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..bddff0248d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..3431c070a3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..ff3b2b15a6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..1fcdbd8935
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..edd26a72a2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..f365b867d9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..2217ef0a59
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: Valid Static PrivateName (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-fields.js
new file mode 100644
index 0000000000..c30f04f0db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: static private fields (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..44675ddb8c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: static private methods with fields (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods.js
new file mode 100644
index 0000000000..2d3c875078
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: static private methods (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-string-literal-names.js
new file mode 100644
index 0000000000..0255b3d131
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/after-same-line-static-method-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-static-method.template
+/*---
+description: String literal names (field definitions after a static method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(C.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "m"), false);
+
+verifyProperty(C, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..a2111e7654
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval-arrow-body.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; () => super.x;');
+};
+
+new C().x();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..b4e85f9217
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval-arrow-body.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; () => super["x"];');
+};
+
+new C().x();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..eeb377e07f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-arrow-body.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; () => super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..63aaa459a9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-arrow-body.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; () => super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..1880bb650a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-arrow-body.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; () => super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..fb49fcdf89
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('() => super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..da5dd3f9e3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('() => super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..69f3745ef7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('() => super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..a4c0817b78
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('() => super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..be90af7392
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('() => super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..f6f1b9d23e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-arguments.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-fields-eval-arrow-body.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+let executed = false;
+let C = class {
+  x = eval('executed = true; () => arguments;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..ecb00a1e22
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-direct-eval-err-contains-newtarget.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-eval-arrow-body.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = eval('executed = true; () => new.target;');
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x(), undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..03ff58e518
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var C = class {
+  x = (0, eval)('() => new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..ca9a5fbe5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; () => super.x;');
+  x() {
+    this.#x();
+  }
+};
+
+new C().x();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..147707983d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; () => super["x"];');
+  x() {
+    this.#x();
+  }
+};
+
+new C().x();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..0bc2407159
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; () => super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..6c437a74d2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,32 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; () => super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..c2a04a3879
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; () => super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..33cdc55d14
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('() => super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..1cf22b7932
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('() => super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..7fc242a613
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('() => super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..5f10f66fd3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('() => super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..19dd679db8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('() => super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..c2ad99d2ba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-arguments.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+var C = class {
+  #x = eval('() => arguments;');
+  x() {
+    this.#x();
+  }
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..6f46a1304f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-direct-eval-err-contains-newtarget.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-eval-arrow-body.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = eval('executed = true; () => new.target;');
+  x() {
+    this.#x();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x(), undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..df25503d49
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-body-private-indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-indirect-eval-arrow-body.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var C = class {
+  #x = (0, eval)('() => new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-arguments.js
new file mode 100644
index 0000000000..1ea8d75526
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-arrow-fnc.template
+/*---
+description: Syntax error if `arguments` used in class field (arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-super.js
new file mode 100644
index 0000000000..10c7a3642a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/arrow-fnc-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-arrow-fnc.template
+/*---
+description: Syntax error if `super()` used in class field (arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..e8a1c05f93
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    var \u0061wait;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier.js
new file mode 100644
index 0000000000..344ce7324e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-binding-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    var await;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..a47ba3eb0c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    void \u0061wait;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference.js
new file mode 100644
index 0000000000..1fa7293628
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-identifier-reference.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    void await;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..8b36523952
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    \u0061wait: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier.js
new file mode 100644
index 0000000000..19c66d2591
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/await-as-label-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    await: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/browser.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/shell.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..0eef9f3413
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    var yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier.js
new file mode 100644
index 0000000000..41d820fc96
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-binding-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    var yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..2e36378f86
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    void yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference.js
new file mode 100644
index 0000000000..4200607028
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-identifier-reference.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    void yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..ac2cbcaca6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    yi\u0065ld: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier.js
new file mode 100644
index 0000000000..c46bde97fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-as-label-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier.case
+// - src/async-generators/syntax/async-class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { static async *#gen() {
+    yield: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-spread-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-spread-strict-strict.js
new file mode 100644
index 0000000000..a1ab35e0ff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-spread-strict-strict.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-identifier-spread-strict.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [object-spread, async-iteration, class-static-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        return {
+             ...(function() {
+                var yield;
+                throw new Test262Error();
+             }()),
+          }
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-strict-strict.js
new file mode 100644
index 0000000000..57d7cec6c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-identifier-strict-strict.js
@@ -0,0 +1,55 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-identifier-strict.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+$DONOTEVALUATE();
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        (function() {
+            var yield;
+            throw new Test262Error();
+          }())
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-catch.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-catch.js
new file mode 100644
index 0000000000..778b57b0ae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-catch.js
@@ -0,0 +1,60 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-catch.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield Promise.reject(value) is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield Promise.reject(error);
+        yield "unreachable";
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}).catch(rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+});
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-async-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-async-iterator.js
new file mode 100644
index 0000000000..0ea8303bc1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-async-iterator.js
@@ -0,0 +1,66 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-for-await-of-async-iterator.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield * [Promise.reject(value)] is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+async function * readFile() {
+  yield Promise.reject(error);
+  yield "unreachable";
+}
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        for await (let line of readFile()) {
+          yield line;
+        }
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-sync-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-sync-iterator.js
new file mode 100644
index 0000000000..d94aa6a114
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-for-await-of-sync-iterator.js
@@ -0,0 +1,65 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-for-await-of-sync-iterator.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield Promise.reject(value) in for-await-of is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+let iterable = [
+  Promise.reject(error),
+  "unreachable"
+];
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        for await (let value of iterable) {
+          yield value;
+        }
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-async-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-async-iterator.js
new file mode 100644
index 0000000000..bd7df86a08
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-async-iterator.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-yield-star-async-iterator.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield * (async iterator) is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+async function * readFile() {
+  yield Promise.reject(error);
+  yield "unreachable";
+}
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield * readFile();
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}, $DONE).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-sync-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-sync-iterator.js
new file mode 100644
index 0000000000..536584fed2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next-yield-star-sync-iterator.js
@@ -0,0 +1,63 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-yield-star-sync-iterator.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield * (async iterator) is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+let iterable = [
+  Promise.reject(error),
+  "unreachable"
+];
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield * iterable;
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next.js
new file mode 100644
index 0000000000..9150bd8404
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-promise-reject-next.js
@@ -0,0 +1,60 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: yield Promise.reject(value) is treated as throw value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield Promise.reject(error);
+        yield "unreachable";
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-multiple.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-multiple.js
new file mode 100644
index 0000000000..09a5f2337b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-multiple.js
@@ -0,0 +1,66 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-arr-multiple.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Use yield value in a array spread position (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+includes: [compareArray.js]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+var item;
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield [...yield yield];
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next(false);
+item = iter.next(['a', 'b', 'c']);
+
+item.then(({ done, value }) => {
+  item = iter.next(value);
+
+  item.then(({ done, value }) => {
+    assert(compareArray(value, arr));
+    assert.sameValue(done, false);
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-single.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-single.js
new file mode 100644
index 0000000000..ff4f2a8b71
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-arr-single.js
@@ -0,0 +1,65 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-arr-single.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Use yield value in a array spread position (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield [...yield];
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next(false);
+var item = iter.next(arr);
+
+item.then(({ done, value }) => {
+  assert.notSameValue(value, arr, 'value is a new array');
+  assert(Array.isArray(value), 'value is an Array exotic object');
+  assert.sameValue(value.length, 3)
+  assert.sameValue(value[0], 'a');
+  assert.sameValue(value[1], 'b');
+  assert.sameValue(value[2], 'c');
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-obj.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-obj.js
new file mode 100644
index 0000000000..c845702066
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-spread-obj.js
@@ -0,0 +1,68 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-obj.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Use yield value in a object spread position (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [object-spread, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield {
+            ...yield,
+            y: 1,
+            ...yield yield,
+          };
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next();
+iter.next({ x: 42 });
+iter.next({ x: 'lol' });
+var item = iter.next({ y: 39 });
+
+item.then(({ done, value }) => {
+  assert.sameValue(value.x, 42);
+  assert.sameValue(value.y, 39);
+  assert.sameValue(Object.keys(value).length, 2);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-next.js
new file mode 100644
index 0000000000..310f25d84a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-next.js
@@ -0,0 +1,235 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-next.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Execution order for yield* with async iterator and next() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    
+---*/
+var log = [];
+var obj = {
+  get [Symbol.iterator]() {
+    log.push({ name: "get [Symbol.iterator]" });
+  },
+  get [Symbol.asyncIterator]() {
+    log.push({
+      name: "get [Symbol.asyncIterator]",
+      thisValue: this
+    });
+    return function() {
+      log.push({
+        name: "call [Symbol.asyncIterator]",
+        thisValue: this,
+        args: [...arguments]
+      });
+      var nextCount = 0;
+      return {
+        name: "asyncIterator",
+        get next() {
+          log.push({
+            name: "get next",
+            thisValue: this
+          });
+          return function() {
+            log.push({
+              name: "call next",
+              thisValue: this,
+              args: [...arguments]
+            });
+
+            nextCount++;
+            if (nextCount == 1) {
+              return {
+                name: "next-promise-1",
+                get then() {
+                  log.push({
+                    name: "get next then (1)",
+                    thisValue: this
+                  });
+                  return function(resolve) {
+                    log.push({
+                      name: "call next then (1)",
+                      thisValue: this,
+                      args: [...arguments]
+                    });
+
+                    resolve({
+                      name: "next-result-1",
+                      get value() {
+                        log.push({
+                          name: "get next value (1)",
+                          thisValue: this
+                        });
+                        return "next-value-1";
+                      },
+                      get done() {
+                        log.push({
+                          name: "get next done (1)",
+                          thisValue: this
+                        });
+                        return false;
+                      }
+                    });
+                  };
+                }
+              };
+            }
+
+            return {
+              name: "next-promise-2",
+              get then() {
+                log.push({
+                  name: "get next then (2)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call next then (2)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "next-result-2",
+                    get value() {
+                      log.push({
+                        name: "get next value (2)",
+                        thisValue: this
+                      });
+                      return "next-value-2";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get next done (2)",
+                        thisValue: this
+                      });
+                      return true;
+                    }
+                  });
+                };
+              }
+            };
+          };
+        }
+      };
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next("next-arg-1").then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+  assert.sameValue(log[1].thisValue, obj, "get [Symbol.asyncIterator] thisValue");
+
+  assert.sameValue(log[2].name, "call [Symbol.asyncIterator]");
+  assert.sameValue(log[2].thisValue, obj, "[Symbol.asyncIterator] thisValue");
+  assert.sameValue(log[2].args.length, 0, "[Symbol.asyncIterator] args.length");
+
+  assert.sameValue(log[3].name, "get next");
+  assert.sameValue(log[3].thisValue.name, "asyncIterator", "get next thisValue");
+
+  assert.sameValue(log[4].name, "call next");
+  assert.sameValue(log[4].thisValue.name, "asyncIterator", "next thisValue");
+  assert.sameValue(log[4].args.length, 1, "next args.length");
+  assert.sameValue(log[4].args[0], undefined, "next args[0]");
+
+  assert.sameValue(log[5].name, "get next then (1)");
+  assert.sameValue(log[5].thisValue.name, "next-promise-1", "get next then thisValue");
+
+  assert.sameValue(log[6].name, "call next then (1)");
+  assert.sameValue(log[6].thisValue.name, "next-promise-1", "next then thisValue");
+  assert.sameValue(log[6].args.length, 2, "next then args.length");
+  assert.sameValue(typeof log[6].args[0], "function", "next then args[0]");
+  assert.sameValue(typeof log[6].args[1], "function", "next then args[1]");
+
+  assert.sameValue(log[7].name, "get next done (1)");
+  assert.sameValue(log[7].thisValue.name, "next-result-1", "get next done thisValue");
+
+  assert.sameValue(log[8].name, "get next value (1)");
+  assert.sameValue(log[8].thisValue.name, "next-result-1", "get next value thisValue");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 9, "log.length");
+
+  iter.next("next-arg-2").then(v => {
+    assert.sameValue(log[9].name, "call next");
+    assert.sameValue(log[9].thisValue.name, "asyncIterator", "next thisValue");
+    assert.sameValue(log[9].args.length, 1, "next args.length");
+    assert.sameValue(log[9].args[0], "next-arg-2", "next args[0]");
+
+    assert.sameValue(log[10].name, "get next then (2)");
+    assert.sameValue(log[10].thisValue.name, "next-promise-2", "get next then thisValue");
+
+    assert.sameValue(log[11].name, "call next then (2)");
+    assert.sameValue(log[11].thisValue.name, "next-promise-2", "next then thisValue");
+    assert.sameValue(log[11].args.length, 2, "next then args.length");
+    assert.sameValue(typeof log[11].args[0], "function", "next then args[0]");
+    assert.sameValue(typeof log[11].args[1], "function", "next then args[1]");
+
+    assert.sameValue(log[12].name, "get next done (2)");
+    assert.sameValue(log[12].thisValue.name, "next-result-2", "get next done thisValue");
+
+    assert.sameValue(log[13].name, "get next value (2)");
+    assert.sameValue(log[13].thisValue.name, "next-result-2", "get next value thisValue");
+
+    assert.sameValue(log[14].name, "after yield*");
+    assert.sameValue(log[14].value, "next-value-2");
+
+    assert.sameValue(v.value, "return-value");
+    assert.sameValue(v.done, true);
+
+    assert.sameValue(log.length, 15, "log.length");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-return.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-return.js
new file mode 100644
index 0000000000..2efcd64cde
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-return.js
@@ -0,0 +1,251 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-return.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: execution order for yield* with async iterator and return() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, Symbol.asyncIterator, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      c. Else,
+        i. Assert: received.[[Type]] is return.
+        ii. Let return be ? GetMethod(iterator, "return").
+        iii. If return is undefined, return Completion(received).
+        iv. Let innerReturnResult be ? Call(return, iterator, « received.[[Value]] »).
+        v. If generatorKind is async, then set innerReturnResult to ? Await(innerReturnResult).
+        ...
+        vii. Let done be ? IteratorComplete(innerReturnResult).
+        viii. If done is true, then
+             1. Let value be ? IteratorValue(innerReturnResult).
+             2. If generatorKind is async, then set value to ? Await(value).
+             3. Return Completion{[[Type]]: return, [[Value]]: value, [[Target]]: empty}.
+        ix. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
+        ...
+
+    AsyncGeneratorYield ( value )
+    ...
+    8. Return ! AsyncGeneratorResolve(generator, value, false).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.asyncIterator]() {
+    var returnCount = 0;
+    return {
+      name: 'asyncIterator',
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get return() {
+        log.push({
+          name: "get return",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call return",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          returnCount++;
+          if (returnCount == 1) {
+            return {
+              name: "return-promise-1",
+              get then() {
+                log.push({
+                  name: "get return then (1)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call return then (1)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "return-result-1",
+                    get value() {
+                      log.push({
+                        name: "get return value (1)",
+                        thisValue: this
+                      });
+                      return "return-value-1";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get return done (1)",
+                        thisValue: this
+                      });
+                      return false;
+                    }
+                  });
+                };
+              }
+            };
+          }
+
+          return {
+            name: "return-promise-2",
+            get then() {
+              log.push({
+                name: "get return then (2)",
+                thisValue: this
+              });
+              return function(resolve) {
+                log.push({
+                  name: "call return then (2)",
+                  thisValue: this,
+                  args: [...arguments]
+                });
+
+                resolve({
+                  name: "return-result-2",
+                  get value() {
+                    log.push({
+                      name: "get return value (2)",
+                      thisValue: this
+                    });
+                    return "return-value-2";
+                  },
+                  get done() {
+                    log.push({
+                      name: "get return done (2)",
+                      thisValue: this
+                    });
+                    return true;
+                  }
+                });
+              };
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          yield* obj;
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.return("return-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get return");
+    assert.sameValue(log[2].thisValue.name, "asyncIterator", "get return thisValue");
+
+    assert.sameValue(log[3].name, "call return");
+    assert.sameValue(log[3].thisValue.name, "asyncIterator", "return thisValue");
+    assert.sameValue(log[3].args.length, 1, "return args.length");
+    assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+    assert.sameValue(log[4].name, "get return then (1)");
+    assert.sameValue(log[4].thisValue.name, "return-promise-1", "get return then thisValue");
+
+    assert.sameValue(log[5].name, "call return then (1)");
+    assert.sameValue(log[5].thisValue.name, "return-promise-1", "return then thisValue");
+    assert.sameValue(log[5].args.length, 2, "return then args.length");
+    assert.sameValue(typeof log[5].args[0], "function", "return then args[0]");
+    assert.sameValue(typeof log[5].args[1], "function", "return then args[1]");
+
+    assert.sameValue(log[6].name, "get return done (1)");
+    assert.sameValue(log[6].thisValue.name, "return-result-1", "get return done thisValue");
+
+    assert.sameValue(log[7].name, "get return value (1)");
+    assert.sameValue(log[7].thisValue.name, "return-result-1", "get return value thisValue");
+
+    assert.sameValue(v.value, "return-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 8, "log.length");
+
+    iter.return("return-arg-2").then(v => {
+      assert.sameValue(log[8].name, "get return");
+      assert.sameValue(log[8].thisValue.name, "asyncIterator", "get return thisValue");
+
+      assert.sameValue(log[9].name, "call return");
+      assert.sameValue(log[9].thisValue.name, "asyncIterator", "return thisValue");
+      assert.sameValue(log[9].args.length, 1, "return args.length");
+      assert.sameValue(log[9].args[0], "return-arg-2", "return args[0]");
+
+      assert.sameValue(log[10].name, "get return then (2)");
+      assert.sameValue(log[10].thisValue.name, "return-promise-2", "get return then thisValue");
+
+      assert.sameValue(log[11].name, "call return then (2)");
+      assert.sameValue(log[11].thisValue.name, "return-promise-2", "return then thisValue");
+      assert.sameValue(log[11].args.length, 2, "return then args.length");
+      assert.sameValue(typeof log[11].args[0], "function", "return then args[0]");
+      assert.sameValue(typeof log[11].args[1], "function", "return then args[1]");
+
+      assert.sameValue(log[12].name, "get return done (2)");
+      assert.sameValue(log[12].thisValue.name, "return-result-2", "get return done thisValue");
+
+      assert.sameValue(log[13].name, "get return value (2)");
+      assert.sameValue(log[13].thisValue.name, "return-result-2", "get return value thisValue");
+
+      assert.sameValue(v.value, "return-value-2");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 14, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-throw.js
new file mode 100644
index 0000000000..7d844b5e9a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-async-throw.js
@@ -0,0 +1,259 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: execution order for yield* with async iterator and throw() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, Symbol.asyncIterator, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      b. Else if received.[[Type]] is throw, then
+        i. Let throw be ? GetMethod(iterator, "throw").
+        ii. If throw is not undefined, then
+          1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+          2. If generatorKind is async, then set innerResult to ? Await(innerResult).
+          ...
+          5. Let done be ? IteratorComplete(innerResult).
+          6. If done is true, then
+            a. Let resultValue be Return ? IteratorValue(innerResult).
+            b. If generatorKind is async, then set resultValue to ? Await(resultValue).
+            c. Return resultValue.
+          7. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
+      ...
+
+    AsyncGeneratorYield ( value )
+
+    ...
+    8. Return ! AsyncGeneratorResolve(generator, value, false).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.asyncIterator]() {
+    var throwCount = 0;
+    return {
+      name: "asyncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get throw() {
+        log.push({
+          name: "get throw",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call throw",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          throwCount++;
+          if (throwCount == 1) {
+            return {
+              name: "throw-promise-1",
+              get then() {
+                log.push({
+                  name: "get throw then (1)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call throw then (1)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "throw-result-1",
+                    get value() {
+                      log.push({
+                        name: "get throw value (1)",
+                        thisValue: this
+                      });
+                      return "throw-value-1";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get throw done (1)",
+                        thisValue: this
+                      });
+                      return false;
+                    }
+                  });
+                };
+              }
+            };
+          }
+
+          return {
+            name: "throw-promise-2",
+            get then() {
+              log.push({
+                name: "get throw then (2)",
+                thisValue: this
+              });
+              return function(resolve) {
+                log.push({
+                  name: "call throw then (2)",
+                  thisValue: this,
+                  args: [...arguments]
+                });
+
+                resolve({
+                  name: "throw-result-2",
+                  get value() {
+                    log.push({
+                      name: "get throw value (2)",
+                      thisValue: this
+                    });
+                    return "throw-value-2";
+                  },
+                  get done() {
+                    log.push({
+                      name: "get throw done (2)",
+                      thisValue: this
+                    });
+                    return true;
+                  }
+                });
+              };
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.throw("throw-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get throw");
+    assert.sameValue(log[2].thisValue.name, "asyncIterator", "get throw thisValue");
+
+    assert.sameValue(log[3].name, "call throw");
+    assert.sameValue(log[3].thisValue.name, "asyncIterator", "throw thisValue");
+    assert.sameValue(log[3].args.length, 1, "throw args.length");
+    assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+    assert.sameValue(log[4].name, "get throw then (1)");
+    assert.sameValue(log[4].thisValue.name, "throw-promise-1", "get throw thisValue");
+
+    assert.sameValue(log[5].name, "call throw then (1)");
+    assert.sameValue(log[5].thisValue.name, "throw-promise-1", "throw thisValue");
+    assert.sameValue(log[5].args.length, 2, "throw then args.length");
+    assert.sameValue(typeof log[5].args[0], "function", "throw then args[0]");
+    assert.sameValue(typeof log[5].args[1], "function", "throw then args[1]");
+
+    assert.sameValue(log[6].name, "get throw done (1)");
+    assert.sameValue(log[6].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+    assert.sameValue(log[7].name, "get throw value (1)");
+    assert.sameValue(log[7].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+    assert.sameValue(v.value, "throw-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 8, "log.length");
+
+    iter.throw("throw-arg-2").then(v => {
+      assert.sameValue(log[8].name, "get throw");
+      assert.sameValue(log[8].thisValue.name, "asyncIterator", "get throw thisValue");
+
+      assert.sameValue(log[9].name, "call throw");
+      assert.sameValue(log[9].thisValue.name, "asyncIterator", "throw thisValue");
+      assert.sameValue(log[9].args.length, 1, "throw args.length");
+      assert.sameValue(log[9].args[0], "throw-arg-2", "throw args[0]");
+
+      assert.sameValue(log[10].name, "get throw then (2)");
+      assert.sameValue(log[10].thisValue.name, "throw-promise-2", "get throw thisValue");
+
+      assert.sameValue(log[11].name, "call throw then (2)");
+      assert.sameValue(log[11].thisValue.name, "throw-promise-2", "throw thisValue");
+      assert.sameValue(log[11].args.length, 2, "throw then args.length");
+      assert.sameValue(typeof log[11].args[0], "function", "throw then args[0]");
+      assert.sameValue(typeof log[11].args[1], "function", "throw then args[1]");
+
+      assert.sameValue(log[12].name, "get throw done (2)");
+      assert.sameValue(log[12].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+      assert.sameValue(log[13].name, "get throw value (2)");
+      assert.sameValue(log[13].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+      assert.sameValue(log[14].name, "after yield*");
+      assert.sameValue(log[14].value, "throw-value-2");
+
+      assert.sameValue(v.value, "return-value");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 15, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-expr-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-expr-abrupt.js
new file mode 100644
index 0000000000..f501265696
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-expr-abrupt.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-expr-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting yield* operand (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    ...
+
+---*/
+var obj = {};
+var abrupt = function() {
+  throw obj;
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* abrupt();
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, obj, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-get-abrupt.js
new file mode 100644
index 0000000000..4a62f21799
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-get-abrupt.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting [Symbol.asyncIterator] (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  get [Symbol.asyncIterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..f0ae7a5bed
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-boolean-throw.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (boolean) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: false
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-number-throw.js
new file mode 100644
index 0000000000..5b1f0a654e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-number-throw.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (number) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: 0
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-object-throw.js
new file mode 100644
index 0000000000..da90627d8d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-object-throw.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (object) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: {}
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-string-throw.js
new file mode 100644
index 0000000000..7133bfbd00
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-string-throw.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (string) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: ''
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..53380c2e88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-not-callable-symbol-throw.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (symbol) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: Symbol.asyncIterator
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-null-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-null-sync-get-abrupt.js
new file mode 100644
index 0000000000..ce6e5ec99c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-null-sync-get-abrupt.js
@@ -0,0 +1,95 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-null-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting @@iterator after null @@asyncIterator (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var calls = 0;
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  },
+  get [Symbol.asyncIterator]() {
+    calls += 1;
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+  assert.sameValue(calls, 1);
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-abrupt.js
new file mode 100644
index 0000000000..7b5bd6a4a5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-abrupt.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while calling [Symbol.asyncIterator] (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-boolean-throw.js
new file mode 100644
index 0000000000..deb99d1752
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-boolean-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-boolean-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - boolean (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return true;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-null-throw.js
new file mode 100644
index 0000000000..30b3e450b6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-null-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-null-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - null (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-number-throw.js
new file mode 100644
index 0000000000..a7bc46b891
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-number-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-number-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - number (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return 42;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-string-throw.js
new file mode 100644
index 0000000000..6b4e62a5a4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-string-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-string-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - string (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return '42';
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-symbol-throw.js
new file mode 100644
index 0000000000..9861b6f8d9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-symbol-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-symbol-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - symbol (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return Symbol.asyncIterator;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-undefined-throw.js
new file mode 100644
index 0000000000..27b7993870
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-returns-undefined-throw.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-undefined-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - undefined (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-undefined-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-undefined-sync-get-abrupt.js
new file mode 100644
index 0000000000..748bc08836
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-async-undefined-sync-get-abrupt.js
@@ -0,0 +1,95 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-undefined-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var calls = 0;
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  },
+  get [Symbol.asyncIterator]() {
+    calls += 1;
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+  assert.sameValue(calls, 1);
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-get-abrupt.js
new file mode 100644
index 0000000000..2dd03afed6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-get-abrupt.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting [Symbol.iterator] (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..d0d47bd89e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-boolean-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (boolean) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: false
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-number-throw.js
new file mode 100644
index 0000000000..0c4e3ba4bf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-number-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (number) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: 0
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-object-throw.js
new file mode 100644
index 0000000000..0fdce3ebdb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-object-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (object) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: {}
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-string-throw.js
new file mode 100644
index 0000000000..7c5aeb4747
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-string-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (string) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: ''
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..8b0b77531a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-not-callable-symbol-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (symbol) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: Symbol.iterator
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-abrupt.js
new file mode 100644
index 0000000000..cca75ce429
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-abrupt.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while calling [Symbol.iterator] (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  [Symbol.iterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-boolean-throw.js
new file mode 100644
index 0000000000..ab29d45332
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-boolean-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-boolean-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - boolean (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return true;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-null-throw.js
new file mode 100644
index 0000000000..fd87ab99eb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-null-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-null-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - null (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-number-throw.js
new file mode 100644
index 0000000000..a325a2f062
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-number-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-number-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - number (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return 0;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-string-throw.js
new file mode 100644
index 0000000000..7b0ba87519
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-string-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-string-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - string (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return '';
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-symbol-throw.js
new file mode 100644
index 0000000000..f8785b4f44
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-symbol-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-symbol-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - symbol (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return Symbol.iterator;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-undefined-throw.js
new file mode 100644
index 0000000000..28df44654c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-getiter-sync-returns-undefined-throw.js
@@ -0,0 +1,88 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-undefined-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - undefined (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-done-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-done-get-abrupt.js
new file mode 100644
index 0000000000..d86993a4f2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-done-get-abrupt.js
@@ -0,0 +1,89 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-done-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting done (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        v. Let done be ? IteratorComplete(innerResult).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          get done() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-returns-abrupt.js
new file mode 100644
index 0000000000..6fba3d4ce6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-returns-abrupt.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while calling next (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        throw reason;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-value-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-value-get-abrupt.js
new file mode 100644
index 0000000000..c3e4d36051
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-call-value-get-abrupt.js
@@ -0,0 +1,91 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-value-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting value (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        vi. If done is true, then
+           1. Return ? IteratorValue(innerResult).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          done: true,
+          get value() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-get-abrupt.js
new file mode 100644
index 0000000000..dd00f32fb9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-get-abrupt.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Abrupt completion while getting next (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      get next() {
+        throw reason;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-non-object-ignores-then.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-non-object-ignores-then.js
new file mode 100644
index 0000000000..be3fa67206
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-non-object-ignores-then.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-non-object-ignores-then.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: If next() value is not-object, do not access respective then property (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+
+---*/
+Number.prototype.then = function() {
+  throw new Test262Error('Number#then should not be used');
+};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return 42;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, 'TypeError');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..14226145cb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-boolean-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - boolean (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: true
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-null-throw.js
new file mode 100644
index 0000000000..cf88e4deaf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-null-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-null-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - null (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: null
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-number-throw.js
new file mode 100644
index 0000000000..8664340166
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-number-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - number (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: 42
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-object-throw.js
new file mode 100644
index 0000000000..bb37ed413e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-object-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - object (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: {}
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-string-throw.js
new file mode 100644
index 0000000000..36a54cd37c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-string-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - string (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: ''
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..504d6b08c0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-symbol-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - symbol (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: Symbol('oi')
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-undefined-throw.js
new file mode 100644
index 0000000000..b580df8292
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-not-callable-undefined-throw.js
@@ -0,0 +1,78 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-undefined-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Not-callable next value in a yield star position - undefined (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: undefined
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-get-abrupt.js
new file mode 100644
index 0000000000..bc8647ba0b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-get-abrupt.js
@@ -0,0 +1,105 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-get-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Return abrupt after getting next().then (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    8. Let then be Get(resolution, "then").
+    ...
+    10. Get thenAction be then.[[Value]].
+    ...
+    12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
+        resolution, thenAction »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          get then() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-boolean-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-boolean-fulfillpromise.js
new file mode 100644
index 0000000000..28a5fb83c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-boolean-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-boolean-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (boolean) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: true,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-null-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-null-fulfillpromise.js
new file mode 100644
index 0000000000..49cd9d821d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-null-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-null-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (null) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: null,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-number-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-number-fulfillpromise.js
new file mode 100644
index 0000000000..3d16feca0d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-number-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-number-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (number) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: 39,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-object-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-object-fulfillpromise.js
new file mode 100644
index 0000000000..36f92b9b8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-object-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-object-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (object) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: {},
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-string-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-string-fulfillpromise.js
new file mode 100644
index 0000000000..98fce42819
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-string-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-string-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (string) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: '',
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-symbol-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-symbol-fulfillpromise.js
new file mode 100644
index 0000000000..33312fd6e5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-symbol-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-symbol-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (symbol) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: Symbol('oi'),
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-undefined-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-undefined-fulfillpromise.js
new file mode 100644
index 0000000000..5cf1bd0ed8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-non-callable-undefined-fulfillpromise.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-undefined-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (undefined) (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: undefined,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-returns-abrupt.js
new file mode 100644
index 0000000000..90079d1aee
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-next-then-returns-abrupt.js
@@ -0,0 +1,105 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: Return abrupt after calling next().then (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    8. Let then be Get(resolution, "then").
+    ...
+    10. Get thenAction be then.[[Value]].
+    ...
+    12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
+        resolution, thenAction »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-next.js
new file mode 100644
index 0000000000..71883cdd1e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-next.js
@@ -0,0 +1,238 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-next.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: execution order for yield* with sync iterator and next() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    5. Let received be NormalCompletion(undefined).
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        v. Let done be ? IteratorComplete(innerResult).
+        vi. If done is true, then
+           1. Return ? IteratorValue(innerResult).
+        vii. Let received be GeneratorYield(innerResult).
+      ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    %AsyncFromSyncIteratorPrototype%.next ( value )
+
+    ...
+    5. Let nextResult be IteratorNext(syncIterator, value).
+    ...
+    7. Let nextValue be IteratorValue(nextResult).
+    ...
+    9. Let nextDone be IteratorComplete(nextResult).
+    ...
+    12. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+        « nextValue »).
+    ...
+    14. Set onFulfilled.[[Done]] to nextDone.
+    15. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+    Async Iterator Value Unwrap Functions
+
+    1. Return ! CreateIterResultObject(value, F.[[Done]]).
+
+---*/
+var log = [];
+var obj = {
+  get [Symbol.iterator]() {
+    log.push({
+      name: "get [Symbol.iterator]",
+      thisValue: this
+    });
+    return function() {
+      log.push({
+        name: "call [Symbol.iterator]",
+        thisValue: this,
+        args: [...arguments]
+      });
+      var nextCount = 0;
+      return {
+        name: "syncIterator",
+        get next() {
+          log.push({
+            name: "get next",
+            thisValue: this
+          });
+          return function() {
+            log.push({
+              name: "call next",
+              thisValue: this,
+              args: [...arguments]
+            });
+
+            nextCount++;
+            if (nextCount == 1) {
+              return {
+                name: "next-result-1",
+                get value() {
+                  log.push({
+                    name: "get next value (1)",
+                    thisValue: this
+                  });
+                  return "next-value-1";
+                },
+                get done() {
+                  log.push({
+                    name: "get next done (1)",
+                    thisValue: this
+                  });
+                  return false;
+                }
+              };
+            }
+
+            return {
+              name: "next-result-2",
+              get value() {
+                log.push({
+                  name: "get next value (2)",
+                  thisValue: this
+                });
+                return "next-value-2";
+              },
+              get done() {
+                log.push({
+                  name: "get next done (2)",
+                  thisValue: this
+                });
+                return true;
+              }
+            };
+          };
+        }
+      };
+    };
+  },
+  get [Symbol.asyncIterator]() {
+    log.push({ name: "get [Symbol.asyncIterator]" });
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next("next-arg-1").then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+
+  assert.sameValue(log[2].name, "get [Symbol.iterator]");
+  assert.sameValue(log[2].thisValue, obj, "get [Symbol.iterator] thisValue");
+
+  assert.sameValue(log[3].name, "call [Symbol.iterator]");
+  assert.sameValue(log[3].thisValue, obj, "[Symbol.iterator] thisValue");
+  assert.sameValue(log[3].args.length, 0, "[Symbol.iterator] args.length");
+
+  assert.sameValue(log[4].name, "get next");
+  assert.sameValue(log[4].thisValue.name, "syncIterator", "get next thisValue");
+
+  assert.sameValue(log[5].name, "call next");
+  assert.sameValue(log[5].thisValue.name, "syncIterator", "next thisValue");
+  assert.sameValue(log[5].args.length, 1, "next args.length");
+  assert.sameValue(log[5].args[0], undefined, "next args[0]");
+
+  assert.sameValue(log[6].name, "get next done (1)");
+  assert.sameValue(log[6].thisValue.name, "next-result-1", "get next done thisValue");
+
+  assert.sameValue(log[7].name, "get next value (1)");
+  assert.sameValue(log[7].thisValue.name, "next-result-1", "get next value thisValue");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 8, "log.length");
+
+  iter.next("next-arg-2").then(v => {
+    assert.sameValue(log[8].name, "call next");
+    assert.sameValue(log[8].thisValue.name, "syncIterator", "next thisValue");
+    assert.sameValue(log[8].args.length, 1, "next args.length");
+    assert.sameValue(log[8].args[0], "next-arg-2", "next args[0]");
+
+    assert.sameValue(log[9].name, "get next done (2)");
+    assert.sameValue(log[9].thisValue.name, "next-result-2", "get next done thisValue");
+
+    assert.sameValue(log[10].name, "get next value (2)");
+    assert.sameValue(log[10].thisValue.name, "next-result-2", "get next value thisValue");
+
+    assert.sameValue(log[11].name, "after yield*");
+    assert.sameValue(log[11].value, "next-value-2");
+
+    assert.sameValue(v.value, "return-value");
+    assert.sameValue(v.done, true);
+
+    assert.sameValue(log.length, 12, "log.length");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-return.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-return.js
new file mode 100644
index 0000000000..5ac67ce04d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-return.js
@@ -0,0 +1,213 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-return.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: execution order for yield* with sync iterator and return() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      c. Else,
+        i. Assert: received.[[Type]] is return.
+        ii. Let return be ? GetMethod(iterator, "return").
+        iii. If return is undefined, return Completion(received).
+        iv. Let innerReturnResult be ? Call(return, iterator,
+            « received.[[Value]] »).
+        v. If generatorKind is async, then set innerReturnResult to
+           ? Await(innerReturnResult).
+        ...
+        vii. Let done be ? IteratorComplete(innerReturnResult).
+        viii. If done is true, then
+             1. Let value be ? IteratorValue(innerReturnResult).
+             2. Return Completion{[[Type]]: return, [[Value]]: value,
+                [[Target]]: empty}.
+        ix. Let received be GeneratorYield(innerResult).
+
+    %AsyncFromSyncIteratorPrototype%.return ( value )
+
+    5. Let return be GetMethod(syncIterator, "return").
+    ...
+    ...
+    8. Let returnResult be Call(return, syncIterator, « value »).
+    ...
+    11. Let returnValue be IteratorValue(returnResult).
+    ..
+    13. Let returnDone be IteratorComplete(returnResult).
+    ...
+    16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined, « returnValue »).
+    ...
+    18. Set onFulfilled.[[Done]] to returnDone.
+    19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.iterator]() {
+    var returnCount = 0;
+    return {
+      name: "syncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get return() {
+        log.push({
+          name: "get return",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call return",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          returnCount++;
+          if (returnCount == 1) {
+            return {
+              name: "return-result-1",
+              get value() {
+                log.push({
+                  name: "get return value (1)",
+                  thisValue: this
+                });
+                return "return-value-1";
+              },
+              get done() {
+                log.push({
+                  name: "get return done (1)",
+                  thisValue: this
+                });
+                return false;
+              }
+            };
+          }
+
+          return {
+            name: "return-result-2",
+            get value() {
+              log.push({
+                name: "get return value (2)",
+                thisValue: this
+              });
+              return "return-value-2";
+            },
+            get done() {
+              log.push({
+                name: "get return done (2)",
+                thisValue: this
+              });
+              return true;
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          yield* obj;
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.return("return-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get return");
+    assert.sameValue(log[2].thisValue.name, "syncIterator", "get return thisValue");
+
+    assert.sameValue(log[3].name, "call return");
+    assert.sameValue(log[3].thisValue.name, "syncIterator", "return thisValue");
+    assert.sameValue(log[3].args.length, 1, "return args.length");
+    assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+    assert.sameValue(log[4].name, "get return done (1)");
+    assert.sameValue(log[4].thisValue.name, "return-result-1", "get return done thisValue");
+
+    assert.sameValue(log[5].name, "get return value (1)");
+    assert.sameValue(log[5].thisValue.name, "return-result-1", "get return value thisValue");
+
+    assert.sameValue(v.value, "return-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 6, "log.length");
+
+    iter.return().then(v => {
+      assert.sameValue(log[6].name, "get return");
+      assert.sameValue(log[6].thisValue.name, "syncIterator", "get return thisValue");
+
+      assert.sameValue(log[7].name, "call return");
+      assert.sameValue(log[7].thisValue.name, "syncIterator", "get return thisValue");
+      assert.sameValue(log[7].args.length, 1, "return args.length");
+      assert.sameValue(log[7].args[0], undefined, "return args[0]");
+
+      assert.sameValue(log[8].name, "get return done (2)");
+      assert.sameValue(log[8].thisValue.name, "return-result-2", "get return done thisValue");
+
+      assert.sameValue(log[9].name, "get return value (2)");
+      assert.sameValue(log[9].thisValue.name, "return-result-2", "get return value thisValue");
+
+      assert.sameValue(v.value, "return-value-2");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 10, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-throw.js
new file mode 100644
index 0000000000..ad992f6d8e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method-static/yield-star-sync-throw.js
@@ -0,0 +1,219 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-throw.case
+// - src/async-generators/default/async-class-expr-static-private-method.template
+/*---
+description: execution order for yield* with sync iterator and throw() (Static async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      b. Else if received.[[Type]] is throw, then
+        i. Let throw be ? GetMethod(iterator, "throw").
+        ii. If throw is not undefined, then
+          1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+          2. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+          ...
+          5. Let done be ? IteratorComplete(innerResult).
+          6. If done is true, then
+            a. Return ? IteratorValue(innerResult).
+          7. Let received be GeneratorYield(innerResult).
+      ...
+
+    %AsyncFromSyncIteratorPrototype%.throw ( value )
+
+    ...
+    5. Let throw be GetMethod(syncIterator, "throw").
+    ...
+    8. Let throwResult be Call(throw, syncIterator, « value »).
+    ...
+    11. Let throwValue be IteratorValue(throwResult).
+    ...
+    13. Let throwDone be IteratorComplete(throwResult).
+    ...
+    16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+        « throwValue »).
+    ...
+    18. Set onFulfilled.[[Done]] to throwDone.
+    19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.iterator]() {
+    var throwCount = 0;
+    return {
+      name: "syncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get throw() {
+        log.push({
+          name: "get throw",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call throw",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          throwCount++;
+          if (throwCount == 1) {
+            return {
+              name: "throw-result-1",
+              get value() {
+                log.push({
+                  name: "get throw value (1)",
+                  thisValue: this
+                });
+                return "throw-value-1";
+              },
+              get done() {
+                log.push({
+                  name: "get throw done (1)",
+                  thisValue: this
+                });
+                return false;
+              }
+            };
+          }
+
+          return {
+            name: "throw-result-2",
+            get value() {
+              log.push({
+                name: "get throw value (2)",
+                thisValue: this
+              });
+              return "throw-value-2";
+            },
+            get done() {
+              log.push({
+                name: "get throw done (2)",
+                thisValue: this
+              });
+              return true;
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    static async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.throw("throw-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get throw");
+    assert.sameValue(log[2].thisValue.name, "syncIterator", "get throw thisValue");
+
+    assert.sameValue(log[3].name, "call throw");
+    assert.sameValue(log[3].thisValue.name, "syncIterator", "throw thisValue");
+    assert.sameValue(log[3].args.length, 1, "throw args.length");
+    assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+    assert.sameValue(log[4].name, "get throw done (1)");
+    assert.sameValue(log[4].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+    assert.sameValue(log[5].name, "get throw value (1)");
+    assert.sameValue(log[5].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+    assert.sameValue(v.value, "throw-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 6, "log.length");
+
+    iter.throw().then(v => {
+      assert.sameValue(log[6].name, "get throw");
+      assert.sameValue(log[6].thisValue.name, "syncIterator", "get throw thisValue");
+
+      assert.sameValue(log[7].name, "call throw");
+      assert.sameValue(log[7].thisValue.name, "syncIterator", "throw thisValue");
+      assert.sameValue(log[7].args.length, 1, "throw args.length");
+      assert.sameValue(log[7].args[0], undefined, "throw args[0]");
+
+      assert.sameValue(log[8].name, "get throw done (2)");
+      assert.sameValue(log[8].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+      assert.sameValue(log[9].name, "get throw value (2)");
+      assert.sameValue(log[9].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+      assert.sameValue(log[10].name, "after yield*");
+      assert.sameValue(log[10].value, "throw-value-2");
+
+      assert.sameValue(v.value, "return-value");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 11, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..256d7d3cdf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    var \u0061wait;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier.js
new file mode 100644
index 0000000000..218567f976
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-binding-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    var await;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..ebe80e25c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    void \u0061wait;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference.js
new file mode 100644
index 0000000000..433d2e6368
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-identifier-reference.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    void await;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..5b0a800e9c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    \u0061wait: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier.js
new file mode 100644
index 0000000000..484ad3b38f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/await-as-label-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    await: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/browser.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/shell.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..cd20234b15
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    var yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier.js
new file mode 100644
index 0000000000..224924efff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-binding-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    var yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..0a25c04010
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    void yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference.js
new file mode 100644
index 0000000000..d5b1996642
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-identifier-reference.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    void yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..1c6a0c767e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier-escaped.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    yi\u0065ld: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier.js
new file mode 100644
index 0000000000..66f978579b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-as-label-identifier.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier.case
+// - src/async-generators/syntax/async-class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async generator private method as a ClassExpression element)
+esid: prod-AsyncGeneratorMethod
+features: [async-iteration, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class { async *#gen() {
+    yield: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-spread-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-spread-strict-strict.js
new file mode 100644
index 0000000000..15a8093555
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-spread-strict-strict.js
@@ -0,0 +1,68 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-identifier-spread-strict.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [object-spread, async-iteration, class-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        return {
+             ...(function() {
+                var yield;
+                throw new Test262Error();
+             }()),
+          }
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-strict-strict.js
new file mode 100644
index 0000000000..4d6e3d4325
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-identifier-strict-strict.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-identifier-strict.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+$DONOTEVALUATE();
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        (function() {
+            var yield;
+            throw new Test262Error();
+          }())
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-catch.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-catch.js
new file mode 100644
index 0000000000..8ed4325ae7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-catch.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-catch.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield Promise.reject(value) is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield Promise.reject(error);
+        yield "unreachable";
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}).catch(rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+});
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-async-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-async-iterator.js
new file mode 100644
index 0000000000..27427baa78
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-async-iterator.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-for-await-of-async-iterator.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield * [Promise.reject(value)] is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+async function * readFile() {
+  yield Promise.reject(error);
+  yield "unreachable";
+}
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        for await (let line of readFile()) {
+          yield line;
+        }
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js
new file mode 100644
index 0000000000..91e3d5651e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-for-await-of-sync-iterator.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield Promise.reject(value) in for-await-of is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+let iterable = [
+  Promise.reject(error),
+  "unreachable"
+];
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        for await (let value of iterable) {
+          yield value;
+        }
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-async-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-async-iterator.js
new file mode 100644
index 0000000000..8607db9d8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-async-iterator.js
@@ -0,0 +1,68 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-yield-star-async-iterator.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield * (async iterator) is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+async function * readFile() {
+  yield Promise.reject(error);
+  yield "unreachable";
+}
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield * readFile();
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}, $DONE).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-sync-iterator.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-sync-iterator.js
new file mode 100644
index 0000000000..4ca7f5999d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next-yield-star-sync-iterator.js
@@ -0,0 +1,67 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-yield-star-sync-iterator.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield * (async iterator) is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+let iterable = [
+  Promise.reject(error),
+  "unreachable"
+];
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield * iterable;
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next.js
new file mode 100644
index 0000000000..ade3a5d9df
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-promise-reject-next.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: yield Promise.reject(value) is treated as throw value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield Promise.reject(error);
+        yield "unreachable";
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-multiple.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-multiple.js
new file mode 100644
index 0000000000..528c8974f3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-multiple.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-arr-multiple.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Use yield value in a array spread position (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+includes: [compareArray.js]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+var item;
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield [...yield yield];
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next(false);
+item = iter.next(['a', 'b', 'c']);
+
+item.then(({ done, value }) => {
+  item = iter.next(value);
+
+  item.then(({ done, value }) => {
+    assert(compareArray(value, arr));
+    assert.sameValue(done, false);
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-single.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-single.js
new file mode 100644
index 0000000000..37751976eb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-arr-single.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-arr-single.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Use yield value in a array spread position (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield [...yield];
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next(false);
+var item = iter.next(arr);
+
+item.then(({ done, value }) => {
+  assert.notSameValue(value, arr, 'value is a new array');
+  assert(Array.isArray(value), 'value is an Array exotic object');
+  assert.sameValue(value.length, 3)
+  assert.sameValue(value[0], 'a');
+  assert.sameValue(value[1], 'b');
+  assert.sameValue(value[2], 'c');
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-obj.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-obj.js
new file mode 100644
index 0000000000..09e509253a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-spread-obj.js
@@ -0,0 +1,72 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-obj.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Use yield value in a object spread position (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [object-spread, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield {
+            ...yield,
+            y: 1,
+            ...yield yield,
+          };
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next();
+iter.next({ x: 42 });
+iter.next({ x: 'lol' });
+var item = iter.next({ y: 39 });
+
+item.then(({ done, value }) => {
+  assert.sameValue(value.x, 42);
+  assert.sameValue(value.y, 39);
+  assert.sameValue(Object.keys(value).length, 2);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-next.js
new file mode 100644
index 0000000000..49767e7039
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-next.js
@@ -0,0 +1,239 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-next.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Execution order for yield* with async iterator and next() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    
+---*/
+var log = [];
+var obj = {
+  get [Symbol.iterator]() {
+    log.push({ name: "get [Symbol.iterator]" });
+  },
+  get [Symbol.asyncIterator]() {
+    log.push({
+      name: "get [Symbol.asyncIterator]",
+      thisValue: this
+    });
+    return function() {
+      log.push({
+        name: "call [Symbol.asyncIterator]",
+        thisValue: this,
+        args: [...arguments]
+      });
+      var nextCount = 0;
+      return {
+        name: "asyncIterator",
+        get next() {
+          log.push({
+            name: "get next",
+            thisValue: this
+          });
+          return function() {
+            log.push({
+              name: "call next",
+              thisValue: this,
+              args: [...arguments]
+            });
+
+            nextCount++;
+            if (nextCount == 1) {
+              return {
+                name: "next-promise-1",
+                get then() {
+                  log.push({
+                    name: "get next then (1)",
+                    thisValue: this
+                  });
+                  return function(resolve) {
+                    log.push({
+                      name: "call next then (1)",
+                      thisValue: this,
+                      args: [...arguments]
+                    });
+
+                    resolve({
+                      name: "next-result-1",
+                      get value() {
+                        log.push({
+                          name: "get next value (1)",
+                          thisValue: this
+                        });
+                        return "next-value-1";
+                      },
+                      get done() {
+                        log.push({
+                          name: "get next done (1)",
+                          thisValue: this
+                        });
+                        return false;
+                      }
+                    });
+                  };
+                }
+              };
+            }
+
+            return {
+              name: "next-promise-2",
+              get then() {
+                log.push({
+                  name: "get next then (2)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call next then (2)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "next-result-2",
+                    get value() {
+                      log.push({
+                        name: "get next value (2)",
+                        thisValue: this
+                      });
+                      return "next-value-2";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get next done (2)",
+                        thisValue: this
+                      });
+                      return true;
+                    }
+                  });
+                };
+              }
+            };
+          };
+        }
+      };
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next("next-arg-1").then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+  assert.sameValue(log[1].thisValue, obj, "get [Symbol.asyncIterator] thisValue");
+
+  assert.sameValue(log[2].name, "call [Symbol.asyncIterator]");
+  assert.sameValue(log[2].thisValue, obj, "[Symbol.asyncIterator] thisValue");
+  assert.sameValue(log[2].args.length, 0, "[Symbol.asyncIterator] args.length");
+
+  assert.sameValue(log[3].name, "get next");
+  assert.sameValue(log[3].thisValue.name, "asyncIterator", "get next thisValue");
+
+  assert.sameValue(log[4].name, "call next");
+  assert.sameValue(log[4].thisValue.name, "asyncIterator", "next thisValue");
+  assert.sameValue(log[4].args.length, 1, "next args.length");
+  assert.sameValue(log[4].args[0], undefined, "next args[0]");
+
+  assert.sameValue(log[5].name, "get next then (1)");
+  assert.sameValue(log[5].thisValue.name, "next-promise-1", "get next then thisValue");
+
+  assert.sameValue(log[6].name, "call next then (1)");
+  assert.sameValue(log[6].thisValue.name, "next-promise-1", "next then thisValue");
+  assert.sameValue(log[6].args.length, 2, "next then args.length");
+  assert.sameValue(typeof log[6].args[0], "function", "next then args[0]");
+  assert.sameValue(typeof log[6].args[1], "function", "next then args[1]");
+
+  assert.sameValue(log[7].name, "get next done (1)");
+  assert.sameValue(log[7].thisValue.name, "next-result-1", "get next done thisValue");
+
+  assert.sameValue(log[8].name, "get next value (1)");
+  assert.sameValue(log[8].thisValue.name, "next-result-1", "get next value thisValue");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 9, "log.length");
+
+  iter.next("next-arg-2").then(v => {
+    assert.sameValue(log[9].name, "call next");
+    assert.sameValue(log[9].thisValue.name, "asyncIterator", "next thisValue");
+    assert.sameValue(log[9].args.length, 1, "next args.length");
+    assert.sameValue(log[9].args[0], "next-arg-2", "next args[0]");
+
+    assert.sameValue(log[10].name, "get next then (2)");
+    assert.sameValue(log[10].thisValue.name, "next-promise-2", "get next then thisValue");
+
+    assert.sameValue(log[11].name, "call next then (2)");
+    assert.sameValue(log[11].thisValue.name, "next-promise-2", "next then thisValue");
+    assert.sameValue(log[11].args.length, 2, "next then args.length");
+    assert.sameValue(typeof log[11].args[0], "function", "next then args[0]");
+    assert.sameValue(typeof log[11].args[1], "function", "next then args[1]");
+
+    assert.sameValue(log[12].name, "get next done (2)");
+    assert.sameValue(log[12].thisValue.name, "next-result-2", "get next done thisValue");
+
+    assert.sameValue(log[13].name, "get next value (2)");
+    assert.sameValue(log[13].thisValue.name, "next-result-2", "get next value thisValue");
+
+    assert.sameValue(log[14].name, "after yield*");
+    assert.sameValue(log[14].value, "next-value-2");
+
+    assert.sameValue(v.value, "return-value");
+    assert.sameValue(v.done, true);
+
+    assert.sameValue(log.length, 15, "log.length");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-return.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-return.js
new file mode 100644
index 0000000000..67c932b6f6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-return.js
@@ -0,0 +1,255 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-return.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: execution order for yield* with async iterator and return() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, Symbol.asyncIterator, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      c. Else,
+        i. Assert: received.[[Type]] is return.
+        ii. Let return be ? GetMethod(iterator, "return").
+        iii. If return is undefined, return Completion(received).
+        iv. Let innerReturnResult be ? Call(return, iterator, « received.[[Value]] »).
+        v. If generatorKind is async, then set innerReturnResult to ? Await(innerReturnResult).
+        ...
+        vii. Let done be ? IteratorComplete(innerReturnResult).
+        viii. If done is true, then
+             1. Let value be ? IteratorValue(innerReturnResult).
+             2. If generatorKind is async, then set value to ? Await(value).
+             3. Return Completion{[[Type]]: return, [[Value]]: value, [[Target]]: empty}.
+        ix. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
+        ...
+
+    AsyncGeneratorYield ( value )
+    ...
+    8. Return ! AsyncGeneratorResolve(generator, value, false).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.asyncIterator]() {
+    var returnCount = 0;
+    return {
+      name: 'asyncIterator',
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get return() {
+        log.push({
+          name: "get return",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call return",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          returnCount++;
+          if (returnCount == 1) {
+            return {
+              name: "return-promise-1",
+              get then() {
+                log.push({
+                  name: "get return then (1)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call return then (1)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "return-result-1",
+                    get value() {
+                      log.push({
+                        name: "get return value (1)",
+                        thisValue: this
+                      });
+                      return "return-value-1";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get return done (1)",
+                        thisValue: this
+                      });
+                      return false;
+                    }
+                  });
+                };
+              }
+            };
+          }
+
+          return {
+            name: "return-promise-2",
+            get then() {
+              log.push({
+                name: "get return then (2)",
+                thisValue: this
+              });
+              return function(resolve) {
+                log.push({
+                  name: "call return then (2)",
+                  thisValue: this,
+                  args: [...arguments]
+                });
+
+                resolve({
+                  name: "return-result-2",
+                  get value() {
+                    log.push({
+                      name: "get return value (2)",
+                      thisValue: this
+                    });
+                    return "return-value-2";
+                  },
+                  get done() {
+                    log.push({
+                      name: "get return done (2)",
+                      thisValue: this
+                    });
+                    return true;
+                  }
+                });
+              };
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          yield* obj;
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.return("return-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get return");
+    assert.sameValue(log[2].thisValue.name, "asyncIterator", "get return thisValue");
+
+    assert.sameValue(log[3].name, "call return");
+    assert.sameValue(log[3].thisValue.name, "asyncIterator", "return thisValue");
+    assert.sameValue(log[3].args.length, 1, "return args.length");
+    assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+    assert.sameValue(log[4].name, "get return then (1)");
+    assert.sameValue(log[4].thisValue.name, "return-promise-1", "get return then thisValue");
+
+    assert.sameValue(log[5].name, "call return then (1)");
+    assert.sameValue(log[5].thisValue.name, "return-promise-1", "return then thisValue");
+    assert.sameValue(log[5].args.length, 2, "return then args.length");
+    assert.sameValue(typeof log[5].args[0], "function", "return then args[0]");
+    assert.sameValue(typeof log[5].args[1], "function", "return then args[1]");
+
+    assert.sameValue(log[6].name, "get return done (1)");
+    assert.sameValue(log[6].thisValue.name, "return-result-1", "get return done thisValue");
+
+    assert.sameValue(log[7].name, "get return value (1)");
+    assert.sameValue(log[7].thisValue.name, "return-result-1", "get return value thisValue");
+
+    assert.sameValue(v.value, "return-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 8, "log.length");
+
+    iter.return("return-arg-2").then(v => {
+      assert.sameValue(log[8].name, "get return");
+      assert.sameValue(log[8].thisValue.name, "asyncIterator", "get return thisValue");
+
+      assert.sameValue(log[9].name, "call return");
+      assert.sameValue(log[9].thisValue.name, "asyncIterator", "return thisValue");
+      assert.sameValue(log[9].args.length, 1, "return args.length");
+      assert.sameValue(log[9].args[0], "return-arg-2", "return args[0]");
+
+      assert.sameValue(log[10].name, "get return then (2)");
+      assert.sameValue(log[10].thisValue.name, "return-promise-2", "get return then thisValue");
+
+      assert.sameValue(log[11].name, "call return then (2)");
+      assert.sameValue(log[11].thisValue.name, "return-promise-2", "return then thisValue");
+      assert.sameValue(log[11].args.length, 2, "return then args.length");
+      assert.sameValue(typeof log[11].args[0], "function", "return then args[0]");
+      assert.sameValue(typeof log[11].args[1], "function", "return then args[1]");
+
+      assert.sameValue(log[12].name, "get return done (2)");
+      assert.sameValue(log[12].thisValue.name, "return-result-2", "get return done thisValue");
+
+      assert.sameValue(log[13].name, "get return value (2)");
+      assert.sameValue(log[13].thisValue.name, "return-result-2", "get return value thisValue");
+
+      assert.sameValue(v.value, "return-value-2");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 14, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-throw.js
new file mode 100644
index 0000000000..fa221bf0c4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-async-throw.js
@@ -0,0 +1,263 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-async-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: execution order for yield* with async iterator and throw() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, Symbol.asyncIterator, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      b. Else if received.[[Type]] is throw, then
+        i. Let throw be ? GetMethod(iterator, "throw").
+        ii. If throw is not undefined, then
+          1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+          2. If generatorKind is async, then set innerResult to ? Await(innerResult).
+          ...
+          5. Let done be ? IteratorComplete(innerResult).
+          6. If done is true, then
+            a. Let resultValue be Return ? IteratorValue(innerResult).
+            b. If generatorKind is async, then set resultValue to ? Await(resultValue).
+            c. Return resultValue.
+          7. If generatorKind is async, then let received be AsyncGeneratorYield(? IteratorValue(innerResult)).
+      ...
+
+    AsyncGeneratorYield ( value )
+
+    ...
+    8. Return ! AsyncGeneratorResolve(generator, value, false).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.asyncIterator]() {
+    var throwCount = 0;
+    return {
+      name: "asyncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get throw() {
+        log.push({
+          name: "get throw",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call throw",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          throwCount++;
+          if (throwCount == 1) {
+            return {
+              name: "throw-promise-1",
+              get then() {
+                log.push({
+                  name: "get throw then (1)",
+                  thisValue: this
+                });
+                return function(resolve) {
+                  log.push({
+                    name: "call throw then (1)",
+                    thisValue: this,
+                    args: [...arguments]
+                  });
+
+                  resolve({
+                    name: "throw-result-1",
+                    get value() {
+                      log.push({
+                        name: "get throw value (1)",
+                        thisValue: this
+                      });
+                      return "throw-value-1";
+                    },
+                    get done() {
+                      log.push({
+                        name: "get throw done (1)",
+                        thisValue: this
+                      });
+                      return false;
+                    }
+                  });
+                };
+              }
+            };
+          }
+
+          return {
+            name: "throw-promise-2",
+            get then() {
+              log.push({
+                name: "get throw then (2)",
+                thisValue: this
+              });
+              return function(resolve) {
+                log.push({
+                  name: "call throw then (2)",
+                  thisValue: this,
+                  args: [...arguments]
+                });
+
+                resolve({
+                  name: "throw-result-2",
+                  get value() {
+                    log.push({
+                      name: "get throw value (2)",
+                      thisValue: this
+                    });
+                    return "throw-value-2";
+                  },
+                  get done() {
+                    log.push({
+                      name: "get throw done (2)",
+                      thisValue: this
+                    });
+                    return true;
+                  }
+                });
+              };
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.throw("throw-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get throw");
+    assert.sameValue(log[2].thisValue.name, "asyncIterator", "get throw thisValue");
+
+    assert.sameValue(log[3].name, "call throw");
+    assert.sameValue(log[3].thisValue.name, "asyncIterator", "throw thisValue");
+    assert.sameValue(log[3].args.length, 1, "throw args.length");
+    assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+    assert.sameValue(log[4].name, "get throw then (1)");
+    assert.sameValue(log[4].thisValue.name, "throw-promise-1", "get throw thisValue");
+
+    assert.sameValue(log[5].name, "call throw then (1)");
+    assert.sameValue(log[5].thisValue.name, "throw-promise-1", "throw thisValue");
+    assert.sameValue(log[5].args.length, 2, "throw then args.length");
+    assert.sameValue(typeof log[5].args[0], "function", "throw then args[0]");
+    assert.sameValue(typeof log[5].args[1], "function", "throw then args[1]");
+
+    assert.sameValue(log[6].name, "get throw done (1)");
+    assert.sameValue(log[6].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+    assert.sameValue(log[7].name, "get throw value (1)");
+    assert.sameValue(log[7].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+    assert.sameValue(v.value, "throw-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 8, "log.length");
+
+    iter.throw("throw-arg-2").then(v => {
+      assert.sameValue(log[8].name, "get throw");
+      assert.sameValue(log[8].thisValue.name, "asyncIterator", "get throw thisValue");
+
+      assert.sameValue(log[9].name, "call throw");
+      assert.sameValue(log[9].thisValue.name, "asyncIterator", "throw thisValue");
+      assert.sameValue(log[9].args.length, 1, "throw args.length");
+      assert.sameValue(log[9].args[0], "throw-arg-2", "throw args[0]");
+
+      assert.sameValue(log[10].name, "get throw then (2)");
+      assert.sameValue(log[10].thisValue.name, "throw-promise-2", "get throw thisValue");
+
+      assert.sameValue(log[11].name, "call throw then (2)");
+      assert.sameValue(log[11].thisValue.name, "throw-promise-2", "throw thisValue");
+      assert.sameValue(log[11].args.length, 2, "throw then args.length");
+      assert.sameValue(typeof log[11].args[0], "function", "throw then args[0]");
+      assert.sameValue(typeof log[11].args[1], "function", "throw then args[1]");
+
+      assert.sameValue(log[12].name, "get throw done (2)");
+      assert.sameValue(log[12].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+      assert.sameValue(log[13].name, "get throw value (2)");
+      assert.sameValue(log[13].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+      assert.sameValue(log[14].name, "after yield*");
+      assert.sameValue(log[14].value, "throw-value-2");
+
+      assert.sameValue(v.value, "return-value");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 15, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-expr-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-expr-abrupt.js
new file mode 100644
index 0000000000..ec5fef9e83
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-expr-abrupt.js
@@ -0,0 +1,74 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-expr-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting yield* operand (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    ...
+
+---*/
+var obj = {};
+var abrupt = function() {
+  throw obj;
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* abrupt();
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, obj, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-get-abrupt.js
new file mode 100644
index 0000000000..321bdf47d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-get-abrupt.js
@@ -0,0 +1,94 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting [Symbol.asyncIterator] (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  get [Symbol.asyncIterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..40842ce7fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-boolean-throw.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (boolean) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: false
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-number-throw.js
new file mode 100644
index 0000000000..07f17d06b5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-number-throw.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (number) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: 0
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-object-throw.js
new file mode 100644
index 0000000000..da106a1550
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-object-throw.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (object) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: {}
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-string-throw.js
new file mode 100644
index 0000000000..85b5f8c000
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-string-throw.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (string) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: ''
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..64f09d0da9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-not-callable-symbol-throw.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.asyncIterator] (symbol) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    3. If func is either undefined or null, return undefined.
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]: Symbol.asyncIterator
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-null-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-null-sync-get-abrupt.js
new file mode 100644
index 0000000000..270f0300ca
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-null-sync-get-abrupt.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-null-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting @@iterator after null @@asyncIterator (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var calls = 0;
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  },
+  get [Symbol.asyncIterator]() {
+    calls += 1;
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+  assert.sameValue(calls, 1);
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-abrupt.js
new file mode 100644
index 0000000000..ac3d3b5fcc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-abrupt.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while calling [Symbol.asyncIterator] (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-boolean-throw.js
new file mode 100644
index 0000000000..0f4880b0c1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-boolean-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-boolean-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - boolean (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return true;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-null-throw.js
new file mode 100644
index 0000000000..2aaec3d97c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-null-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-null-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - null (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-number-throw.js
new file mode 100644
index 0000000000..2d097d12e8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-number-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-number-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - number (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return 42;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-string-throw.js
new file mode 100644
index 0000000000..c811757e67
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-string-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-string-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - string (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return '42';
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-symbol-throw.js
new file mode 100644
index 0000000000..7f51b55cc3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-symbol-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-symbol-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - symbol (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return Symbol.asyncIterator;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-undefined-throw.js
new file mode 100644
index 0000000000..748e27eff0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-returns-undefined-throw.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-returns-undefined-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.asyncIterator]() - undefined (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+    ...
+    6. Let iterator be ? Call(method, obj).
+    7. If Type(iterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-undefined-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-undefined-sync-get-abrupt.js
new file mode 100644
index 0000000000..b3d7c2fe65
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-async-undefined-sync-get-abrupt.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-async-undefined-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var calls = 0;
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  },
+  get [Symbol.asyncIterator]() {
+    calls += 1;
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+  assert.sameValue(calls, 1);
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-get-abrupt.js
new file mode 100644
index 0000000000..465827a071
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-get-abrupt.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting [Symbol.iterator] (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..571fbc8120
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-boolean-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (boolean) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: false
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-number-throw.js
new file mode 100644
index 0000000000..7957616217
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-number-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (number) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: 0
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-object-throw.js
new file mode 100644
index 0000000000..8ba9442178
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-object-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (object) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: {}
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-string-throw.js
new file mode 100644
index 0000000000..f8fe339b06
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-string-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (string) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: ''
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..50f9b47d3a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-not-callable-symbol-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Throws a TypeError on a non-callable [Symbol.iterator] (symbol) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+    ...
+
+    GetMethod ( V, P )
+
+    ...
+    2. Let func be ? GetV(V, P).
+    ...
+    4. If IsCallable(func) is false, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]: Symbol.iterator
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-abrupt.js
new file mode 100644
index 0000000000..7a7fff3a80
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-abrupt.js
@@ -0,0 +1,87 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while calling [Symbol.iterator] (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  [Symbol.iterator]() {
+    throw reason;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-boolean-throw.js
new file mode 100644
index 0000000000..a543a2ac47
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-boolean-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-boolean-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - boolean (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return true;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-null-throw.js
new file mode 100644
index 0000000000..b394a8346b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-null-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-null-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - null (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-number-throw.js
new file mode 100644
index 0000000000..169cfe38c3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-number-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-number-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - number (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return 0;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-string-throw.js
new file mode 100644
index 0000000000..3ba382cca5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-string-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-string-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - string (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return '';
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-symbol-throw.js
new file mode 100644
index 0000000000..a59eb2a579
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-symbol-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-symbol-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - symbol (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return Symbol.iterator;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-undefined-throw.js
new file mode 100644
index 0000000000..f0fdf55a7d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-getiter-sync-returns-undefined-throw.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-getiter-sync-returns-undefined-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Non object returned by [Symbol.iterator]() - undefined (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    1. Let exprRef be the result of evaluating AssignmentExpression.
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    CreateAsyncFromSyncIterator(syncIterator)
+
+    1. If Type(syncIterator) is not Object, throw a TypeError exception.
+    ...
+
+---*/
+var obj = {
+  [Symbol.iterator]() {
+    return undefined;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-done-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-done-get-abrupt.js
new file mode 100644
index 0000000000..330b7063ff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-done-get-abrupt.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-done-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting done (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        v. Let done be ? IteratorComplete(innerResult).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          get done() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-returns-abrupt.js
new file mode 100644
index 0000000000..18dda59a3e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-returns-abrupt.js
@@ -0,0 +1,85 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while calling next (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        throw reason;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-value-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-value-get-abrupt.js
new file mode 100644
index 0000000000..bb15467078
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-call-value-get-abrupt.js
@@ -0,0 +1,95 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-call-value-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting value (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        vi. If done is true, then
+           1. Return ? IteratorValue(innerResult).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          done: true,
+          get value() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-get-abrupt.js
new file mode 100644
index 0000000000..89d77cd05b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-get-abrupt.js
@@ -0,0 +1,85 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Abrupt completion while getting next (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      get next() {
+        throw reason;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, "reject reason");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-non-object-ignores-then.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-non-object-ignores-then.js
new file mode 100644
index 0000000000..4c7cee0b64
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-non-object-ignores-then.js
@@ -0,0 +1,105 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-non-object-ignores-then.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: If next() value is not-object, do not access respective then property (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+
+---*/
+Number.prototype.then = function() {
+  throw new Test262Error('Number#then should not be used');
+};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return 42;
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, 'TypeError');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-boolean-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-boolean-throw.js
new file mode 100644
index 0000000000..08c1629ac8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-boolean-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-boolean-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - boolean (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: true
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-null-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-null-throw.js
new file mode 100644
index 0000000000..1ab7422ad3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-null-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-null-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - null (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: null
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-number-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-number-throw.js
new file mode 100644
index 0000000000..6e7a5e3e5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-number-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-number-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - number (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: 42
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-object-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-object-throw.js
new file mode 100644
index 0000000000..50d72f6c85
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-object-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-object-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - object (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: {}
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-string-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-string-throw.js
new file mode 100644
index 0000000000..473355adde
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-string-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-string-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - string (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: ''
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-symbol-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-symbol-throw.js
new file mode 100644
index 0000000000..e9f65a126c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-symbol-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-symbol-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - symbol (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: Symbol('oi')
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-undefined-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-undefined-throw.js
new file mode 100644
index 0000000000..8c2cf29b05
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-not-callable-undefined-throw.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-not-callable-undefined-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Not-callable next value in a yield star position - undefined (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next: undefined
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v.constructor, TypeError, "TypeError");
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-get-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-get-abrupt.js
new file mode 100644
index 0000000000..c0b9bd1a9f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-get-abrupt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-get-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Return abrupt after getting next().then (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    8. Let then be Get(resolution, "then").
+    ...
+    10. Get thenAction be then.[[Value]].
+    ...
+    12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
+        resolution, thenAction »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          get then() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-boolean-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-boolean-fulfillpromise.js
new file mode 100644
index 0000000000..e9301e29e0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-boolean-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-boolean-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (boolean) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: true,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-null-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-null-fulfillpromise.js
new file mode 100644
index 0000000000..322702eb21
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-null-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-null-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (null) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: null,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-number-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-number-fulfillpromise.js
new file mode 100644
index 0000000000..e206e1d422
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-number-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-number-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (number) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: 39,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-object-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-object-fulfillpromise.js
new file mode 100644
index 0000000000..f99a70eb8c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-object-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-object-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (object) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: {},
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-string-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-string-fulfillpromise.js
new file mode 100644
index 0000000000..05ffe54dd8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-string-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-string-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (string) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: '',
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-symbol-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-symbol-fulfillpromise.js
new file mode 100644
index 0000000000..d15ddd974e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-symbol-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-symbol-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (symbol) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: Symbol('oi'),
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-undefined-fulfillpromise.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-undefined-fulfillpromise.js
new file mode 100644
index 0000000000..cc5799e89f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-non-callable-undefined-fulfillpromise.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-non-callable-undefined-fulfillpromise.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: FulfillPromise if next().then is not-callable (undefined) (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        iv. If Type(innerResult) is not Object, throw a TypeError exception.
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    7. If Type(resolution) is not Object, then
+      a. Return FulfillPromise(promise, resolution).
+    8. Let then be Get(resolution, "then").
+    ...
+    11. If IsCallable(thenAction) is false, then
+      a. Return FulfillPromise(promise, resolution).
+    ...
+
+---*/
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then: undefined,
+          value: 42,
+          done: false
+        }
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(({ value, done }) => {
+  assert.sameValue(value, 42);
+  assert.sameValue(done, false);
+}).then($DONE, $DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-returns-abrupt.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-returns-abrupt.js
new file mode 100644
index 0000000000..f116feff0a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-next-then-returns-abrupt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-next-then-returns-abrupt.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: Return abrupt after calling next().then (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, Symbol.asyncIterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+    ...
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+    ...
+
+    Await
+
+    ...
+    2. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    3. Perform ! Call(promiseCapability.[[Resolve]], undefined, « promise »).
+    ...
+
+    Promise Resolve Functions
+
+    ...
+    8. Let then be Get(resolution, "then").
+    ...
+    10. Get thenAction be then.[[Value]].
+    ...
+    12. Perform EnqueueJob("PromiseJobs", PromiseResolveThenableJob, « promise,
+        resolution, thenAction »).
+    ...
+
+---*/
+var reason = {};
+var obj = {
+  get [Symbol.iterator]() {
+    throw new Test262Error('it should not get Symbol.iterator');
+  },
+  [Symbol.asyncIterator]() {
+    return {
+      next() {
+        return {
+          then() {
+            throw reason;
+          }
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        yield* obj;
+          throw new Test262Error('abrupt completion closes iter');
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error('Promise incorrectly fulfilled.');
+}, v => {
+  assert.sameValue(v, reason, 'reject reason');
+
+  iter.next().then(({ done, value }) => {
+    assert.sameValue(done, true, 'the iterator is completed');
+    assert.sameValue(value, undefined, 'value is undefined');
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-next.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-next.js
new file mode 100644
index 0000000000..3508e1b76e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-next.js
@@ -0,0 +1,242 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-next.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: execution order for yield* with sync iterator and next() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    2. Let value be ? GetValue(exprRef).
+    3. Let generatorKind be ! GetGeneratorKind().
+    4. Let iterator be ? GetIterator(value, generatorKind).
+    5. Let received be NormalCompletion(undefined).
+    6. Repeat
+      a. If received.[[Type]] is normal, then
+        i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
+        ii. Let innerResult be ? Invoke(iterator, "next",
+            « received.[[Value]] »).
+        iii. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+        ...
+        v. Let done be ? IteratorComplete(innerResult).
+        vi. If done is true, then
+           1. Return ? IteratorValue(innerResult).
+        vii. Let received be GeneratorYield(innerResult).
+      ...
+
+    GetIterator ( obj [ , hint ] )
+
+    ...
+    3. If hint is async,
+      a. Set method to ? GetMethod(obj, @@asyncIterator).
+      b. If method is undefined,
+        i. Let syncMethod be ? GetMethod(obj, @@iterator).
+        ii. Let syncIterator be ? Call(syncMethod, obj).
+        iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+    ...
+
+    %AsyncFromSyncIteratorPrototype%.next ( value )
+
+    ...
+    5. Let nextResult be IteratorNext(syncIterator, value).
+    ...
+    7. Let nextValue be IteratorValue(nextResult).
+    ...
+    9. Let nextDone be IteratorComplete(nextResult).
+    ...
+    12. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+        « nextValue »).
+    ...
+    14. Set onFulfilled.[[Done]] to nextDone.
+    15. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+    Async Iterator Value Unwrap Functions
+
+    1. Return ! CreateIterResultObject(value, F.[[Done]]).
+
+---*/
+var log = [];
+var obj = {
+  get [Symbol.iterator]() {
+    log.push({
+      name: "get [Symbol.iterator]",
+      thisValue: this
+    });
+    return function() {
+      log.push({
+        name: "call [Symbol.iterator]",
+        thisValue: this,
+        args: [...arguments]
+      });
+      var nextCount = 0;
+      return {
+        name: "syncIterator",
+        get next() {
+          log.push({
+            name: "get next",
+            thisValue: this
+          });
+          return function() {
+            log.push({
+              name: "call next",
+              thisValue: this,
+              args: [...arguments]
+            });
+
+            nextCount++;
+            if (nextCount == 1) {
+              return {
+                name: "next-result-1",
+                get value() {
+                  log.push({
+                    name: "get next value (1)",
+                    thisValue: this
+                  });
+                  return "next-value-1";
+                },
+                get done() {
+                  log.push({
+                    name: "get next done (1)",
+                    thisValue: this
+                  });
+                  return false;
+                }
+              };
+            }
+
+            return {
+              name: "next-result-2",
+              get value() {
+                log.push({
+                  name: "get next value (2)",
+                  thisValue: this
+                });
+                return "next-value-2";
+              },
+              get done() {
+                log.push({
+                  name: "get next done (2)",
+                  thisValue: this
+                });
+                return true;
+              }
+            };
+          };
+        }
+      };
+    };
+  },
+  get [Symbol.asyncIterator]() {
+    log.push({ name: "get [Symbol.asyncIterator]" });
+    return null;
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next("next-arg-1").then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+
+  assert.sameValue(log[2].name, "get [Symbol.iterator]");
+  assert.sameValue(log[2].thisValue, obj, "get [Symbol.iterator] thisValue");
+
+  assert.sameValue(log[3].name, "call [Symbol.iterator]");
+  assert.sameValue(log[3].thisValue, obj, "[Symbol.iterator] thisValue");
+  assert.sameValue(log[3].args.length, 0, "[Symbol.iterator] args.length");
+
+  assert.sameValue(log[4].name, "get next");
+  assert.sameValue(log[4].thisValue.name, "syncIterator", "get next thisValue");
+
+  assert.sameValue(log[5].name, "call next");
+  assert.sameValue(log[5].thisValue.name, "syncIterator", "next thisValue");
+  assert.sameValue(log[5].args.length, 1, "next args.length");
+  assert.sameValue(log[5].args[0], undefined, "next args[0]");
+
+  assert.sameValue(log[6].name, "get next done (1)");
+  assert.sameValue(log[6].thisValue.name, "next-result-1", "get next done thisValue");
+
+  assert.sameValue(log[7].name, "get next value (1)");
+  assert.sameValue(log[7].thisValue.name, "next-result-1", "get next value thisValue");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 8, "log.length");
+
+  iter.next("next-arg-2").then(v => {
+    assert.sameValue(log[8].name, "call next");
+    assert.sameValue(log[8].thisValue.name, "syncIterator", "next thisValue");
+    assert.sameValue(log[8].args.length, 1, "next args.length");
+    assert.sameValue(log[8].args[0], "next-arg-2", "next args[0]");
+
+    assert.sameValue(log[9].name, "get next done (2)");
+    assert.sameValue(log[9].thisValue.name, "next-result-2", "get next done thisValue");
+
+    assert.sameValue(log[10].name, "get next value (2)");
+    assert.sameValue(log[10].thisValue.name, "next-result-2", "get next value thisValue");
+
+    assert.sameValue(log[11].name, "after yield*");
+    assert.sameValue(log[11].value, "next-value-2");
+
+    assert.sameValue(v.value, "return-value");
+    assert.sameValue(v.done, true);
+
+    assert.sameValue(log.length, 12, "log.length");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-return.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-return.js
new file mode 100644
index 0000000000..10e2d61c6f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-return.js
@@ -0,0 +1,217 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-return.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: execution order for yield* with sync iterator and return() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      c. Else,
+        i. Assert: received.[[Type]] is return.
+        ii. Let return be ? GetMethod(iterator, "return").
+        iii. If return is undefined, return Completion(received).
+        iv. Let innerReturnResult be ? Call(return, iterator,
+            « received.[[Value]] »).
+        v. If generatorKind is async, then set innerReturnResult to
+           ? Await(innerReturnResult).
+        ...
+        vii. Let done be ? IteratorComplete(innerReturnResult).
+        viii. If done is true, then
+             1. Let value be ? IteratorValue(innerReturnResult).
+             2. Return Completion{[[Type]]: return, [[Value]]: value,
+                [[Target]]: empty}.
+        ix. Let received be GeneratorYield(innerResult).
+
+    %AsyncFromSyncIteratorPrototype%.return ( value )
+
+    5. Let return be GetMethod(syncIterator, "return").
+    ...
+    ...
+    8. Let returnResult be Call(return, syncIterator, « value »).
+    ...
+    11. Let returnValue be IteratorValue(returnResult).
+    ..
+    13. Let returnDone be IteratorComplete(returnResult).
+    ...
+    16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined, « returnValue »).
+    ...
+    18. Set onFulfilled.[[Done]] to returnDone.
+    19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.iterator]() {
+    var returnCount = 0;
+    return {
+      name: "syncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get return() {
+        log.push({
+          name: "get return",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call return",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          returnCount++;
+          if (returnCount == 1) {
+            return {
+              name: "return-result-1",
+              get value() {
+                log.push({
+                  name: "get return value (1)",
+                  thisValue: this
+                });
+                return "return-value-1";
+              },
+              get done() {
+                log.push({
+                  name: "get return done (1)",
+                  thisValue: this
+                });
+                return false;
+              }
+            };
+          }
+
+          return {
+            name: "return-result-2",
+            get value() {
+              log.push({
+                name: "get return value (2)",
+                thisValue: this
+              });
+              return "return-value-2";
+            },
+            get done() {
+              log.push({
+                name: "get return done (2)",
+                thisValue: this
+              });
+              return true;
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          yield* obj;
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.return("return-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get return");
+    assert.sameValue(log[2].thisValue.name, "syncIterator", "get return thisValue");
+
+    assert.sameValue(log[3].name, "call return");
+    assert.sameValue(log[3].thisValue.name, "syncIterator", "return thisValue");
+    assert.sameValue(log[3].args.length, 1, "return args.length");
+    assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+    assert.sameValue(log[4].name, "get return done (1)");
+    assert.sameValue(log[4].thisValue.name, "return-result-1", "get return done thisValue");
+
+    assert.sameValue(log[5].name, "get return value (1)");
+    assert.sameValue(log[5].thisValue.name, "return-result-1", "get return value thisValue");
+
+    assert.sameValue(v.value, "return-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 6, "log.length");
+
+    iter.return().then(v => {
+      assert.sameValue(log[6].name, "get return");
+      assert.sameValue(log[6].thisValue.name, "syncIterator", "get return thisValue");
+
+      assert.sameValue(log[7].name, "call return");
+      assert.sameValue(log[7].thisValue.name, "syncIterator", "get return thisValue");
+      assert.sameValue(log[7].args.length, 1, "return args.length");
+      assert.sameValue(log[7].args[0], undefined, "return args[0]");
+
+      assert.sameValue(log[8].name, "get return done (2)");
+      assert.sameValue(log[8].thisValue.name, "return-result-2", "get return done thisValue");
+
+      assert.sameValue(log[9].name, "get return value (2)");
+      assert.sameValue(log[9].thisValue.name, "return-result-2", "get return value thisValue");
+
+      assert.sameValue(v.value, "return-value-2");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 10, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-throw.js b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-throw.js
new file mode 100644
index 0000000000..779dc10eff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-gen-private-method/yield-star-sync-throw.js
@@ -0,0 +1,223 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-star-sync-throw.case
+// - src/async-generators/default/async-class-expr-private-method.template
+/*---
+description: execution order for yield* with sync iterator and throw() (Async generator method as a ClassExpression element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [Symbol.iterator, async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+
+    YieldExpression: yield * AssignmentExpression
+
+    ...
+    6. Repeat
+      ...
+      b. Else if received.[[Type]] is throw, then
+        i. Let throw be ? GetMethod(iterator, "throw").
+        ii. If throw is not undefined, then
+          1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+          2. If generatorKind is async, then set innerResult to
+             ? Await(innerResult).
+          ...
+          5. Let done be ? IteratorComplete(innerResult).
+          6. If done is true, then
+            a. Return ? IteratorValue(innerResult).
+          7. Let received be GeneratorYield(innerResult).
+      ...
+
+    %AsyncFromSyncIteratorPrototype%.throw ( value )
+
+    ...
+    5. Let throw be GetMethod(syncIterator, "throw").
+    ...
+    8. Let throwResult be Call(throw, syncIterator, « value »).
+    ...
+    11. Let throwValue be IteratorValue(throwResult).
+    ...
+    13. Let throwDone be IteratorComplete(throwResult).
+    ...
+    16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+        « throwValue »).
+    ...
+    18. Set onFulfilled.[[Done]] to throwDone.
+    19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+        onFulfilled, undefined, promiseCapability).
+    ...
+
+---*/
+var log = [];
+var obj = {
+  [Symbol.iterator]() {
+    var throwCount = 0;
+    return {
+      name: "syncIterator",
+      get next() {
+        log.push({ name: "get next" });
+        return function() {
+          return {
+            value: "next-value-1",
+            done: false
+          };
+        };
+      },
+      get throw() {
+        log.push({
+          name: "get throw",
+          thisValue: this
+        });
+        return function() {
+          log.push({
+            name: "call throw",
+            thisValue: this,
+            args: [...arguments]
+          });
+
+          throwCount++;
+          if (throwCount == 1) {
+            return {
+              name: "throw-result-1",
+              get value() {
+                log.push({
+                  name: "get throw value (1)",
+                  thisValue: this
+                });
+                return "throw-value-1";
+              },
+              get done() {
+                log.push({
+                  name: "get throw done (1)",
+                  thisValue: this
+                });
+                return false;
+              }
+            };
+          }
+
+          return {
+            name: "throw-result-2",
+            get value() {
+              log.push({
+                name: "get throw value (2)",
+                thisValue: this
+              });
+              return "throw-value-2";
+            },
+            get done() {
+              log.push({
+                name: "get throw done (2)",
+                thisValue: this
+              });
+              return true;
+            }
+          };
+        };
+      }
+    };
+  }
+};
+
+
+
+var callCount = 0;
+
+var C = class {
+    async *#gen() {
+        callCount += 1;
+        log.push({ name: "before yield*" });
+          var v = yield* obj;
+          log.push({
+            name: "after yield*",
+            value: v
+          });
+          return "return-value";
+
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+assert.sameValue(log.length, 0, "log.length");
+
+iter.next().then(v => {
+  assert.sameValue(log[0].name, "before yield*");
+
+  assert.sameValue(log[1].name, "get next");
+
+  assert.sameValue(v.value, "next-value-1");
+  assert.sameValue(v.done, false);
+
+  assert.sameValue(log.length, 2, "log.length");
+
+  iter.throw("throw-arg-1").then(v => {
+    assert.sameValue(log[2].name, "get throw");
+    assert.sameValue(log[2].thisValue.name, "syncIterator", "get throw thisValue");
+
+    assert.sameValue(log[3].name, "call throw");
+    assert.sameValue(log[3].thisValue.name, "syncIterator", "throw thisValue");
+    assert.sameValue(log[3].args.length, 1, "throw args.length");
+    assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+    assert.sameValue(log[4].name, "get throw done (1)");
+    assert.sameValue(log[4].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+    assert.sameValue(log[5].name, "get throw value (1)");
+    assert.sameValue(log[5].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+    assert.sameValue(v.value, "throw-value-1");
+    assert.sameValue(v.done, false);
+
+    assert.sameValue(log.length, 6, "log.length");
+
+    iter.throw().then(v => {
+      assert.sameValue(log[6].name, "get throw");
+      assert.sameValue(log[6].thisValue.name, "syncIterator", "get throw thisValue");
+
+      assert.sameValue(log[7].name, "call throw");
+      assert.sameValue(log[7].thisValue.name, "syncIterator", "throw thisValue");
+      assert.sameValue(log[7].args.length, 1, "throw args.length");
+      assert.sameValue(log[7].args[0], undefined, "throw args[0]");
+
+      assert.sameValue(log[8].name, "get throw done (2)");
+      assert.sameValue(log[8].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+      assert.sameValue(log[9].name, "get throw value (2)");
+      assert.sameValue(log[9].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+      assert.sameValue(log[10].name, "after yield*");
+      assert.sameValue(log[10].value, "throw-value-2");
+
+      assert.sameValue(v.value, "return-value");
+      assert.sameValue(v.done, true);
+
+      assert.sameValue(log.length, 11, "log.length");
+    }).then($DONE, $DONE);
+  }).catch($DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..9bc5e94c95
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier-escaped.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    var \u0061wait;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier.js
new file mode 100644
index 0000000000..b3d9c43152
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-binding-identifier.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    var await;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..ea148a0436
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference-escaped.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    void \u0061wait;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference.js
new file mode 100644
index 0000000000..16dfd6380e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-identifier-reference.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    void await;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..5bd10c80fb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier-escaped.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    \u0061wait: ;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier.js
new file mode 100644
index 0000000000..13f4284bf0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/await-as-label-identifier.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier.case
+// - src/async-functions/syntax/async-class-expr-static-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  static async #method() {
+    await: ;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/browser.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-arguments-from-parent-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-arguments-from-parent-function.js
new file mode 100644
index 0000000000..3a0aa0a415
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-arguments-from-parent-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow-returns-arguments-from-parent-function.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    let a = arguments;
+      return async () => a === arguments;
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn().then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, true);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-newtarget.js
new file mode 100644
index 0000000000..da386a81dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow-returns-newtarget.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow-returns-newtarget.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    return async () => new.target;
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn().then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, undefined);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow.js
new file mode 100644
index 0000000000..fa0b079bf5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-arrow.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    return async () => x;
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, 1);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-arguments-from-own-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-arguments-from-own-function.js
new file mode 100644
index 0000000000..1929855d7d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-arguments-from-own-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function-returns-arguments-from-own-function.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    let a = arguments;
+      return async function() { return a === arguments; };
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, false);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-newtarget.js
new file mode 100644
index 0000000000..9d4b4cc4c0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function-returns-newtarget.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function-returns-newtarget.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    return async function() { return new.target; };
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, undefined);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function.js
new file mode 100644
index 0000000000..2c4c55817c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/returns-async-function.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function.case
+// - src/async-functions/evaluation/async-class-expr-static-private-method.template
+/*---
+description: Async function returns an async function. (Static private async method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-static-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  static async #method(x) {
+    return async function() { return x; };
+  }
+  static async method(x) {
+    return this.#method(x);
+  }
+}
+// Stores a reference `asyncFn` for case evaluation
+let asyncFn = C.method.bind(C);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, 1);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/shell.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method-static/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..9f68e2f746
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier-escaped.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    var \u0061wait;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier.js
new file mode 100644
index 0000000000..fe25ad9e37
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-binding-identifier.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    var await;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..34306861de
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference-escaped.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    void \u0061wait;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference.js
new file mode 100644
index 0000000000..74894d7836
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-identifier-reference.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    void await;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..4ec0f19a5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier-escaped.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier-escaped.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    \u0061wait: ;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier.js
new file mode 100644
index 0000000000..c5038b9029
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/await-as-label-identifier.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier.case
+// - src/async-functions/syntax/async-class-expr-private-method.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+$DONOTEVALUATE();
+
+
+var C = class {
+  async #method() {
+    await: ;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/browser.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-arguments-from-parent-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-arguments-from-parent-function.js
new file mode 100644
index 0000000000..ddb58cd675
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-arguments-from-parent-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow-returns-arguments-from-parent-function.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    let a = arguments;
+      return async () => a === arguments;
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn().then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, true);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-newtarget.js
new file mode 100644
index 0000000000..125099117c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow-returns-newtarget.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow-returns-newtarget.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    return async () => new.target;
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn().then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, undefined);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow.js
new file mode 100644
index 0000000000..e939b621b0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-arrow.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-arrow.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    return async () => x;
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, 1);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-arguments-from-own-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-arguments-from-own-function.js
new file mode 100644
index 0000000000..5d3fdf72e7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-arguments-from-own-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function-returns-arguments-from-own-function.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    let a = arguments;
+      return async function() { return a === arguments; };
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, false);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-newtarget.js
new file mode 100644
index 0000000000..09ec06ea7c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function-returns-newtarget.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function-returns-newtarget.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    return async function() { return new.target; };
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, undefined);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function.js
new file mode 100644
index 0000000000..986a60c5a8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/async-private-method/returns-async-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/async-functions/returns-async-function.case
+// - src/async-functions/evaluation/async-class-expr-private-method.template
+/*---
+description: Async function returns an async function. (Async private method as a ClassExpression element)
+esid: prod-AsyncMethod
+features: [async-functions, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncMethod
+
+    Async Function Definitions
+
+    AsyncMethod :
+      async [no LineTerminator here] # PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+---*/
+let count = 0;
+
+
+var C = class {
+  async #method(x) {
+    return async function() { return x; };
+  }
+  async method(x) {
+    return this.#method(x);
+  }
+};
+// Stores a reference `asyncFn` for case evaluation
+let c = new C();
+let asyncFn = c.method.bind(c);
+
+asyncFn(1).then(retFn => {
+  count++;
+  return retFn();
+}).then(result => {
+  assert.sameValue(result, 1);
+  assert.sameValue(count, 1);
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/async-private-method/shell.js b/js/src/tests/test262/language/expressions/class/elements/async-private-method/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/browser.js b/js/src/tests/test262/language/expressions/class/elements/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-anonymous.js b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-anonymous.js
new file mode 100644
index 0000000000..33c989b567
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-anonymous.js
@@ -0,0 +1,28 @@
+// Copyright 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-runtime-semantics-classdefinitionevaluation
+description: >
+    The inferred class-name is present when executing static field initializers of anonymous class expressions.
+info: |
+    14.6.13 Runtime Semantics: ClassDefinitionEvaluation
+
+    [...]
+    17. Perform MakeClassConstructor(F).
+    18. If className is not undefined, then
+        a. Perform SetFunctionName(F, className).
+    [...]
+
+features: [class-static-fields-public]
+---*/
+
+var className;
+
+var C = class {
+    static f = (className = this.name);
+}
+
+assert.sameValue(className, "C");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-decl.js b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-decl.js
new file mode 100644
index 0000000000..5b7ceee987
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-decl.js
@@ -0,0 +1,28 @@
+// Copyright 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-runtime-semantics-classdefinitionevaluation
+description: >
+    The class-name is present when executing static field initializers of class declarations.
+info: |
+    14.6.13 Runtime Semantics: ClassDefinitionEvaluation
+
+    [...]
+    17. Perform MakeClassConstructor(F).
+    18. If className is not undefined, then
+        a. Perform SetFunctionName(F, className).
+    [...]
+
+features: [class-static-fields-public]
+---*/
+
+var className;
+
+class C {
+    static f = (className = this.name);
+}
+
+assert.sameValue(className, "C");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-default-export.js b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-default-export.js
new file mode 100644
index 0000000000..88ed40b12a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-default-export.js
@@ -0,0 +1,30 @@
+// |reftest| module
+// Copyright 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-runtime-semantics-classdefinitionevaluation
+description: >
+    The class-name is present when executing static field initializers of default-exported classes.
+info: |
+    14.6.13 Runtime Semantics: ClassDefinitionEvaluation
+
+    [...]
+    17. Perform MakeClassConstructor(F).
+    18. If className is not undefined, then
+        a. Perform SetFunctionName(F, className).
+    [...]
+
+flags: [module]
+features: [class-static-fields-public]
+---*/
+
+var className;
+
+export default class {
+    static f = (className = this.name);
+}
+
+assert.sameValue(className, "default");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-expr.js b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-expr.js
new file mode 100644
index 0000000000..18e743e2bf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/class-name-static-initializer-expr.js
@@ -0,0 +1,28 @@
+// Copyright 2019 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-runtime-semantics-classdefinitionevaluation
+description: >
+    The class-name is present when executing static field initializers of named class expressions.
+info: |
+    14.6.13 Runtime Semantics: ClassDefinitionEvaluation
+
+    [...]
+    17. Perform MakeClassConstructor(F).
+    18. If className is not undefined, then
+        a. Perform SetFunctionName(F, className).
+    [...]
+
+features: [class-static-fields-public]
+---*/
+
+var className;
+
+var expr = class C {
+    static f = (className = this.name);
+}
+
+assert.sameValue(className, "C");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..8cefd0f92d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-arguments.js
@@ -0,0 +1,36 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-comp-name.template
+/*---
+description: Syntax error if `arguments` used in class field (computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  [x] = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-super.js
new file mode 100644
index 0000000000..396462cffd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/comp-name-init-err-contains-super.js
@@ -0,0 +1,29 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-comp-name.template
+/*---
+description: Syntax error if `super()` used in class field (computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  [x] = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive-symbol.js b/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive-symbol.js
new file mode 100644
index 0000000000..00e0c7856d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive-symbol.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-toprimitive-symbol.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: ToPrimitive evaluation in the ComputedPropertyName (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, Symbol.toPrimitive, Symbol, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var s1 = Symbol();
+var s2 = Symbol();
+var s3 = Symbol();
+var err = function() { throw new Test262Error(); };
+var obj1 = {
+  [Symbol.toPrimitive]: function() { return s1; },
+  toString: err,
+  valueOf: err
+};
+
+var obj2 = {
+  toString: function() { return s2; },
+  valueOf: err
+};
+
+var obj3 = {
+  toString: undefined,
+  valueOf: function() { return s3; }
+};
+
+
+
+var C = class {
+  [obj1] = 42;
+  [obj2] = 43;
+  [obj3] = 44;
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, s1), false);
+assert.sameValue(Object.hasOwnProperty.call(C, s1), false);
+
+verifyProperty(c, s1, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, s2), false);
+assert.sameValue(Object.hasOwnProperty.call(C, s2), false);
+
+verifyProperty(c, s2, {
+  value: 43,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, s3), false);
+assert.sameValue(Object.hasOwnProperty.call(C, s3), false);
+
+verifyProperty(c, s3, {
+  value: 44,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive.js b/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive.js
new file mode 100644
index 0000000000..6d14feebe7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/computed-name-toprimitive.js
@@ -0,0 +1,102 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-toprimitive.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: ToPrimitive evaluation in the ComputedPropertyName (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, Symbol.toPrimitive, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var err = function() { throw new Test262Error(); };
+var obj1 = {
+  [Symbol.toPrimitive]: function() { return "d"; },
+  toString: err,
+  valueOf: err
+};
+
+var obj2 = {
+  toString: function() { return "e"; },
+  valueOf: err
+};
+
+var obj3 = {
+  toString: undefined,
+  valueOf: function() { return "f"; }
+};
+
+
+
+var C = class {
+  [obj1] = 42;
+  [obj2] = 43;
+  [obj3] = 44;
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "e"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "e"), false);
+
+verifyProperty(c, "e", {
+  value: 43,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "f"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "f"), false);
+
+verifyProperty(c, "f", {
+  value: 44,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/ctor-called-after-fields-init.js b/js/src/tests/test262/language/expressions/class/elements/ctor-called-after-fields-init.js
new file mode 100644
index 0000000000..ba0ec47400
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/ctor-called-after-fields-init.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/ctor-called-after-fields-init.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: The constructor method is called after the fields are initalized (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    [[Construct]] ( argumentsList, newTarget)
+
+    8. If kind is "base", then
+      a. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+      ...
+    ...
+    11. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    ...
+
+---*/
+var ctor;
+
+
+var C = class {
+  constructor() {
+    ctor = this.foo;
+  }
+  foo = 42;
+}
+
+var c = new C();
+
+assert.sameValue(ctor, 42);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..a7e4f59cb0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super.x;');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..043df175a7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super["x"];');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..566cb44a62
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..c435851eca
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..5e78ae5e4e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..7a035c6702
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..02669f2f34
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..a78841fb21
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..5e45a4171e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..48df895d33
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..d5c6149b02
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-arguments.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-fields-eval.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = eval('executed = true; arguments;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..2319f80f0a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/direct-eval-err-contains-newtarget.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-eval.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = eval('executed = true; new.target;');
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x, undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-arguments.js
new file mode 100644
index 0000000000..fdf3b36a1a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-equality.template
+/*---
+description: Syntax error if `arguments` used in class field (equality expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = {} == arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-super.js
new file mode 100644
index 0000000000..cac4a45c55
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/equality-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-equality.template
+/*---
+description: Syntax error if `super()` used in class field (equality expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = {} == super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/browser.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-referenceerror.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-referenceerror.js
new file mode 100644
index 0000000000..001be0e567
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-referenceerror.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-referenceerror.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: ReferenceError evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+function fn() {
+  throw new Test262Error();
+}
+
+
+
+function evaluate() {
+  var C = class {
+    [noRef] = fn();
+  };
+}
+
+assert.throws(ReferenceError, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-err.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-err.js
new file mode 100644
index 0000000000..1ca2127180
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-toprimitive-err.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: Custom error evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, Symbol.toPrimitive, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var obj = {
+  [Symbol.toPrimitive]: function() {
+    throw new Test262Error();
+  }
+};
+
+
+
+function evaluate() {
+  var C = class {
+    [obj]
+  };
+}
+
+assert.throws(Test262Error, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-noncallable.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-noncallable.js
new file mode 100644
index 0000000000..5b4acc4ca8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-noncallable.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-toprimitive-returns-noncallable.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: Custom error evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, Symbol.toPrimitive, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var obj = {
+  [Symbol.toPrimitive]: {}
+};
+
+
+
+function evaluate() {
+  var C = class {
+    [obj] = refErrorIfEvaluated;
+  };
+}
+
+assert.throws(TypeError
+, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-nonobject.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-nonobject.js
new file mode 100644
index 0000000000..7a4c510072
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-toprimitive-returns-nonobject.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-toprimitive-returns-nonobject.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: Custom error evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, Symbol.toPrimitive, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var obj = {
+  [Symbol.toPrimitive]: 42
+};
+
+
+
+function evaluate() {
+  var C = class {
+    [obj] = refErrorIfEvaluated;
+  };
+}
+
+assert.throws(TypeError, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-tostring-err.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-tostring-err.js
new file mode 100644
index 0000000000..86e27eee1c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-tostring-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-tostring-err.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: Custom error evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var obj = {
+  toString: function() {
+    throw new Test262Error();
+  }
+};
+
+
+
+function evaluate() {
+  var C = class {
+    [obj]
+  };
+}
+
+assert.throws(Test262Error
+, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-valueof-err.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-valueof-err.js
new file mode 100644
index 0000000000..8bbcab078c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/computed-name-valueof-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-name-valueof-err.case
+// - src/class-elements/class-evaluation-error/cls-expr.template
+/*---
+description: Custom error evaluating a computed property name (field definitions in a class expression)
+esid: sec-runtime-semantics-classdefinitionevaluation
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    27. For each ClassElement e in order from elements
+      a. If IsStatic of me is false, then
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments proto and false.
+      b. Else,
+        i. Let fields be the result of performing ClassElementEvaluation for e with arguments F and false.
+      c. If fields is an abrupt completion, then
+        i. Set the running execution context's LexicalEnvironment to lex.
+        ii. Set the running execution context's PrivateNameEnvironment to outerPrivateEnvironment.
+        iii. Return Completion(status).
+    ...
+
+    Runtime Semantics: ClassElementEvaluation
+
+    ClassElement: FieldDefinition;
+      Return ClassFieldDefinitionEvaluation of FieldDefinition with parameter false and object.
+
+    Runtime Semantics: ClassFieldDefinitionEvaluation
+      With parameters isStatic and homeObject.
+
+    1. Let fieldName be the result of evaluating ClassElementName.
+    2. ReturnIfAbrupt(fieldName).
+    ...
+
+    Runtime Semantics: Evaluation
+      ComputedPropertyName: [ AssignmentExpression ]
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let propName be ? GetValue(exprValue).
+    3. Return ? ToPropertyKey(propName).
+
+---*/
+var obj = {
+  toString: undefined,
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+
+
+function evaluate() {
+  var C = class {
+    [obj]
+  };
+}
+
+assert.throws(Test262Error, evaluate);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/evaluation-error/shell.js b/js/src/tests/test262/language/expressions/class/elements/evaluation-error/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/field-declaration.js b/js/src/tests/test262/language/expressions/class/elements/field-declaration.js
new file mode 100644
index 0000000000..ca1e5124c5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/field-declaration.js
@@ -0,0 +1,99 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/field-declaration.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Fields are defined (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    ClassDefinitionEvaluation:
+      ...
+
+      26. Let instanceFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+          i. Let field be the result of performing ClassElementEvaluation for e with arguments proto and false.
+        b. ...
+        c. ...
+        d. If field is not empty, append field to instanceFields.
+
+      ...
+
+      30. Set F.[[Fields]] to instanceFields.
+      ...
+
+---*/
+var computed = 'h';
+
+
+var C = class {
+  f = 'test262';
+  'g';
+  0 = 'bar';
+  [computed];
+}
+
+let c = new C();
+
+assert.sameValue(C.f, undefined);
+assert.sameValue(C.g, undefined);
+assert.sameValue(C.h, undefined);
+assert.sameValue(C[0], undefined);
+
+assert.sameValue(Object.hasOwnProperty.call(C, 'f'), false);
+assert.sameValue(Object.hasOwnProperty.call(C, 'g'), false);
+assert.sameValue(Object.hasOwnProperty.call(C, 'h'), false);
+assert.sameValue(Object.hasOwnProperty.call(C, 0), false);
+
+verifyProperty(c, 'f', {
+  value: 'test262',
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(c, 'g', {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(c, 0, {
+  value: 'bar',
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(c, 'h', {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-anonymous-function-length.js b/js/src/tests/test262/language/expressions/class/elements/fields-anonymous-function-length.js
new file mode 100644
index 0000000000..309aadd38a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-anonymous-function-length.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/fields-anonymous-function-length.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Anonymous functions in field initializer have length properly set (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    InitializeInstanceFields ( O, constructor )
+      1. Assert: Type ( O ) is Object.
+      2. Assert: constructor is an ECMAScript function object.
+      3. Let fields be the value of constructor.[[Fields]].
+      4. For each item fieldRecord in order from fields,
+        a. Perform ? DefineField(O, fieldRecord).
+      5. Return.
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      ...
+
+---*/
+
+
+var C = class {
+  field = function() {};
+  #field = (a, b, c, d) => undefined;
+
+  accessPrivateField() {
+    return this.#field;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.accessPrivateField().length, 4);
+assert.sameValue(c.field.length, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-1.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-1.js
new file mode 100644
index 0000000000..a49a7dd4a1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-1.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- computed name interpreted as property
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+---*/
+
+var obj = {}
+var C = class {
+  x = obj
+  ['lol'] = 42
+}
+
+var c = new C();
+
+assert.sameValue(c.x, 42)
+assert.sameValue(obj['lol'], 42);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-2.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-2.js
new file mode 100644
index 0000000000..2eca4bf63f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-2.js
@@ -0,0 +1,19 @@
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- computed name interpreted as string index
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+---*/
+
+var C = class {
+  x = "lol"
+  [1]
+}
+
+var c = new C();
+
+assert.sameValue(c.x, 'o');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-3.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-3.js
new file mode 100644
index 0000000000..6df7f18af8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-3.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- error when computed name interpreted as index
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = "string"
+  [0]() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-4.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-4.js
new file mode 100644
index 0000000000..92e457a9b2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-4.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- error when generator interpreted as multiplication
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public, generators]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = 42
+  *gen() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-5.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-5.js
new file mode 100644
index 0000000000..60cf6a8468
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-5.js
@@ -0,0 +1,30 @@
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- field with PropertyName "in" interpreted as index
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+---*/
+
+var x = 0;
+var y = 1;
+var z = [42];
+
+var C = class {
+  a = x
+  in
+  z
+  b = y
+  in
+  z
+}
+
+var c = new C();
+
+assert.sameValue(c.a, true, 'a = x in z');
+assert.sameValue(c.b, false, 'b = y in z');
+assert.sameValue(Object.hasOwnProperty.call(c, "in"), false, "'in'");
+assert.sameValue(Object.hasOwnProperty.call(c, "z"), false, "'z'");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-1.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-1.js
new file mode 100644
index 0000000000..1b92ce650f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-1.js
@@ -0,0 +1,18 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2019 Jason Orendorff. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- error when method on same line
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  field /* no ASI here */ method(){}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-2.js b/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-2.js
new file mode 100644
index 0000000000..5751f38c57
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-asi-same-line-2.js
@@ -0,0 +1,18 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2019 Jason Orendorff. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: ASI test in field declarations -- error when method on same line after initializer
+esid: sec-automatic-semicolon-insertion
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  field = 1 /* no ASI here */ method(){}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-computed-name-static-propname-prototype.js b/js/src/tests/test262/language/expressions/class/elements/fields-computed-name-static-propname-prototype.js
new file mode 100644
index 0000000000..3bf563aa25
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-computed-name-static-propname-prototype.js
@@ -0,0 +1,34 @@
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: static class fields forbid PropName 'prototype' (no early error -- PropName of ComputedPropertyName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-static-fields-public]
+info: |
+  14.6.13 Runtime Semantics: ClassDefinitionEvaluation
+
+  ...
+  16. Perform MakeConstructor(F, false, proto).
+  ...
+
+  9.2.10 MakeConstructor ( F [ , writablePrototype [ , prototype ] ] )
+
+  6. Perform ! DefinePropertyOrThrow(F, "prototype", PropertyDescriptor { [[Value]]: prototype,
+    [[Writable]]: writablePrototype, [[Enumerable]]: false, [[Configurable]]: false }).
+---*/
+
+var x = "prototype";
+
+assert.throws(TypeError, function() {
+  (0, class {
+    static [x] = 42;
+  });
+});
+
+assert.throws(TypeError, function() {
+  (0, class {
+    static [x];
+  });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-duplicate-privatenames.js b/js/src/tests/test262/language/expressions/class/elements/fields-duplicate-privatenames.js
new file mode 100644
index 0000000000..6882529c51
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-duplicate-privatenames.js
@@ -0,0 +1,25 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// Copyright 2017 Valerie Young.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Syntax error if the same private field defined twice
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+  Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+    It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries.
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  #x;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-propname-constructor.js b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-propname-constructor.js
new file mode 100644
index 0000000000..539bc22fb3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-propname-constructor.js
@@ -0,0 +1,30 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: class fields forbid PropName 'constructor' (early error -- PropName of IdentifierName is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    LiteralPropertyName : IdentifierName
+      Return StringValue of IdentifierName.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : FieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  constructor;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-constructor.js b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-constructor.js
new file mode 100644
index 0000000000..4ab66878ff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-constructor.js
@@ -0,0 +1,30 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: static class field forbid PropName 'constructor' (early error -- PropName of IdentifierName is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    LiteralPropertyName : IdentifierName
+      Return StringValue of IdentifierName.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : staticFieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "prototype" or "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static constructor;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-prototype.js b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-prototype.js
new file mode 100644
index 0000000000..57b75401b1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-literal-name-static-propname-prototype.js
@@ -0,0 +1,30 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: static class fields forbid PropName 'prototype' (early error -- PropName of IdentifierName is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    LiteralPropertyName : IdentifierName
+      Return StringValue of IdentifierName.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : staticFieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "prototype" or "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static prototype;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-multiple-definitions-static-private-methods-proxy.js b/js/src/tests/test262/language/expressions/class/elements/fields-multiple-definitions-static-private-methods-proxy.js
new file mode 100644
index 0000000000..73005dca8d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-multiple-definitions-static-private-methods-proxy.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Static private methods not accessible via default Proxy handler
+esid: prod-FieldDefinition
+features: [class, class-static-methods-private]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x(value) {
+    return 1;
+  }
+  static x() {
+    return this.#x();
+  }
+}
+
+var P = new Proxy(C, {});
+
+assert.sameValue(C.x(), 1);
+assert.throws(TypeError, function() {
+  P.x();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-run-once-on-double-super.js b/js/src/tests/test262/language/expressions/class/elements/fields-run-once-on-double-super.js
new file mode 100644
index 0000000000..5121028216
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-run-once-on-double-super.js
@@ -0,0 +1,43 @@
+// Copyright (C) 2018 Kevin Gibbons. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-super-keyword-runtime-semantics-evaluation
+description: >
+    when calling `super()` for a second time in a derived class, the super constructor is run twice but the field initializers are only run once
+info: |
+    [...]
+    6. Let result be ? Construct(func, argList, newTarget).
+    [...]
+    10. Perform ? thisER.BindThisValue(result).
+    11. Perform ? InitializeInstanceFields(result, F).
+    [...]
+features: [class-fields-public]
+---*/
+
+
+var baseCtorCalled = 0;
+var fieldInitCalled = 0;
+class Base {
+  constructor() {
+    ++baseCtorCalled;
+  }
+}
+
+var C = class extends Base {
+  field = ++fieldInitCalled;
+  constructor() {
+    assert.sameValue(baseCtorCalled, 0);
+    assert.sameValue(fieldInitCalled, 0);
+    super();
+    assert.sameValue(baseCtorCalled, 1);
+    assert.sameValue(fieldInitCalled, 1);
+    assert.throws(ReferenceError, () => super());
+  }
+};
+
+new C();
+
+assert.sameValue(baseCtorCalled, 2);
+assert.sameValue(fieldInitCalled, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-string-name-propname-constructor.js b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-propname-constructor.js
new file mode 100644
index 0000000000..78b22eb338
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-propname-constructor.js
@@ -0,0 +1,31 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: class fields forbid PropName 'constructor' (early error -- PropName of StringLiteral is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    ...
+    LiteralPropertyName : StringLiteral
+      Return the String value whose code units are the SV of the StringLiteral.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : FieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  'constructor';
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-constructor.js b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-constructor.js
new file mode 100644
index 0000000000..8971ec32ca
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-constructor.js
@@ -0,0 +1,31 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: static class field forbid PropName 'constructor' (early error -- PropName of StringLiteral is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    ...
+    LiteralPropertyName : StringLiteral
+      Return the String value whose code units are the SV of the StringLiteral.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : staticFieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "prototype" or "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'constructor';
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-prototype.js b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-prototype.js
new file mode 100644
index 0000000000..9bcff628d4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/fields-string-name-static-propname-prototype.js
@@ -0,0 +1,31 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2017 Valerie Young. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: static class fields forbid PropName 'prototype' (early error -- PropName of StringLiteral is forbidden)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: PropName
+    ...
+    LiteralPropertyName : StringLiteral
+      Return the String value whose code units are the SV of the StringLiteral.
+
+
+    // This test file tests the following early error:
+    Static Semantics: Early Errors
+
+      ClassElement : staticFieldDefinition;
+        It is a Syntax Error if PropName of FieldDefinition is "prototype" or "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'prototype';
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/browser.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/shell.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..fcf32f758b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-binding-identifier-escaped.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    var yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier.js
new file mode 100644
index 0000000000..9fdcc8f96c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-binding-identifier.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-binding-identifier.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    var yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..5ddaeeb8d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-identifier-reference-escaped.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    void yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference.js
new file mode 100644
index 0000000000..cb16f4c245
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-identifier-reference.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-identifier-reference.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    void yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..72e84c4183
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-label-identifier-escaped.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    yi\u0065ld: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier.js
new file mode 100644
index 0000000000..db2a5e0cb6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-as-label-identifier.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-label-identifier.case
+// - src/generators/syntax/class-expr-static-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class { static *#gen() {
+    yield: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-spread-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-spread-strict-strict.js
new file mode 100644
index 0000000000..cd6cd6107d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-spread-strict-strict.js
@@ -0,0 +1,63 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-identifier-spread-strict.case
+// - src/generators/default/class-expr-static-private-method.template
+/*---
+description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [object-spread, generators, class-static-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+
+var C = class {
+    static *#gen() {
+        callCount += 1;
+        return {
+             ...(function() {
+                var yield;
+                throw new Test262Error();
+             }()),
+          }
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-strict-strict.js
new file mode 100644
index 0000000000..81fe417d6b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-identifier-strict-strict.js
@@ -0,0 +1,54 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-identifier-strict.case
+// - src/generators/default/class-expr-static-private-method.template
+/*---
+description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-static-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+
+var C = class {
+    static *#gen() {
+        callCount += 1;
+        (function() {
+            var yield;
+            throw new Test262Error();
+          }())
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-multiple.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-multiple.js
new file mode 100644
index 0000000000..f2a70c1161
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-multiple.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-arr-multiple.case
+// - src/generators/default/class-expr-static-private-method.template
+/*---
+description: Use yield value in a array spread position (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+includes: [compareArray.js]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+var item;
+
+var callCount = 0;
+
+var C = class {
+    static *#gen() {
+        callCount += 1;
+        yield [...yield yield];
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next(false);
+item = iter.next(['a', 'b', 'c']);
+item = iter.next(item.value);
+
+assert(compareArray(item.value, arr));
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-single.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-single.js
new file mode 100644
index 0000000000..65aff8bf0d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-arr-single.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-arr-single.case
+// - src/generators/default/class-expr-static-private-method.template
+/*---
+description: Use yield value in a array spread position (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+---*/
+var arr = ['a', 'b', 'c'];
+
+var callCount = 0;
+
+var C = class {
+    static *#gen() {
+        callCount += 1;
+        yield [...yield];
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next(false);
+var item = iter.next(arr);
+var value = item.value;
+
+assert.notSameValue(value, arr, 'value is a new array');
+assert(Array.isArray(value), 'value is an Array exotic object');
+assert.sameValue(value.length, 3)
+assert.sameValue(value[0], 'a');
+assert.sameValue(value[1], 'b');
+assert.sameValue(value[2], 'c');
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-obj.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-obj.js
new file mode 100644
index 0000000000..df77a3bc9a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method-static/yield-spread-obj.js
@@ -0,0 +1,67 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-obj.case
+// - src/generators/default/class-expr-static-private-method.template
+/*---
+description: Use yield value in a object spread position (Static generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [object-spread, generators, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      static PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+
+var callCount = 0;
+
+var C = class {
+    static *#gen() {
+        callCount += 1;
+        yield {
+            ...yield,
+            y: 1,
+            ...yield yield,
+          };
+    }
+    static get gen() { return this.#gen; }
+}
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+var iter = C.gen();
+
+iter.next();
+iter.next({ x: 42 });
+iter.next({ x: 'lol' });
+var item = iter.next({ y: 39 });
+
+assert.sameValue(item.value.x, 42);
+assert.sameValue(item.value.y, 39);
+assert.sameValue(Object.keys(item.value).length, 2);
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/browser.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/shell.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier-escaped.js
new file mode 100644
index 0000000000..72f6362fab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-binding-identifier-escaped.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    var yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier.js
new file mode 100644
index 0000000000..a6aaccdc52
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-binding-identifier.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-binding-identifier.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    var yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference-escaped.js
new file mode 100644
index 0000000000..85cbcd244e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-identifier-reference-escaped.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    void yi\u0065ld;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference.js
new file mode 100644
index 0000000000..baa4d0b057
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-identifier-reference.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-identifier-reference.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    void yield;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier-escaped.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier-escaped.js
new file mode 100644
index 0000000000..78e8706d36
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier-escaped.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-label-identifier-escaped.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    yi\u0065ld: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier.js
new file mode 100644
index 0000000000..ddac71bed8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-as-label-identifier.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-as-label-identifier.case
+// - src/generators/syntax/class-expr-private-method.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorMethod
+features: [generators, class-methods-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+$DONOTEVALUATE();
+
+var C = class {*#gen() {
+    yield: ;
+}};
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-spread-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-spread-strict-strict.js
new file mode 100644
index 0000000000..7a92addf85
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-spread-strict-strict.js
@@ -0,0 +1,67 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-identifier-spread-strict.case
+// - src/generators/default/class-expr-private-method.template
+/*---
+description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [object-spread, generators, class-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+
+var C = class {
+    *#gen() {
+        callCount += 1;
+        return {
+             ...(function() {
+                var yield;
+                throw new Test262Error();
+             }()),
+          }
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-strict-strict.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-strict-strict.js
new file mode 100644
index 0000000000..c398c6f9f4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-identifier-strict-strict.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+'use strict';
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-identifier-strict.case
+// - src/generators/default/class-expr-private-method.template
+/*---
+description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-methods-private]
+flags: [generated, onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+
+var C = class {
+    *#gen() {
+        callCount += 1;
+        (function() {
+            var yield;
+            throw new Test262Error();
+          }())
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-multiple.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-multiple.js
new file mode 100644
index 0000000000..f0ad21cd20
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-multiple.js
@@ -0,0 +1,66 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-arr-multiple.case
+// - src/generators/default/class-expr-private-method.template
+/*---
+description: Use yield value in a array spread position (Generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-methods-private]
+flags: [generated]
+includes: [compareArray.js]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+var item;
+
+var callCount = 0;
+
+var C = class {
+    *#gen() {
+        callCount += 1;
+        yield [...yield yield];
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next(false);
+item = iter.next(['a', 'b', 'c']);
+item = iter.next(item.value);
+
+assert(compareArray(item.value, arr));
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-single.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-single.js
new file mode 100644
index 0000000000..b9d2eaa2dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-arr-single.js
@@ -0,0 +1,68 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-arr-single.case
+// - src/generators/default/class-expr-private-method.template
+/*---
+description: Use yield value in a array spread position (Generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [generators, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+---*/
+var arr = ['a', 'b', 'c'];
+
+var callCount = 0;
+
+var C = class {
+    *#gen() {
+        callCount += 1;
+        yield [...yield];
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next(false);
+var item = iter.next(arr);
+var value = item.value;
+
+assert.notSameValue(value, arr, 'value is a new array');
+assert(Array.isArray(value), 'value is an Array exotic object');
+assert.sameValue(value.length, 3)
+assert.sameValue(value[0], 'a');
+assert.sameValue(value[1], 'b');
+assert.sameValue(value[2], 'c');
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-obj.js b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-obj.js
new file mode 100644
index 0000000000..b25ae3f9a5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/gen-private-method/yield-spread-obj.js
@@ -0,0 +1,71 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/generators/yield-spread-obj.case
+// - src/generators/default/class-expr-private-method.template
+/*---
+description: Use yield value in a object spread position (Generator private method as a ClassExpression element)
+esid: prod-GeneratorPrivateMethod
+features: [object-spread, generators, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      GeneratorMethod
+
+    14.4 Generator Function Definitions
+
+    GeneratorMethod :
+      * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+
+    Spread Properties
+
+    PropertyDefinition[Yield]:
+      (...)
+      ...AssignmentExpression[In, ?Yield]
+
+---*/
+
+var callCount = 0;
+
+var C = class {
+    *#gen() {
+        callCount += 1;
+        yield {
+            ...yield,
+            y: 1,
+            ...yield yield,
+          };
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+var iter = c.gen();
+
+iter.next();
+iter.next({ x: 42 });
+iter.next({ x: 'lol' });
+var item = iter.next({ y: 39 });
+
+assert.sameValue(item.value.x, 42);
+assert.sameValue(item.value.y, 39);
+assert.sameValue(Object.keys(item.value).length, 2);
+assert.sameValue(item.done, false);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")');
+assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/grammar-private-field-optional-chaining.js b/js/src/tests/test262/language/expressions/class/elements/grammar-private-field-optional-chaining.js
new file mode 100644
index 0000000000..85b8a6dc4b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/grammar-private-field-optional-chaining.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-field-optional-chaining.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName after '?.' is valid syntax (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, optional-chaining, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    OptionalChain[Yield, Await]:
+      `?.` `[` Expression[+In, ?Yield, ?Await] `]`
+      `?.` IdentifierName
+      `?.` Arguments[?Yield, ?Await]
+      `?.` TemplateLiteral[?Yield, ?Await, +Tagged]
+      `?.` PrivateIdentifier
+
+---*/
+
+
+var C = class {
+  #m = 'test262';
+
+  static access(obj) {
+    return obj?.#m;
+  }
+}
+
+let c = new C();
+
+assert.sameValue(C.access(c), 'test262');
+
+assert.sameValue(C.access(null), undefined);
+assert.sameValue(C.access(undefined), undefined);
+
+assert.throws(TypeError, function() {
+  C.access({});
+}, 'accessed private field from an ordinary object');
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/indirect-eval-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/indirect-eval-contains-arguments.js
new file mode 100644
index 0000000000..575b98ffd5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/indirect-eval-contains-arguments.js
@@ -0,0 +1,24 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-arguments.case
+// - src/class-elements/initializer-indirect-eval-arguments/cls-expr-fields-indirect-eval.template
+/*---
+description: No error if `arguments` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated, noStrict]
+info: |
+    For indirect eval, the "Additional Early Error Rules for Eval Inside Initializer"
+    (in #sec-performeval-rules-in-initializer) are NOT applicable.
+
+---*/
+
+
+var arguments = 1;
+var executed = false;
+var C = class {
+  x = (0, eval)('arguments;');
+}
+
+assert.sameValue(new C().x, arguments);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..2844b4a997
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-indirect-eval.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = (0, eval)('executed = true; new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/init-err-evaluation.js b/js/src/tests/test262/language/expressions/class/elements/init-err-evaluation.js
new file mode 100644
index 0000000000..ec68dde36c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/init-err-evaluation.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-evaluation.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Return abrupt completion evaluating the field initializer (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    [[Construct]] ( argumentsList, newTarget)
+
+    8. If kind is "base", then
+      a. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+      ...
+    ...
+    11. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    ...
+
+---*/
+var x = 0;
+function fn1() { x += 1; }
+function fn2() { throw new Test262Error(); }
+
+
+var C = class {
+  x = fn1();
+  y = fn2();
+  z = fn1();
+}
+
+assert.throws(Test262Error, function() {
+  new C();
+});
+
+assert.sameValue(x, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/init-value-defined-after-class.js b/js/src/tests/test262/language/expressions/class/elements/init-value-defined-after-class.js
new file mode 100644
index 0000000000..60bced7c00
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/init-value-defined-after-class.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-value-defined-after-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: The initializer value is defined after the class evaluation (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    [[Construct]] ( argumentsList, newTarget)
+
+    8. If kind is "base", then
+      a. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+      ...
+    ...
+    11. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    ...
+
+---*/
+var x = false;
+
+
+var C = class {
+  [x] = x;
+}
+
+var c1 = new C();
+
+x = true;
+var c2 = new C();
+
+verifyProperty(c1, "false", {
+  value: false,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+verifyProperty(c2, "false", {
+  value: true,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c1.hasOwnProperty("true"), false);
+assert.sameValue(c2.hasOwnProperty("true"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/init-value-incremental.js b/js/src/tests/test262/language/expressions/class/elements/init-value-incremental.js
new file mode 100644
index 0000000000..c9a6a17f84
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/init-value-incremental.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-value-incremental.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: The initializer value is defined during the class instatiation (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    27. For each ClassElement e in order from elements
+      ...
+      d. Append to fieldRecords the elements of fields.
+    ...
+    33. Let result be InitializeStaticFields(F).
+    ...
+
+    [[Construct]] ( argumentsList, newTarget)
+
+    8. If kind is "base", then
+      a. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+      ...
+    ...
+    11. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    ...
+
+---*/
+var x = 1;
+
+
+var C = class {
+  [x++] = x++;
+  [x++] = x++;
+}
+
+var c1 = new C();
+var c2 = new C();
+
+verifyProperty(c1, "1", {
+  value: 3,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+verifyProperty(c1, "2", {
+  value: 4,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+verifyProperty(c2, "1", {
+  value: 5,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+verifyProperty(c2, "2", {
+  value: 6,
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/intercalated-static-non-static-computed-fields.js b/js/src/tests/test262/language/expressions/class/elements/intercalated-static-non-static-computed-fields.js
new file mode 100644
index 0000000000..4eda07a71a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/intercalated-static-non-static-computed-fields.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/intercalated-static-non-static-computed-fields.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Computed class fields are executed in the order they are delcared, regardless it is static or instance field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+          i. Let field be the result of performing ClassElementEvaluation for e with arguments proto and false.
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for mClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+       ...
+       34. For each item fieldRecord in order from staticFields,
+         a. Perform ? DefineField(F, field).
+       ...
+
+    [[Construct]] (argumentsList, newTarget)
+      ...
+      8. If kind is "base", then
+        a. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
+        b. Let result be InitializeInstanceFields(thisArgument, F).
+        c. If result is an abrupt completion, then
+          i. Remove calleeContext from execution context stack and restore callerContext as the running execution context.
+          ii. Return Completion(result).
+
+---*/
+
+let i = 0;
+
+
+var C = class {
+  [i++] = i++;
+  static [i++] = i++;
+  [i++] = i++;
+}
+
+let c = new C();
+
+// It is important to notice that static field initializer will run before any instance initializer
+verifyProperty(c, "0", {
+  value: 4,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(c, "2", {
+  value: 5,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(C, "1", {
+  value: 3,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(i, 6);
+assert.sameValue(c.hasOwnProperty('1'), false);
+assert.sameValue(C.hasOwnProperty('0'), false);
+assert.sameValue(C.hasOwnProperty('2'), false);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..93be9a1b6c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-literal-name.template
+/*---
+description: Syntax error if `arguments` used in class field (literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..f80644bbf4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/literal-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-literal-name.template
+/*---
+description: Syntax error if `super()` used in class field (literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-names.js
new file mode 100644
index 0000000000..d9260967ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-names.js
@@ -0,0 +1,113 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Computed property names (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  [x] = 42; [10] = "meep"; ["not initialized"]
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-symbol-names.js
new file mode 100644
index 0000000000..8206844002
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-computed-symbol-names.js
@@ -0,0 +1,108 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Computed property symbol names (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  [x]; [y] = 42
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..3ee863d24d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,143 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: PrivateName Static Semantics, StringValue (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;
+  m2() { return 39 }
+  bar = "barbaz";
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names-asi.js
new file mode 100644
index 0000000000..eb00c86bfd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names-asi.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Literal property names with ASI (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  a
+  b = 42;
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names.js
new file mode 100644
index 0000000000..c61ddadeae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-literal-names.js
@@ -0,0 +1,111 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Literal property names (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  a; b = 42;
+  c = fn
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-field-usage.js
new file mode 100644
index 0000000000..453d42f56f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-field-usage.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: PrivateName CallExpression usage (private field) (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #m = 'test262';
+  m2() { return 39 }
+  bar = "barbaz";
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-getter-usage.js
new file mode 100644
index 0000000000..d5fa734a88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-getter-usage.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  get #m() { return 'test262'; }
+  m2() { return 39 }
+  bar = "barbaz";
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-usage.js
new file mode 100644
index 0000000000..54d4201fac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-method-usage.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: PrivateName CallExpression usage (private method) (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #m() { return 'test262'; }
+  m2() { return 39 }
+  bar = "barbaz";
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-names.js
new file mode 100644
index 0000000000..204ece356f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-private-names.js
@@ -0,0 +1,105 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: private names (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #x; #y
+  m2() { return 39 }
+  bar = "barbaz";
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..5e12a6c3d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier-initializer.js
@@ -0,0 +1,120 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid FieldDefinition (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier.js
new file mode 100644
index 0000000000..f06cc9fcb3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-field-identifier.js
@@ -0,0 +1,127 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid FieldDefinition (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter-alt.js
new file mode 100644
index 0000000000..b7c538bcd2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter-alt.js
@@ -0,0 +1,162 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private getter (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter.js
new file mode 100644
index 0000000000..d4c9707d0e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-getter.js
@@ -0,0 +1,162 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private getter (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method-alt.js
new file mode 100644
index 0000000000..14a70dd7b7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method-alt.js
@@ -0,0 +1,161 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private method (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method.js
new file mode 100644
index 0000000000..adb638fdbe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-method.js
@@ -0,0 +1,161 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private method (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter-alt.js
new file mode 100644
index 0000000000..e0265c4097
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter-alt.js
@@ -0,0 +1,161 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private setter (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter.js
new file mode 100644
index 0000000000..7f402dc1cf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-private-setter.js
@@ -0,0 +1,161 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName as private setter (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..00ead76bf3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-alt.js
@@ -0,0 +1,143 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..6d2709e4b8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..661c991da6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier-initializer.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier.js
new file mode 100644
index 0000000000..19a4367713
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-privatename-identifier.js
@@ -0,0 +1,143 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J
+  m2() { return 39 }
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..a814011a38
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,167 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..1c7515038c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,168 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..389aee45f2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,167 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..ebafc2b497
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,168 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1f7fd194d0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,158 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..b30fe19c2d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,159 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..b44b764d62
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,156 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static Method PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..a24e437c24
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-method-privatename-identifier.js
@@ -0,0 +1,156 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static Method PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..a318a17a89
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0c8c11f775
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..6326b9af8f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..314270b09c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..8cd71eaaac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..7d8915aee6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1
+  m2() { return 39 }
+  bar = "barbaz";
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..c2cb0b58df
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-rs-static-privatename-identifier.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: Valid Static PrivateName (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  m2() { return 39 }
+  bar = "barbaz";
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-fields.js
new file mode 100644
index 0000000000..878eeaa6ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-fields.js
@@ -0,0 +1,105 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: static private fields (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #x; static #y
+  m2() { return 39 }
+  bar = "barbaz";
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..90daad9bac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods-with-fields.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: static private methods with fields (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  static #xVal; static #yVal
+  m2() { return 39 }
+  bar = "barbaz";
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods.js
new file mode 100644
index 0000000000..65c5738915
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-static-private-methods.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: static private methods (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  
+  m2() { return 39 }
+  bar = "barbaz";
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-string-literal-names.js
new file mode 100644
index 0000000000..1f44c17cc7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-definitions-string-literal-names.js
@@ -0,0 +1,118 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-multiple-definitions.template
+/*---
+description: String literal names (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  foo = "foobar";
+  m() { return 42 }
+  'a'; "b"; 'c' = 39;
+  "d" = 42
+  m2() { return 39 }
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert.sameValue(Object.hasOwnProperty.call(c, "m2"), false);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-names.js
new file mode 100644
index 0000000000..cd2f483356
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-names.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Computed property names (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"]
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-symbol-names.js
new file mode 100644
index 0000000000..002490ebdf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-computed-symbol-names.js
@@ -0,0 +1,86 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Computed property symbol names (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..52750054a4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: PrivateName Static Semantics, StringValue (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;
+  foo = "foobar"
+  bar = "barbaz";
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names-asi.js
new file mode 100644
index 0000000000..cd6c5d3d6b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names-asi.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Literal property names with ASI (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names.js
new file mode 100644
index 0000000000..759d3df62a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-literal-names.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Literal property names (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-field-usage.js
new file mode 100644
index 0000000000..9ca406b482
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-field-usage.js
@@ -0,0 +1,61 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: PrivateName CallExpression usage (private field) (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';
+  foo = "foobar"
+  bar = "barbaz";
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-getter-usage.js
new file mode 100644
index 0000000000..054a68255a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-getter-usage.js
@@ -0,0 +1,61 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }
+  foo = "foobar"
+  bar = "barbaz";
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-usage.js
new file mode 100644
index 0000000000..fec844e0c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-method-usage.js
@@ -0,0 +1,61 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: PrivateName CallExpression usage (private method) (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }
+  foo = "foobar"
+  bar = "barbaz";
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-names.js
new file mode 100644
index 0000000000..6a37690ae4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-private-names.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: private names (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y
+  foo = "foobar"
+  bar = "barbaz";
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..a0c042487d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier-initializer.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid FieldDefinition (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier.js
new file mode 100644
index 0000000000..458a8c1c0a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-field-identifier.js
@@ -0,0 +1,105 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid FieldDefinition (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter-alt.js
new file mode 100644
index 0000000000..45391585a4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter-alt.js
@@ -0,0 +1,140 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private getter (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter.js
new file mode 100644
index 0000000000..53fb51871d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-getter.js
@@ -0,0 +1,140 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private getter (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method-alt.js
new file mode 100644
index 0000000000..53eb2abd0e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method-alt.js
@@ -0,0 +1,139 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private method (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method.js
new file mode 100644
index 0000000000..eb1227986a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-method.js
@@ -0,0 +1,139 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private method (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter-alt.js
new file mode 100644
index 0000000000..83a97faddc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter-alt.js
@@ -0,0 +1,139 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private setter (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter.js
new file mode 100644
index 0000000000..0567e734e6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-private-setter.js
@@ -0,0 +1,139 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName as private setter (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d4cafd3602
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-alt.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..b1934728a6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,115 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..3ac338d814
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier-initializer.js
@@ -0,0 +1,115 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier.js
new file mode 100644
index 0000000000..5152aa0668
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J
+  foo = "foobar"
+  bar = "barbaz";
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..61621862dc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..c2240d8315
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..da071627d5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..f391f6c4d0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..29835ccec2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..13d1729e84
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0ba69ecf81
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static Method PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..fe02ba6fde
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-method-privatename-identifier.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static Method PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..9f9b01bcaf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..c73e18b866
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..a05b87ca62
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..e0eb495efd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..cca07f6282
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..03464083cb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1
+  foo = "foobar"
+  bar = "barbaz";
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..63810a905b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-rs-static-privatename-identifier.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: Valid Static PrivateName (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  foo = "foobar"
+  bar = "barbaz";
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-fields.js
new file mode 100644
index 0000000000..13dd5d3543
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-fields.js
@@ -0,0 +1,83 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: static private fields (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y
+  foo = "foobar"
+  bar = "barbaz";
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..bb0a59b197
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods-with-fields.js
@@ -0,0 +1,100 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: static private methods with fields (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal
+  foo = "foobar"
+  bar = "barbaz";
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods.js
new file mode 100644
index 0000000000..37aed88f8d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-static-private-methods.js
@@ -0,0 +1,87 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: static private methods (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  
+  foo = "foobar"
+  bar = "barbaz";
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-string-literal-names.js
new file mode 100644
index 0000000000..7bef09964e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/multiple-stacked-definitions-string-literal-names.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-multiple-stacked-definitions.template
+/*---
+description: String literal names (multiple stacked fields definitions through ASI)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42
+  foo = "foobar"
+  bar = "barbaz";
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.foo, "foobar");
+assert.sameValue(Object.hasOwnProperty.call(C, "foo"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "foo"), false);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert.sameValue(Object.hasOwnProperty.call(C, "bar"), false);
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "bar"), false);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-arguments.js
new file mode 100644
index 0000000000..6d88dd8a55
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-arguments.js
@@ -0,0 +1,37 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-arrow-fnc-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => {
+    var t = () => arguments;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-super.js
new file mode 100644
index 0000000000..8029180d3a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-arrow-fnc-init-err-contains-super.js
@@ -0,0 +1,30 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-arrow-fnc-nested.template
+/*---
+description: Syntax error if `super()` used in class field (arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => {
+    var t = () => super();
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..67b7fa87dc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-comp-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  [x] = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-super.js
new file mode 100644
index 0000000000..f5363a56bd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-comp-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-comp-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  [x] = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..faf9d55d95
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval-nested.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super.x;');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..c470bcaad9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-eval-nested.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super["x"];');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..4083514977
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-nested.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..d151738def
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-nested.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..f6c0ac7be6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-eval-nested.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = eval('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..c9bcc42789
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..808bf4e4f2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..21da0e7766
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..4c93e29fae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..c567ff5c21
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  x = (0, eval)('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..40f88d6d9a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-arguments.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-fields-eval-nested.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+let executed = false;
+let C = class {
+  x = () => {
+    let f = eval('executed = true; arguments;');
+    f();
+  }
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..d0ebf9bb92
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-direct-eval-err-contains-newtarget.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-eval-nested.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = eval('executed = true; new.target;');
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x, undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-arguments.js
new file mode 100644
index 0000000000..440c94c8a8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-equality-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (equality expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => {} == arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-super.js
new file mode 100644
index 0000000000..fad1183367
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-equality-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-equality-nested.template
+/*---
+description: Syntax error if `super()` used in class field (equality expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => {} == super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-contains-arguments.js
new file mode 100644
index 0000000000..037585ce47
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-contains-arguments.js
@@ -0,0 +1,23 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-arguments.case
+// - src/class-elements/initializer-indirect-eval-arguments/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: No error if `arguments` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public]
+flags: [generated, noStrict]
+info: |
+    For indirect eval, the "Additional Early Error Rules for Eval Inside Initializer"
+    (in #sec-performeval-rules-in-initializer) are NOT applicable.
+
+---*/
+
+
+var arguments = 1;
+var C = class {
+  x = () => (0, eval)('arguments;');
+}
+
+assert.sameValue(new C().x(), arguments);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..4524e19275
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-fields-indirect-eval-nested.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-public]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  x = (0, eval)('executed = true; new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..9d414b0dcd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-literal-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..fffa55a81c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-literal-name-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-literal-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-arguments.js
new file mode 100644
index 0000000000..23bfd5f98e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-arguments.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-arrow-fnc-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => {
+    var t = () => arguments;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-super.js
new file mode 100644
index 0000000000..0dbfb406f8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-arrow-fnc-init-err-contains-super.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-arrow-fnc-nested.template
+/*---
+description: Syntax error if `super()` used in class field (private field, arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => {
+    var t = () => super();
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..4e3c7ce922
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval-nested.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super.x;');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..dff21549ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval-nested.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super["x"];');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..57a2e71c00
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-nested.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..c60224a41f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,32 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-nested.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..ef84050622
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval-nested.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..ae93f31bff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..5a2e6b1b91
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..8060892c55
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..1e2f465fd2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,32 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..aaed9d221b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..47463f08ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-arguments.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-private-fields-eval-nested.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = () => eval('executed = true; arguments;');
+  x() {
+    this.#x();
+  }
+}
+
+assert.throws(SyntaxError, function() {
+  new C().x();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..a42ea1e4ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-direct-eval-err-contains-newtarget.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-eval-nested.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = eval('executed = true; new.target;');
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x, undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-contains-arguments.js
new file mode 100644
index 0000000000..ac8fc3ebbe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-contains-arguments.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-arguments.case
+// - src/class-elements/initializer-indirect-eval-arguments/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: No error if `arguments` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated, noStrict]
+info: |
+    For indirect eval, the "Additional Early Error Rules for Eval Inside Initializer"
+    (in #sec-performeval-rules-in-initializer) are NOT applicable.
+
+---*/
+
+
+var arguments = 1;
+var C = class {
+  #x = () => (0, eval)('arguments;');
+  x() {
+    return this.#x();
+  }
+}
+
+assert.sameValue(new C().x(), arguments);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..748c054d11
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-indirect-eval-nested.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = (0, eval)('executed = true; new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..6ee31b0cf1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (ClassElementName PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..118c28a2cd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-literal-name-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (ClassElementName PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-arguments.js
new file mode 100644
index 0000000000..d6141ffba6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-ternary-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => true ? {} : arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-super.js
new file mode 100644
index 0000000000..4d636d35fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-ternary-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-ternary-nested.template
+/*---
+description: Syntax error if `super()` used in class field (private field, ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => true ? {} : super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-arguments.js
new file mode 100644
index 0000000000..5a297a3a8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-typeof-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => typeof arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-super.js
new file mode 100644
index 0000000000..f5a9e9a22e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-private-typeof-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-typeof-nested.template
+/*---
+description: Syntax error if `super()` used in class field (private field, typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => typeof super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..2fb25520bd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-comp-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (static computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public, computed-property-names]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  static [x] = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-super.js
new file mode 100644
index 0000000000..9c155d9dd4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-comp-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-comp-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (static computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public, computed-property-names]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  static [x] = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-arguments.js
new file mode 100644
index 0000000000..bea5192253
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-literal-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (static literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-super.js
new file mode 100644
index 0000000000..28511188e2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-literal-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-literal-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (static literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-arguments.js
new file mode 100644
index 0000000000..e32a5f8458
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-private-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (static PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-super.js
new file mode 100644
index 0000000000..d507688db7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-private-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-private-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (static PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..48e23c129e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-string-literal-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (static string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'x' = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..ec8c7419e0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-static-string-literal-name-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-string-literal-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (static string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'x' = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..ed95c89fc9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-string-literal-name-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  'x' = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..421942f700
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-string-literal-name-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-string-literal-name-nested.template
+/*---
+description: Syntax error if `super()` used in class field (string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  'x' = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-arguments.js
new file mode 100644
index 0000000000..4f88d747d9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-ternary-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => true ? {} : arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-super.js
new file mode 100644
index 0000000000..cf7764091f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-ternary-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-ternary-nested.template
+/*---
+description: Syntax error if `super()` used in class field (ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => true ? {} : super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-arguments.js
new file mode 100644
index 0000000000..3bc14c08c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-arguments.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-typeof-nested.template
+/*---
+description: Syntax error if `arguments` used in class field (typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => typeof arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-super.js
new file mode 100644
index 0000000000..fb8c7b25ab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/nested-typeof-init-err-contains-super.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-typeof-nested.template
+/*---
+description: Syntax error if `super()` used in class field (typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = () => typeof super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-names.js
new file mode 100644
index 0000000000..6cad26eb47
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-names.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Computed property names (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"]
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-symbol-names.js
new file mode 100644
index 0000000000..17cf76aa18
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-computed-symbol-names.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Computed property symbol names (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..466ee6b62a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;
+  m() { return 42; }
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names-asi.js
new file mode 100644
index 0000000000..445d636ffe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names-asi.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Literal property names with ASI (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names.js
new file mode 100644
index 0000000000..da472acc54
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-literal-names.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Literal property names (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-field-usage.js
new file mode 100644
index 0000000000..0d51862f47
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-field-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';
+  m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..3d3e75b028
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-getter-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }
+  m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-usage.js
new file mode 100644
index 0000000000..f7ed26a7f8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-method-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }
+  m() { return 42; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-names.js
new file mode 100644
index 0000000000..5c515c5a35
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-private-names.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: private names (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y
+  m() { return 42; }
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..f649aade42
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier-initializer.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier.js
new file mode 100644
index 0000000000..a0ace6009d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-field-identifier.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..8133b18889
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter-alt.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter.js
new file mode 100644
index 0000000000..804d12cefc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-getter.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..9212067075
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method.js
new file mode 100644
index 0000000000..e9283f6fb3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-method.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..f36c0d7605
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter.js
new file mode 100644
index 0000000000..ce014f4dab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-private-setter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..a3ff4e1385
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..9ee10301dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1
+  m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..3387865149
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1
+  m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..70b50f05b5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..c9fdf6584a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }
+  m() { return 42; }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..48530cf5d9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..28b089b4b7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }
+  m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..04091168ee
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }
+  m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..1bab20e9ab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..ea966d1059
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,124 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d3ed0e9d29
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }
+  m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..43b8e0fb41
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }
+  m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..f465e49a5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d7dc95cd15
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..db8df29ce9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..02a09fa8e6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  m() { return 42; }
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..92810d6b2f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..bf0daf7ef2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1
+  m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..fced1bec17
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-rs-static-privatename-identifier.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-fields.js
new file mode 100644
index 0000000000..05900a28dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-fields.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: static private fields (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y
+  m() { return 42; }
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..1a39c7ddc9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods-with-fields.js
@@ -0,0 +1,87 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: static private methods with fields (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal
+  m() { return 42; }
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods.js
new file mode 100644
index 0000000000..a83fcd072f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-static-private-methods.js
@@ -0,0 +1,74 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: static private methods (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  
+  m() { return 42; }
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-string-literal-names.js
new file mode 100644
index 0000000000..b6d5a16544
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-no-sc-line-method-string-literal-names.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-new-no-sc-line-method.template
+/*---
+description: String literal names (field definitions followed by a method in a new line without a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-names.js
new file mode 100644
index 0000000000..2efd12c278
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-names.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Computed property names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"];
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..4a01b8529a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-computed-symbol-names.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Computed property symbol names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..a95f2f8345
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  *m() { return 42; }
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names-asi.js
new file mode 100644
index 0000000000..1ba86ae16e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names-asi.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Literal property names with ASI (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names.js
new file mode 100644
index 0000000000..5164f34574
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-literal-names.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Literal property names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-field-usage.js
new file mode 100644
index 0000000000..0d709bc157
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-field-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';;
+  *m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..6d4e9f6c34
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-getter-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; };
+  *m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-usage.js
new file mode 100644
index 0000000000..57c7286511
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-method-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; };
+  *m() { return 42; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-names.js
new file mode 100644
index 0000000000..5bd47bddc3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-private-names.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: private names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y;
+  *m() { return 42; }
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..3425f98da6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..9ae0a5e813
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-field-identifier.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..0c40451b3e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter-alt.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter.js
new file mode 100644
index 0000000000..5a668feab4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-getter.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..588e4fa837
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method.js
new file mode 100644
index 0000000000..d552988b66
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-method.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..2ebf07acc6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter.js
new file mode 100644
index 0000000000..2632999ead
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-private-setter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..36190d3a4b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..cefd3b90e2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  *m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..49d9745d42
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  *m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..463c8c0dc6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..2951c449ba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  *m() { return 42; }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..7258ebdeac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..af12038098
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  *m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..182d6cc5b2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  *m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..9c23f7408e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..b206ea774d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,124 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..88639caf27
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  *m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..5864947e99
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  *m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..12a6d3982a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  *m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..4a7290b08e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  *m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..7c5f1ca360
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  *m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..06bdcfd2de
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  *m() { return 42; }
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..7e50fd37d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  *m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..5bd31ddc07
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  *m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..17a005ff13
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  *m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-fields.js
new file mode 100644
index 0000000000..0881e1093d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-fields.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: static private fields (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y;
+  *m() { return 42; }
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..17acc4833a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods-with-fields.js
@@ -0,0 +1,87 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: static private methods with fields (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal;
+  *m() { return 42; }
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods.js
new file mode 100644
index 0000000000..67c8e257f8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-static-private-methods.js
@@ -0,0 +1,74 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: static private methods (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;
+  *m() { return 42; }
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-string-literal-names.js
new file mode 100644
index 0000000000..906f2e0cc5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-gen-string-literal-names.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-generator.template
+/*---
+description: String literal names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42;
+  *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-names.js
new file mode 100644
index 0000000000..84526f74f5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-names.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Computed property names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"];
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-symbol-names.js
new file mode 100644
index 0000000000..162d14c105
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-computed-symbol-names.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Computed property symbol names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..6ab2fd98ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  m() { return 42; }
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names-asi.js
new file mode 100644
index 0000000000..2404aac145
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names-asi.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Literal property names with ASI (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names.js
new file mode 100644
index 0000000000..f19417115c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-literal-names.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Literal property names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-field-usage.js
new file mode 100644
index 0000000000..d7fd36e006
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-field-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';;
+  m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..c39dd2054c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-getter-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; };
+  m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-usage.js
new file mode 100644
index 0000000000..eb203447a8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-method-usage.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; };
+  m() { return 42; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-names.js
new file mode 100644
index 0000000000..61c390960b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-private-names.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: private names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y;
+  m() { return 42; }
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..e6cf467178
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier-initializer.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier.js
new file mode 100644
index 0000000000..770fb02863
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-field-identifier.js
@@ -0,0 +1,92 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..1586bb425d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter-alt.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter.js
new file mode 100644
index 0000000000..6f57eeb8cf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-getter.js
@@ -0,0 +1,127 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..9099f6df2a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method.js
new file mode 100644
index 0000000000..f5716683df
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-method.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..15ce238c07
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter.js
new file mode 100644
index 0000000000..c8ad4f68e6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-private-setter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..6e58cf36aa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..4e00eef939
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..6a2d9cfdf0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..c76a759b98
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..507f60e9d3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  m() { return 42; }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..036d468de6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..b734772b04
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..a12470f05d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..fed1053c14
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..1509cf92ea
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,124 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..8a0b709668
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..21d3bf1ef8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..0e7c1dbacb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..92675c396d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..d3a58bcb30
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..fe953f72c4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  m() { return 42; }
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..2ccc4c5212
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..cad3483b0a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,103 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..ffe0f04e2c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-rs-static-privatename-identifier.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-fields.js
new file mode 100644
index 0000000000..cc08ba6974
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-fields.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: static private fields (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y;
+  m() { return 42; }
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..e7c3a6ccc2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods-with-fields.js
@@ -0,0 +1,87 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: static private methods with fields (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal;
+  m() { return 42; }
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods.js
new file mode 100644
index 0000000000..683d6f4a0d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-static-private-methods.js
@@ -0,0 +1,74 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: static private methods (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;
+  m() { return 42; }
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-string-literal-names.js
new file mode 100644
index 0000000000..6a231e2f28
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/new-sc-line-method-string-literal-names.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-new-sc-line-method.template
+/*---
+description: String literal names (field definitions followed by a method in a new line with a semicolon)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42;
+  m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/browser.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWJ.js
new file mode 100644
index 0000000000..df149e9fa2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-ZWJ.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - ZWJ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #ZW_\u200D_J() { return 'get string'; }
+  set #ZW_\u200D_J(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#ZW_‍_J;
+  }
+
+  setPrivateReference(value) {
+    this.#ZW_‍_J = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWNJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWNJ.js
new file mode 100644
index 0000000000..5c9a174396
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-ZWNJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-ZWNJ.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - ZWNJ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #ZW_\u200C_NJ() { return 'get string'; }
+  set #ZW_\u200C_NJ(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#ZW_‌_NJ;
+  }
+
+  setPrivateReference(value) {
+    this.#ZW_‌_NJ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u2118.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u2118.js
new file mode 100644
index 0000000000..aa6dc3bd88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u2118.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-u2118.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - u2118 (℘) (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #\u2118() { return 'get string'; }
+  set #\u2118(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#℘;
+  }
+
+  setPrivateReference(value) {
+    this.#℘ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u6F.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u6F.js
new file mode 100644
index 0000000000..0a32ccecf8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-escape-sequence-u6F.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-u6F.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - u6F (o) (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #\u{6F}() { return 'get string'; }
+  set #\u{6F}(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#o;
+  }
+
+  setPrivateReference(value) {
+    this.#o = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWJ.js
new file mode 100644
index 0000000000..3d7703c721
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-ZWJ.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - ZWJ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #ZW_‍_J() { return 'get string'; }
+  set #ZW_‍_J(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#ZW_‍_J;
+  }
+
+  setPrivateReference(value) {
+    this.#ZW_‍_J = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWNJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWNJ.js
new file mode 100644
index 0000000000..ba7811d80b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-ZWNJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-ZWNJ.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - ZWNJ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #ZW_‌_NJ() { return 'get string'; }
+  set #ZW_‌_NJ(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#ZW_‌_NJ;
+  }
+
+  setPrivateReference(value) {
+    this.#ZW_‌_NJ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-common.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-common.js
new file mode 100644
index 0000000000..a79ce7e97e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-common.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-common.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - common (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #test262() { return 'get string'; }
+  set #test262(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#test262;
+  }
+
+  setPrivateReference(value) {
+    this.#test262 = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-dollar.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-dollar.js
new file mode 100644
index 0000000000..9e209979f3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-dollar.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-dollar.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - $ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #$() { return 'get string'; }
+  set #$(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#$;
+  }
+
+  setPrivateReference(value) {
+    this.#$ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-u2118.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-u2118.js
new file mode 100644
index 0000000000..131e969acd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-u2118.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-u2118.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - ℘ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #℘() { return 'get string'; }
+  set #℘(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#℘;
+  }
+
+  setPrivateReference(value) {
+    this.#℘ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-underscore.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-underscore.js
new file mode 100644
index 0000000000..ebcbdc8d07
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/inst-private-name-underscore.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-underscore.case
+// - src/accessor-names/private/cls-private-expr-inst.template
+/*---
+description: Private IdentifierName - _ (Class expression, instance private method)
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  get #_() { return 'get string'; }
+  set #_(param) { stringSet = param; }
+
+  getPrivateReference() {
+    return this.#_;
+  }
+
+  setPrivateReference(value) {
+    this.#_ = value;
+  }
+};
+
+var inst = new C();
+
+assert.sameValue(inst.getPrivateReference(), 'get string');
+
+inst.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/shell.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWJ.js
new file mode 100644
index 0000000000..ed17b0ceed
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-ZWJ.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - ZWJ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #ZW_\u200D_J() { return 'get string'; }
+  static set #ZW_\u200D_J(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#ZW_‍_J;
+  }
+
+  static setPrivateReference(value) {
+    this.#ZW_‍_J = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWNJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWNJ.js
new file mode 100644
index 0000000000..00a577491c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-ZWNJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-ZWNJ.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - ZWNJ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #ZW_\u200C_NJ() { return 'get string'; }
+  static set #ZW_\u200C_NJ(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#ZW_‌_NJ;
+  }
+
+  static setPrivateReference(value) {
+    this.#ZW_‌_NJ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u2118.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u2118.js
new file mode 100644
index 0000000000..b02b0aa5df
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u2118.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-u2118.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - u2118 (℘) (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #\u2118() { return 'get string'; }
+  static set #\u2118(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#℘;
+  }
+
+  static setPrivateReference(value) {
+    this.#℘ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u6F.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u6F.js
new file mode 100644
index 0000000000..dec138477b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-escape-sequence-u6F.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-escape-sequence-u6F.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - u6F (o) (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #\u{6F}() { return 'get string'; }
+  static set #\u{6F}(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#o;
+  }
+
+  static setPrivateReference(value) {
+    this.#o = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWJ.js
new file mode 100644
index 0000000000..a4b4933c43
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-ZWJ.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - ZWJ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #ZW_‍_J() { return 'get string'; }
+  static set #ZW_‍_J(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#ZW_‍_J;
+  }
+
+  static setPrivateReference(value) {
+    this.#ZW_‍_J = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWNJ.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWNJ.js
new file mode 100644
index 0000000000..a0cca12394
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-ZWNJ.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-ZWNJ.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - ZWNJ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #ZW_‌_NJ() { return 'get string'; }
+  static set #ZW_‌_NJ(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#ZW_‌_NJ;
+  }
+
+  static setPrivateReference(value) {
+    this.#ZW_‌_NJ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-common.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-common.js
new file mode 100644
index 0000000000..2c99b82c9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-common.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-common.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - common (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #test262() { return 'get string'; }
+  static set #test262(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#test262;
+  }
+
+  static setPrivateReference(value) {
+    this.#test262 = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-dollar.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-dollar.js
new file mode 100644
index 0000000000..15854a83ab
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-dollar.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-dollar.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - $ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #$() { return 'get string'; }
+  static set #$(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#$;
+  }
+
+  static setPrivateReference(value) {
+    this.#$ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-u2118.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-u2118.js
new file mode 100644
index 0000000000..442723aefc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-u2118.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-u2118.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - ℘ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #℘() { return 'get string'; }
+  static set #℘(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#℘;
+  }
+
+  static setPrivateReference(value) {
+    this.#℘ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-underscore.js b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-underscore.js
new file mode 100644
index 0000000000..23aa11a011
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-accessor-name/static-private-name-underscore.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/accessor-names/private-name-underscore.case
+// - src/accessor-names/private/cls-private-expr-static.template
+/*---
+description: Private IdentifierName - _ (Class expression, static private method)
+features: [class, class-static-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+var stringSet;
+
+var C = class {
+  static get #_() { return 'get string'; }
+  static set #_(param) { stringSet = param; }
+
+  static getPrivateReference() {
+    return this.#_;
+  }
+
+  static setPrivateReference(value) {
+    this.#_ = value;
+  }
+};
+
+
+assert.sameValue(C.getPrivateReference(), 'get string');
+
+C.setPrivateReference('set string');
+assert.sameValue(stringSet, 'set string');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-arguments.js
new file mode 100644
index 0000000000..f8219b5add
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-arrow-fnc.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-super.js
new file mode 100644
index 0000000000..c216c3d791
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-arrow-fnc-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-arrow-fnc.template
+/*---
+description: Syntax error if `super()` used in class field (private field, arrow function expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, arrow-function, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = () => super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-async-generator-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-async-generator-method-name.js
new file mode 100644
index 0000000000..2557485c66
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-async-generator-method-name.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-async-generator-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private async generators methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    AsyncMethod : async [no LineTerminator here] * ClassElementName (UniqueFormalParameters) { AsyncFunctionBody }
+      1. Let propKey be the result of evaluating ClassElementName.
+      ...
+      12. Perform ? DefineOrdinaryMethod(key, homeObject, closure, enumerable).
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  async * #method() {};
+
+  getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-async-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-async-method-name.js
new file mode 100644
index 0000000000..ecbde9f434
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-async-method-name.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-async-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private async methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    AsyncMethod : async [no LineTerminator here] ClassElementName (UniqueFormalParameters) { AsyncFunctionBody }
+      1. Let propKey be the result of evaluating ClassElementName.
+      ...
+      10. Perform ? DefineOrdinaryMethod(key, homeObject, closure, enumerable).
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  async #method() {};
+
+  getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..053373c6f7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-1.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval.template
+/*---
+description: super.x in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super.x;');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..310515be01
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-contains-superproperty-2.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-eval.template
+/*---
+description: super['x'] in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super["x"];');
+};
+
+new C();
+
+assert.sameValue(executed, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..baff247702
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval.template
+/*---
+description: error if `super()['x']` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..1fd012c766
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall-2.js
@@ -0,0 +1,32 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval.template
+/*---
+description: error if `super().x` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..f66083c59a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-direct-eval-err-contains-supercall.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-eval.template
+/*---
+description: error if `super()` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = eval('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-1.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-1.js
new file mode 100644
index 0000000000..0e60d46bb3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-1.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval.template
+/*---
+description: super.x in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super.x;');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-2.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-2.js
new file mode 100644
index 0000000000..fb9d518e6d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-contains-superproperty-2.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-superproperty-2.case
+// - src/class-elements/initializer-eval-super-property/cls-expr-private-fields-indirect-eval.template
+/*---
+description: super['x'] in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Methods
+
+      These static semantics are applied by PerformEval when a direct eval call occurs outside of a MethodDefinition.
+
+      ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperProperty.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super["x"];');
+};
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-1.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-1.js
new file mode 100644
index 0000000000..84d7d5fe97
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-1.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-1.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval.template
+/*---
+description: error if `super()['x']` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super()["x"];');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-2.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-2.js
new file mode 100644
index 0000000000..e251654841
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall-2.js
@@ -0,0 +1,32 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall-2.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval.template
+/*---
+description: error if `super().x` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super().x;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall.js b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall.js
new file mode 100644
index 0000000000..5b4a33067a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-derived-cls-indirect-eval-err-contains-supercall.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-supercall.case
+// - src/class-elements/initializer-eval-super-call/cls-expr-private-fields-indirect-eval.template
+/*---
+description: error if `super()` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Constructor Methods
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of the constructor method of a ClassDeclaration or ClassExpression.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains SuperCall.
+
+---*/
+
+
+var executed = false;
+var A = class {}
+var C = class extends A {
+  #x = (0, eval)('executed = true; super();');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-arguments.js
new file mode 100644
index 0000000000..d9579ffcf9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-arguments.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-arguments.case
+// - src/class-elements/initializer-direct-eval-arguments/cls-expr-private-fields-eval.template
+/*---
+description: error if `arguments` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if ContainsArguments of StatementList is true.
+      ...
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = eval('executed = true; arguments;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..90e31637b4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-direct-eval-err-contains-newtarget.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-eval.template
+/*---
+description: error if `new.target` in StatementList of eval (direct eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = eval('executed = true; new.target;');
+}
+
+var c = new C();
+
+assert.sameValue(executed, true);
+assert.sameValue(c.x, undefined);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..f73851923c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-arrow-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private field is visible on inner arrow function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #f = 'Test262';
+
+  method() {
+    let arrowFunction = () => {
+      return this.#f;
+    }
+
+    return arrowFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private field from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-function.js
new file mode 100644
index 0000000000..3567256e4c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-access-on-inner-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private field is visible on inner function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #f = 'Test262';
+
+  method() {
+    let self = this;
+    function innerFunction() {
+      return self.#f;
+    }
+
+    return innerFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private field from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-after-optional-chain.js b/js/src/tests/test262/language/expressions/class/elements/private-field-after-optional-chain.js
new file mode 100644
index 0000000000..c241f67ca6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-after-optional-chain.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-after-optional-chain.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: OptionalChain.PrivateIdentifier is a valid syntax (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, optional-chaining, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    OptionalChain[Yield, Await] :
+      `?.` `[` Expression[+In, ?Yield, ?Await] `]`
+      `?.` IdentifierName
+      `?.` Arguments[?Yield, ?Await]
+      `?.` TemplateLiteral[?Yield, ?Await, +Tagged]
+      OptionalChain[?Yield, ?Await]  `[` Expression[+In, ?Yield, ?Await] `]`
+      OptionalChain[?Yield, ?Await] `.` IdentifierName
+      OptionalChain[?Yield, ?Await] Arguments[?Yield, ?Await]
+      OptionalChain[?Yield, ?Await] TemplateLiteral[?Yield, ?Await, +Tagged]
+      OptionalChain[?Yield, ?Await] `.` PrivateIdentifier
+
+---*/
+
+
+var C = class {
+  #f = 'Test262';
+
+  method(o) {
+    return o?.c.#f;
+  }
+}
+
+let c = new C();
+let o = {c: c};
+assert.sameValue(c.method(o), 'Test262');
+
+assert.sameValue(c.method(null), undefined);
+assert.sameValue(c.method(undefined), undefined);
+
+o = {c: new Object()};
+assert.throws(TypeError, function() {
+  c.method(o);
+}, 'accessed private field from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-as-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-as-arrow-function.js
new file mode 100644
index 0000000000..0e1e1163c2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-as-arrow-function.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-as-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Calling arrow function returned from private field access (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, arrow-function, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = () => 'test262';
+
+  method() {
+    return this.#m();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-arrow-function.js
new file mode 100644
index 0000000000..e6ae363940
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-arrow-function.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-as-async-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Calling async arrow function returned from private field access (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, async-functions, arrow-function, class]
+flags: [generated, async]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = async () => 'test262';
+
+  method() {
+    return this.#m();
+  }
+}
+
+let c = new C();
+
+c.method().then((value) => assert.sameValue(value, 'test262'))
+  .then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-function.js
new file mode 100644
index 0000000000..b87a3f24c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-as-async-function.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-as-async-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Calling async function returned from private field access (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, async-functions, class]
+flags: [generated, async]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = async function() { return 'test262'; };
+
+  method() {
+    return this.#m();
+  }
+}
+
+let c = new C();
+
+c.method().then((value) => assert.sameValue(value, 'test262'))
+  .then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-as-function.js b/js/src/tests/test262/language/expressions/class/elements/private-field-as-function.js
new file mode 100644
index 0000000000..7f0626f73c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-as-function.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-as-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Calling result returned from private field access (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = function () { return 'test262'; };
+
+  method() {
+    return this.#m();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-field-on-nested-class.js
new file mode 100644
index 0000000000..b7934576ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-field-on-nested-class.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #outer = 'test262';
+
+  B_withoutPrivateField = class {
+    method(o) {
+      return o.#outer;
+    }
+  }
+
+  B_withPrivateField = class {
+    #inner = 42;
+    method(o) {
+      return o.#outer;
+    }
+  }
+}
+
+let c = new C();
+let innerB1 = new c.B_withoutPrivateField();
+assert.sameValue(innerB1.method(c), 'test262');
+let innerB2 = new c.B_withPrivateField();
+assert.sameValue(innerB2.method(c), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-fields-proxy-default-handler-throws.js b/js/src/tests/test262/language/expressions/class/elements/private-fields-proxy-default-handler-throws.js
new file mode 100644
index 0000000000..65e95dba91
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-fields-proxy-default-handler-throws.js
@@ -0,0 +1,33 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-privatefieldget
+description: Private fields not accessible via default Proxy handler
+info: |
+  1. Assert: P is a Private Name value.
+  2. If O is not an object, throw a TypeError exception.
+  3. Let entry be PrivateFieldFind(P, O).
+  4. If entry is empty, throw a TypeError exception.
+
+features: [class, class-fields-private]
+---*/
+
+
+var C = class {
+  #x = 1;
+  x() {
+    return this.#x;
+  }
+}
+
+var c = new C();
+var p = new Proxy(c, {});
+
+assert.sameValue(c.x(), 1);
+assert.throws(TypeError, function() {
+  p.x();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-generator-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-generator-method-name.js
new file mode 100644
index 0000000000..173c2e2e86
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-generator-method-name.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-generator-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private generator methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    GeneratorMethod : * ClassElementName (UniqueFormalParameters) { GeneratorBody }
+      1. Let key be the result of evaluating ClassElementName.
+      ...
+      12. Return DefineOrdinaryMethod(key, homeObject, closure, enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  * #method() {};
+
+  getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..a7bca86e4e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-arrow-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter is visible on inner arrow function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'Test262'; }
+
+  method() {
+    let arrowFunction = () => {
+      return this.#m;
+    }
+
+    return arrowFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private accessor from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-function.js
new file mode 100644
index 0000000000..2c61874342
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-access-on-inner-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter is visible on inner function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'Test262'; }
+
+  method() {
+    let self = this;
+    function innerFunction() {
+      return self.#m;
+    }
+
+    return innerFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private accessor from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-is-not-a-own-property.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-is-not-a-own-property.js
new file mode 100644
index 0000000000..b251fad8a5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-is-not-a-own-property.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-is-not-a-own-property.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private getter is not stored as an own property of objects (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+        a. Let entry be PrivateFieldFind(P, O).
+        b. If entry is empty, throw a TypeError exception.
+        c. Return entry.[[PrivateFieldValue]].
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+---*/
+
+
+var C = class {
+  get #m() { return "Test262"; }
+
+  checkPrivateGetter() {
+    assert.sameValue(this.hasOwnProperty("#m"), false);
+    assert.sameValue("#m" in this, false);
+
+    assert.sameValue(this.__lookupGetter__("#m"), undefined);
+
+    assert.sameValue(this.#m, "Test262");
+
+    return 0;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.checkPrivateGetter(), 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-on-nested-class.js
new file mode 100644
index 0000000000..579dcd372f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-on-nested-class.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter is available on inner classes (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(c), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-field-on-nested-class.js
new file mode 100644
index 0000000000..1b283a1a88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-field-on-nested-class.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-shadowed-by-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter can be shadowed on inner classes by a private field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'outer class'; }
+
+  method() { return this.#m; }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    #m = 'test262';
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(innerB), 'test262');
+assert.sameValue(c.method(), 'outer class');
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'accessed inner class field from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-getter-on-nested-class.js
new file mode 100644
index 0000000000..6e34cc2356
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-getter-on-nested-class.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-shadowed-by-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter can be shadowed on inner classes by a private getter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'outer class'; }
+
+  method() { return this.#m; }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    get #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(innerB), 'test262');
+assert.sameValue(c.method(), 'outer class');
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'accessed inner class getter from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-method-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-method-on-nested-class.js
new file mode 100644
index 0000000000..49d416f99d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-method-on-nested-class.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-shadowed-by-method-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter can be shadowed on inner class by a private method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { throw new Test262Error(); }
+
+  B = class {
+    method(o) {
+      return o.#m();
+    }
+
+    #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(innerB), 'test262');
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'accessed inner class method from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-setter-on-nested-class.js
new file mode 100644
index 0000000000..9a53b043fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-getter-shadowed-by-setter-on-nested-class.js
@@ -0,0 +1,52 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-getter-shadowed-by-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private getter can be shadowed on inner classes by a private setter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'outer class'; }
+
+  method() { return this.#m; }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    set #m(v) { this._v = v; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+assert.throws(TypeError, function() {
+  innerB.method(innerB);
+}, '[[Get]] operation of an accessor without getter');
+
+assert.sameValue(c.method(), 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'access of inner class accessor from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-contains-arguments.js
new file mode 100644
index 0000000000..8a3a312976
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-contains-arguments.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-contains-arguments.case
+// - src/class-elements/initializer-indirect-eval-arguments/cls-expr-private-fields-indirect-eval.template
+/*---
+description: No error if `arguments` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, class-fields-public, class-fields-private]
+flags: [generated, noStrict]
+info: |
+    For indirect eval, the "Additional Early Error Rules for Eval Inside Initializer"
+    (in #sec-performeval-rules-in-initializer) are NOT applicable.
+
+---*/
+
+
+var arguments = 1;
+var C = class {
+  #x = (0, eval)('arguments;');
+  x() {
+    return this.#x;
+  }
+}
+
+assert.sameValue(new C().x(), arguments);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-err-contains-newtarget.js b/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-err-contains-newtarget.js
new file mode 100644
index 0000000000..22f261200c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-indirect-eval-err-contains-newtarget.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/eval-err-contains-newtarget.case
+// - src/class-elements/initializer-eval-newtarget/cls-expr-private-fields-indirect-eval.template
+/*---
+description: error if `new.target` in StatementList of eval (indirect eval)
+esid: sec-performeval-rules-in-initializer
+features: [class, new.target, class-fields-private]
+flags: [generated]
+info: |
+    Additional Early Error Rules for Eval Inside Initializer
+    These static semantics are applied by PerformEval when a direct eval call occurs inside a class field initializer.
+    ScriptBody : StatementList
+
+      ...
+      The remaining eval rules apply as outside a constructor, inside a method, and inside a function.
+
+    Additional Early Error Rules for Eval Outside Functions
+    These static semantics are applied by PerformEval when a direct eval call occurs outside of any function.
+    ScriptBody : StatementList
+
+      It is a Syntax Error if StatementList Contains NewTarget.
+
+---*/
+
+
+var executed = false;
+var C = class {
+  #x = (0, eval)('executed = true; new.target;');
+}
+
+assert.throws(SyntaxError, function() {
+  new C();
+});
+
+assert.sameValue(executed, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..1b0fb2e8aa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-name.template
+/*---
+description: Syntax error if `arguments` used in class field (ClassElementName PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..1fb07ce101
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-literal-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-name.template
+/*---
+description: Syntax error if `super()` used in class field (ClassElementName PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..d5db684195
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-arrow-function.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method is visible on inner arrow function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'Test262'; }
+
+  method() {
+    let arrowFunction = () => {
+      return this.#m();
+    }
+
+    return arrowFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private method from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-function.js
new file mode 100644
index 0000000000..c5a62b747a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-access-on-inner-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method is visible on inner function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'Test262'; }
+
+  method() {
+    let self = this;
+    function innerFunction() {
+      return self.#m();
+    }
+
+    return innerFunction();
+  }
+}
+
+let c = new C();
+assert.sameValue(c.method(), 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private method from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-comparison.js b/js/src/tests/test262/language/expressions/class/elements/private-method-comparison.js
new file mode 100644
index 0000000000..6412f89907
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-comparison.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-comparison.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateFieldGet of a private method returns the same function object to every instance of the same class (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+        a. Let entry be PrivateFieldFind(P, O).
+        b. If entry is empty, throw a TypeError exception.
+        c. Return entry.[[PrivateFieldValue]].
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }
+    
+  getPrivateMethod() {
+      return this.#m;
+  }
+
+}
+
+let c1 = new C();
+let c2 = new C();
+
+assert.sameValue(c1.getPrivateMethod(), c2.getPrivateMethod());
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-get-and-call.js b/js/src/tests/test262/language/expressions/class/elements/private-method-get-and-call.js
new file mode 100644
index 0000000000..2f5dad61e0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-get-and-call.js
@@ -0,0 +1,50 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-get-and-call.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Function returned by a private method can be called with other values as 'this' (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+        a. Let entry be PrivateFieldFind(P, O).
+        b. If entry is empty, throw a TypeError exception.
+        c. Return entry.[[PrivateFieldValue]].
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  #m() { return this._v; }
+    
+  getPrivateMethod() {
+      return this.#m;
+  }
+
+}
+
+let c = new C();
+
+let o1 = {_v: 'test262'};
+let o2 = {_v: 'foo'}; 
+assert.sameValue(c.getPrivateMethod().call(o1), 'test262');
+assert.sameValue(c.getPrivateMethod().call(o2), 'foo');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-is-not-a-own-property.js b/js/src/tests/test262/language/expressions/class/elements/private-method-is-not-a-own-property.js
new file mode 100644
index 0000000000..1c5b5a0f0c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-is-not-a-own-property.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-is-not-a-own-property.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private method is not stored as an own property of objects (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+        a. Let entry be PrivateFieldFind(P, O).
+        b. If entry is empty, throw a TypeError exception.
+        c. Return entry.[[PrivateFieldValue]].
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+---*/
+
+
+var C = class {
+  #m() { return "Test262"; }
+
+  checkPrivateMethod() {
+    assert.sameValue(this.hasOwnProperty("#m"), false);
+    assert.sameValue("#m" in this, false);
+
+    assert.sameValue(this.#m(), "Test262");
+    
+    return 0;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.checkPrivateMethod(), 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-length.js b/js/src/tests/test262/language/expressions/class/elements/private-method-length.js
new file mode 100644
index 0000000000..fba80bb7ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-length.js
@@ -0,0 +1,50 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-length.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private methods have length property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    MethodDefinition : ClassElementName( UniqueFormalParameters ) { FunctionBody }
+      1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+      2. ReturnIfAbrupt(methodDef).
+      3. Perform ? DefineOrdinaryMethod(methodDef.[[Key]], homeObject, methodDef.[[Closure]], _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    MethodDefinition : ClassElementName (UniqueFormalParameters) { FunctionBody }
+      ...
+      8. Let closure be FunctionCreate(kind, UniqueFormalParameters, FunctionBody, scope, privateScope, strict, prototype).
+      9. Perform MakeMethod(closure, object).
+      10. Return the Record{[[Key]]: propKey, [[Closure]]: closure}.
+
+---*/
+
+
+var C = class {
+  #method(a) {};
+
+  getPrivateMethod() {
+    return this.#method;
+  }
+
+}
+
+let c = new C();
+assert.sameValue(c.getPrivateMethod().length, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-method-on-nested-class.js
new file mode 100644
index 0000000000..38aa3df88f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-on-nested-class.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method is available on inner classes (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }
+
+  B = class {
+    method(o) {
+      return o.#m();
+    }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(c), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-referenced-from-static-method.js b/js/src/tests/test262/language/expressions/class/elements/private-method-referenced-from-static-method.js
new file mode 100644
index 0000000000..9added4d13
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-referenced-from-static-method.js
@@ -0,0 +1,41 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-referenced-from-static-method.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private method referenced from a static method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+          ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  #f() { return 42; }
+  static g() {
+    return this.#f();
+  }
+
+}
+
+assert.sameValue(C.g.call(new C()), 42);
+assert.throws(TypeError, function() {
+  C.g();
+}, 'Accessed private method from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-field-on-nested-class.js
new file mode 100644
index 0000000000..d60a3ba4cc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-field-on-nested-class.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-shadowed-by-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method can be shadowed on inner classes by a private field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'outer class'; }
+
+  method() { return this.#m(); }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    #m = 'test262';
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(innerB), 'test262');
+assert.sameValue(c.method(), 'outer class');
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'accessed inner class field from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-getter-on-nested-class.js
new file mode 100644
index 0000000000..0e1d95346b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-getter-on-nested-class.js
@@ -0,0 +1,50 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-shadowed-by-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method can be shadowed on inner classes by a private getter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'outer class'; }
+
+  method() { return this.#m(); }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    get #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(innerB), 'test262');
+assert.sameValue(c.method(), 'outer class');
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'accessed inner class getter from an object of outer class');
+assert.throws(TypeError, function() {
+  C.prototype.method.call(innerB);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-setter-on-nested-class.js
new file mode 100644
index 0000000000..21c15e879b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-by-setter-on-nested-class.js
@@ -0,0 +1,52 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-shadowed-by-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method can be shadowed on inner classes by a private setter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'outer class'; }
+
+  method() { return this.#m(); }
+
+  B = class {
+    method(o) {
+      return o.#m;
+    }
+
+    set #m(v) { this._v = v; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+assert.throws(TypeError, function() {
+  innerB.method(innerB);
+}, '[[Get]] operation of an accessor without getter');
+
+assert.sameValue(c.method(), 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'access of inner class accessor from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-on-nested-class.js
new file mode 100644
index 0000000000..162b8835f7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-method-shadowed-on-nested-class.js
@@ -0,0 +1,41 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-shadowed-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private method can be shadowed by inner class private method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { throw new Test262Error(); }
+
+  B = class {
+    method() {
+      return this.#m();
+    }
+
+    #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+assert.sameValue(innerB.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/browser.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-generator.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-generator.js
new file mode 100644
index 0000000000..48251449a6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-generator.js
@@ -0,0 +1,135 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-async-generator.case
+// - src/class-elements/private-methods/cls-expr.template
+/*---
+description: Private Async Generator (private method definitions in a class expression)
+esid: prod-MethodDefinition
+features: [async-iteration, class, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      GeneratorMethod
+      AsyncMethod
+      AsyncGeneratorMethod 
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){GeneratorBody}
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    ---
+
+    InitializeClassElements ( F, proto )
+
+    ...
+    5. For each item element in order from elements,
+      a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name.
+      b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype",
+        i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto.
+        ii. Perform ? DefineClassElement(receiver, element).
+
+    InitializeInstanceElements ( O, constructor )
+
+    ...
+    3. Let elements be the value of F's [[Elements]] internal slot.
+    4. For each item element in order from elements,
+      a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+        i. Perform ? DefineClassElement(O, element).
+
+    DefineClassElement (receiver, element)
+
+    ...
+    6. If key is a Private Name,
+      a. Perform ? PrivateFieldDefine(receiver, key, descriptor).
+
+    PrivateFieldDefine (P, O, desc)
+
+    ...
+    6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]].
+
+---*/
+var ctorPromise;
+
+
+
+/***
+ * template notes:
+ * 1. method should always be #m
+ * 2. the template provides c.ref/other.ref for external reference
+ */
+
+function hasProp(obj, name, expected, msg) {
+  var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name);
+  assert.sameValue(hasOwnProperty, expected, msg);
+
+  var hasProperty = Reflect.has(obj, name);
+  assert.sameValue(hasProperty, expected, msg);
+}
+
+var C = class {
+  async * #m() { return 42; }
+
+
+  get ref() { return this.#m; }
+
+  constructor() {
+    hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties');
+    assert.sameValue(typeof this.#m, 'function');
+    assert.sameValue(this.ref, this.#m, 'returns the same value');
+    assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms');
+
+    var ctorIter = this.#m();
+    var p = ctorIter.next();
+    ctorPromise = p.then(({ value, done }) => {
+        assert.sameValue(value, 42, 'return from generator method, inside ctor');
+        assert.sameValue(done, true, 'iterator is done, inside ctor');
+    }, $DONE);
+    assert.sameValue(this.#m.name, '#m', 'function name inside constructor');
+
+  }
+}
+
+var c = new C();
+var other = new C();
+
+hasProp(C.prototype, '#m', false, 'method is not defined in the prototype');
+hasProp(C, '#m', false, 'method is not defined in the contructor');
+hasProp(c, '#m', false, 'method cannot be seen outside of the class');
+
+/***
+ * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+ * 
+ * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+ * ...
+ */
+assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance');
+
+assert.sameValue(c.ref.name, '#m', 'function name is preserved external reference');
+ctorPromise.then(() => {
+    // gets the returned async iterator from #m
+    var iter = c.ref();
+    return iter.next().then(({ value, done }) => {
+        assert.sameValue(value, 42, 'return from generator method');
+        assert.sameValue(done, true, 'iterator is done');
+    });
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-method.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-method.js
new file mode 100644
index 0000000000..82f2deb232
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-async-method.js
@@ -0,0 +1,130 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-async-method.case
+// - src/class-elements/private-methods/cls-expr.template
+/*---
+description: Private Async Method (private method definitions in a class expression)
+esid: prod-MethodDefinition
+features: [async-functions, class, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      GeneratorMethod
+      AsyncMethod
+      AsyncGeneratorMethod 
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){GeneratorBody}
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    ---
+
+    InitializeClassElements ( F, proto )
+
+    ...
+    5. For each item element in order from elements,
+      a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name.
+      b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype",
+        i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto.
+        ii. Perform ? DefineClassElement(receiver, element).
+
+    InitializeInstanceElements ( O, constructor )
+
+    ...
+    3. Let elements be the value of F's [[Elements]] internal slot.
+    4. For each item element in order from elements,
+      a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+        i. Perform ? DefineClassElement(O, element).
+
+    DefineClassElement (receiver, element)
+
+    ...
+    6. If key is a Private Name,
+      a. Perform ? PrivateFieldDefine(receiver, key, descriptor).
+
+    PrivateFieldDefine (P, O, desc)
+
+    ...
+    6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]].
+
+---*/
+var ctorPromise;
+
+
+
+/***
+ * template notes:
+ * 1. method should always be #m
+ * 2. the template provides c.ref/other.ref for external reference
+ */
+
+function hasProp(obj, name, expected, msg) {
+  var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name);
+  assert.sameValue(hasOwnProperty, expected, msg);
+
+  var hasProperty = Reflect.has(obj, name);
+  assert.sameValue(hasProperty, expected, msg);
+}
+
+var C = class {
+  async #m() { return 42; }
+
+
+  get ref() { return this.#m; }
+
+  constructor() {
+    hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties');
+    assert.sameValue(typeof this.#m, 'function');
+    assert.sameValue(this.ref, this.#m, 'returns the same value');
+    assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms');
+
+    assert.sameValue(this.#m.name, '#m', 'function name inside constructor');
+    ctorPromise = this.#m().then(value => {
+        assert.sameValue(value, 42, 'already defined in the ctor');
+    }, $DONE);
+
+  }
+}
+
+var c = new C();
+var other = new C();
+
+hasProp(C.prototype, '#m', false, 'method is not defined in the prototype');
+hasProp(C, '#m', false, 'method is not defined in the contructor');
+hasProp(c, '#m', false, 'method cannot be seen outside of the class');
+
+/***
+ * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+ * 
+ * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+ * ...
+ */
+assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance');
+
+assert.sameValue(c.ref.name, '#m', 'function name is preserved external reference');
+ctorPromise.then(() => {
+    // gets the returned promise from #m
+    return c.ref().then(value => {
+        assert.sameValue(value, 42, 'function return');
+    });
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-generator.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-generator.js
new file mode 100644
index 0000000000..0ac3404b4e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-generator.js
@@ -0,0 +1,128 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-generator.case
+// - src/class-elements/private-methods/cls-expr.template
+/*---
+description: Private Generator (private method definitions in a class expression)
+esid: prod-MethodDefinition
+features: [generators, class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      GeneratorMethod
+      AsyncMethod
+      AsyncGeneratorMethod 
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){GeneratorBody}
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    ---
+
+    InitializeClassElements ( F, proto )
+
+    ...
+    5. For each item element in order from elements,
+      a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name.
+      b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype",
+        i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto.
+        ii. Perform ? DefineClassElement(receiver, element).
+
+    InitializeInstanceElements ( O, constructor )
+
+    ...
+    3. Let elements be the value of F's [[Elements]] internal slot.
+    4. For each item element in order from elements,
+      a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+        i. Perform ? DefineClassElement(O, element).
+
+    DefineClassElement (receiver, element)
+
+    ...
+    6. If key is a Private Name,
+      a. Perform ? PrivateFieldDefine(receiver, key, descriptor).
+
+    PrivateFieldDefine (P, O, desc)
+
+    ...
+    6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]].
+
+---*/
+
+
+/***
+ * template notes:
+ * 1. method should always be #m
+ * 2. the template provides c.ref/other.ref for external reference
+ */
+
+function hasProp(obj, name, expected, msg) {
+  var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name);
+  assert.sameValue(hasOwnProperty, expected, msg);
+
+  var hasProperty = Reflect.has(obj, name);
+  assert.sameValue(hasProperty, expected, msg);
+}
+
+var C = class {
+  * #m() { return 42; }
+
+
+  get ref() { return this.#m; }
+
+  constructor() {
+    hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties');
+    assert.sameValue(typeof this.#m, 'function');
+    assert.sameValue(this.ref, this.#m, 'returns the same value');
+    assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms');
+
+    var res = this.#m().next();
+    assert.sameValue(res.value, 42, 'return from generator method, inside ctor');
+    assert.sameValue(res.done, true, 'iterator is done, inside ctor');
+    assert.sameValue(this.#m.name, '#m', 'function name inside constructor');
+
+  }
+}
+
+var c = new C();
+var other = new C();
+
+hasProp(C.prototype, '#m', false, 'method is not defined in the prototype');
+hasProp(C, '#m', false, 'method is not defined in the contructor');
+hasProp(c, '#m', false, 'method cannot be seen outside of the class');
+
+/***
+ * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+ * 
+ * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+ * ...
+ */
+assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance');
+
+// gets the returned iterator from #m
+var res = c.ref().next();
+assert.sameValue(res.value, 42, 'return from generator method');
+assert.sameValue(res.done, true, 'iterator is done');
+assert.sameValue(c.ref.name, '#m', 'function name is preserved external reference');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method-initialize-order.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method-initialize-order.js
new file mode 100644
index 0000000000..53c6e4dec9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method-initialize-order.js
@@ -0,0 +1,143 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-method-initialize-order.case
+// - src/class-elements/private-methods/cls-expr.template
+/*---
+description: Private methods are added before any field initializer is run, even if they appear textually later (private method definitions in a class expression)
+esid: prod-MethodDefinition
+features: [class-methods-private, class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      GeneratorMethod
+      AsyncMethod
+      AsyncGeneratorMethod 
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){GeneratorBody}
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    ---
+
+    InitializeClassElements ( F, proto )
+
+    ...
+    5. For each item element in order from elements,
+      a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name.
+      b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype",
+        i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto.
+        ii. Perform ? DefineClassElement(receiver, element).
+
+    InitializeInstanceElements ( O, constructor )
+
+    ...
+    3. Let elements be the value of F's [[Elements]] internal slot.
+    4. For each item element in order from elements,
+      a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+        i. Perform ? DefineClassElement(O, element).
+
+    DefineClassElement (receiver, element)
+
+    ...
+    6. If key is a Private Name,
+      a. Perform ? PrivateFieldDefine(receiver, key, descriptor).
+
+    PrivateFieldDefine (P, O, desc)
+
+    ...
+    6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]].
+
+
+    InitializeInstanceElements ( O, constructor )
+      ...
+      4. For each item element in order from elements,
+        a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+          i. Perform ? DefineClassElement(O, element).
+      5. For each item element in order from elements,
+        a. If element.[[Placement]] is "own" and element.[[Kind]] is "field",
+          i. Assert: element.[[Descriptor]] does not have a [[Value]], [[Get]] or [[Set]] slot.
+          ii. Perform ? DefineClassElement(O, element).
+      6. Return.
+
+      EDITOR'S NOTE:
+      Value properties are added before initializers so that private methods are visible from all initializers.
+
+---*/
+
+
+/***
+ * template notes:
+ * 1. method should always be #m
+ * 2. the template provides c.ref/other.ref for external reference
+ */
+
+function hasProp(obj, name, expected, msg) {
+  var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name);
+  assert.sameValue(hasOwnProperty, expected, msg);
+
+  var hasProperty = Reflect.has(obj, name);
+  assert.sameValue(hasProperty, expected, msg);
+}
+
+var C = class {
+  a = this.#m();
+
+  #m() { return 42; }
+  get bGetter() { return this.#b; }
+
+  #b = this.#m();
+
+
+  get ref() { return this.#m; }
+
+  constructor() {
+    hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties');
+    assert.sameValue(typeof this.#m, 'function');
+    assert.sameValue(this.ref, this.#m, 'returns the same value');
+    assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms');
+
+    assert.sameValue(this.a, 42);
+    assert.sameValue(this.#b, 42);
+
+  }
+}
+
+var c = new C();
+var other = new C();
+
+hasProp(C.prototype, '#m', false, 'method is not defined in the prototype');
+hasProp(C, '#m', false, 'method is not defined in the contructor');
+hasProp(c, '#m', false, 'method cannot be seen outside of the class');
+
+/***
+ * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+ * 
+ * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+ * ...
+ */
+assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance');
+
+assert.sameValue(c.a, 42);
+assert.sameValue(c.bGetter, 42);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method.js
new file mode 100644
index 0000000000..eff2ef6d2a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-methods/prod-private-method.js
@@ -0,0 +1,124 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-method.case
+// - src/class-elements/private-methods/cls-expr.template
+/*---
+description: Private Method (private method definitions in a class expression)
+esid: prod-MethodDefinition
+features: [class, class-methods-private]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      GeneratorMethod
+      AsyncMethod
+      AsyncGeneratorMethod 
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){GeneratorBody}
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    ---
+
+    InitializeClassElements ( F, proto )
+
+    ...
+    5. For each item element in order from elements,
+      a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name.
+      b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype",
+        i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto.
+        ii. Perform ? DefineClassElement(receiver, element).
+
+    InitializeInstanceElements ( O, constructor )
+
+    ...
+    3. Let elements be the value of F's [[Elements]] internal slot.
+    4. For each item element in order from elements,
+      a. If element.[[Placement]] is "own" and element.[[Kind]] is "method",
+        i. Perform ? DefineClassElement(O, element).
+
+    DefineClassElement (receiver, element)
+
+    ...
+    6. If key is a Private Name,
+      a. Perform ? PrivateFieldDefine(receiver, key, descriptor).
+
+    PrivateFieldDefine (P, O, desc)
+
+    ...
+    6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]].
+
+---*/
+
+
+/***
+ * template notes:
+ * 1. method should always be #m
+ * 2. the template provides c.ref/other.ref for external reference
+ */
+
+function hasProp(obj, name, expected, msg) {
+  var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name);
+  assert.sameValue(hasOwnProperty, expected, msg);
+
+  var hasProperty = Reflect.has(obj, name);
+  assert.sameValue(hasProperty, expected, msg);
+}
+
+var C = class {
+  #m() { return 42; }
+
+
+  get ref() { return this.#m; }
+
+  constructor() {
+    hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties');
+    assert.sameValue(typeof this.#m, 'function');
+    assert.sameValue(this.ref, this.#m, 'returns the same value');
+    assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms');
+
+    assert.sameValue(this.#m(), 42, 'already defined in the ctor');
+    assert.sameValue(this.#m.name, '#m', 'function name inside constructor');
+
+  }
+}
+
+var c = new C();
+var other = new C();
+
+hasProp(C.prototype, '#m', false, 'method is not defined in the prototype');
+hasProp(C, '#m', false, 'method is not defined in the contructor');
+hasProp(c, '#m', false, 'method cannot be seen outside of the class');
+
+/***
+ * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+ * 
+ * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+ * ...
+ */
+assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance');
+
+// gets the returned value from #m
+assert.sameValue(c.ref(), 42, 'function return');
+assert.sameValue(c.ref.name, '#m', 'function name is preserved external reference');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-methods/shell.js b/js/src/tests/test262/language/expressions/class/elements/private-methods/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..76acbeb323
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-arrow-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter is visible on inner arrow function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method() {
+    let arrowFunction = () => {
+      this.#m = 'Test262';
+    }
+
+    arrowFunction();
+  }
+}
+
+let c = new C();
+c.method();
+assert.sameValue(c._v, 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private setter from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-function.js
new file mode 100644
index 0000000000..847dacdcc8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-access-on-inner-function.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter is visible on inner function of class scope (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method() {
+    let self = this;
+    function innerFunction() {
+      self.#m = 'Test262';
+    }
+
+    innerFunction();
+  }
+}
+
+let c = new C();
+c.method();
+assert.sameValue(c._v, 'Test262');
+let o = {};
+assert.throws(TypeError, function() {
+  c.method.call(o);
+}, 'accessed private setter from an ordinary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-is-not-a-own-property.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-is-not-a-own-property.js
new file mode 100644
index 0000000000..27f8cc72aa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-is-not-a-own-property.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-is-not-a-own-property.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private setter is not stored as an own property of objects (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+        a. Let entry be PrivateFieldFind(P, O).
+        b. If entry is empty, throw a TypeError exception.
+        c. Return entry.[[PrivateFieldValue]].
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  checkPrivateSetter() {
+    assert.sameValue(this.hasOwnProperty("#m"), false);
+    assert.sameValue("#m" in this, false);
+
+    assert.sameValue(this.__lookupSetter__("#m"), undefined);
+
+    this.#m = "Test262";
+    assert.sameValue(this._v, "Test262");
+
+    return 0;
+  }
+}
+
+let c = new C();
+assert.sameValue(c.checkPrivateSetter(), 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-on-nested-class.js
new file mode 100644
index 0000000000..a5894821de
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-on-nested-class.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter is available on inner classes (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  B = class {
+    method(o, v) {
+      o.#m = v;
+    }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+innerB.method(c, 'test262');
+assert.sameValue(c._v, 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-field-on-nested-class.js
new file mode 100644
index 0000000000..4f844db5b8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-field-on-nested-class.js
@@ -0,0 +1,54 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-shadowed-by-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter can be shadowed on inner classes by a private field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method(v) { this.#m = v; }
+
+  B = class {
+    method(o, v) {
+      o.#m = v;
+    }
+
+    get m() { return this.#m; }
+
+    #m;
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+innerB.method(innerB, 'test262');
+assert.sameValue(innerB.m, 'test262');
+
+c.method('outer class');
+assert.sameValue(c._v, 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c, 'foo');
+}, 'accessed inner class field from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-getter-on-nested-class.js
new file mode 100644
index 0000000000..5cece2d956
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-getter-on-nested-class.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-shadowed-by-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter can be shadowed on inner classes by a private getter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method(v) { this.#m = v; }
+
+  B = class {
+    method(o, v) {
+      o.#m = v;
+    }
+
+    get #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+assert.throws(TypeError, function() {
+  innerB.method(innerB);
+}, 'invalid [[Set]] of an acessor without setter');
+
+c.method('outer class');
+assert.sameValue(c._v, 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'invalid access of inner class getter from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-method-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-method-on-nested-class.js
new file mode 100644
index 0000000000..5c83e5d3e5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-method-on-nested-class.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-shadowed-by-method-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter can be shadowed on inner class by a private method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method(v) { this.#m = v; }
+
+  B = class {
+    method(o, v) {
+      o.#m = v;
+    }
+
+    #m() { return 'test262'; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+assert.throws(TypeError, function() {
+  innerB.method(innerB, 'foo');
+}, 'invalid [[Set]] operation in a private method');
+
+c.method('outer class');
+assert.sameValue(c._v, 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c);
+}, 'invalid access of inner class method from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-setter-on-nested-class.js
new file mode 100644
index 0000000000..5d59aa65d2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-setter-shadowed-by-setter-on-nested-class.js
@@ -0,0 +1,52 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-setter-shadowed-by-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private setter can be shadowed on inner classes by a private setter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  set #m(v) { this._v = v; }
+
+  method(v) { this.#m = v; }
+
+  B = class {
+    method(o, v) {
+      o.#m = v;
+    }
+
+    set #m(v) { this._v = v; }
+  }
+}
+
+let c = new C();
+let innerB = new c.B();
+
+innerB.method(innerB, 'test262');
+assert.sameValue(innerB._v, 'test262');
+
+c.method('outer class');
+assert.sameValue(c._v, 'outer class');
+
+assert.throws(TypeError, function() {
+  innerB.method(c, 'foo');
+}, 'access of inner class accessor from an object of outer class');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-async-generator-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-static-async-generator-method-name.js
new file mode 100644
index 0000000000..34937bea3d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-async-generator-method-name.js
@@ -0,0 +1,63 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-async-generator-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private static async generator methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    AsyncMethod : async [no LineTerminator here] * ClassElementName (UniqueFormalParameters) { AsyncFunctionBody }
+      ...
+      12. Perform ? DefineOrdinaryMethod(key, homeObject, closure, _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  static async * #method() {};
+
+  static getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+assert.sameValue(C.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-async-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-static-async-method-name.js
new file mode 100644
index 0000000000..cc013d5f69
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-async-method-name.js
@@ -0,0 +1,63 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-async-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private static async methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    AsyncMethod : async [no LineTerminator here] ClassElementName (UniqueFormalParameters) { AsyncFunctionBody }
+      ...
+      10. Perform ? DefineOrdinaryMethod(key, homeObject, closure, _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  static async #method() {};
+
+  static getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+assert.sameValue(C.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-field-on-nested-class.js
new file mode 100644
index 0000000000..1eb3a4e955
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-field-on-nested-class.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-field-shadowed-by-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static field can be shadowed on inner classes by a private field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class-fields-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m = 'outer class';
+
+  static fieldAccess() {
+    return this.#m;
+  }
+
+  static B = class {
+    #m = 'inner class';
+    static fieldAccess(o) {
+      return o.#m;
+    }
+  }
+}
+
+assert.sameValue(C.fieldAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.fieldAccess(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.fieldAccess(C);
+}, 'accessed private field from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-getter-on-nested-class.js
new file mode 100644
index 0000000000..737f41b497
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-getter-on-nested-class.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-field-shadowed-by-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static field can be shadowed on inner classes by a private getter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m = 'outer class';
+
+  static fieldAccess() {
+    return this.#m;
+  }
+
+  static B = class {
+    get #m() { return 'inner class'; }
+
+    static access(o) {
+      return o.#m;
+    }
+  }
+}
+
+assert.sameValue(C.fieldAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.access(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private getter from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-method-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-method-on-nested-class.js
new file mode 100644
index 0000000000..aa1b10a60f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-method-on-nested-class.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-field-shadowed-by-method-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static field can be shadowed on inner classes by a private method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m = () => 'outer class';
+
+  static fieldAccess() {
+    return this.#m();
+  }
+
+  static B = class {
+    #m() { return 'inner class'; }
+
+    static access(o) {
+      return o.#m();
+    }
+  }
+}
+
+assert.sameValue(C.fieldAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.access(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private method from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-setter-on-nested-class.js
new file mode 100644
index 0000000000..c85edfbd0a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-field-shadowed-by-setter-on-nested-class.js
@@ -0,0 +1,94 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-field-shadowed-by-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static field can be shadowed on inner classes by a private setter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m = 'outer class';
+
+  static fieldAccess() {
+    return this.#m;
+  }
+
+  static B = class {
+    set #m(v) { this._v = v; }
+
+    static access(o) {
+      o.#m = 'inner class';
+    }
+  }
+}
+
+assert.sameValue(C.fieldAccess(), 'outer class');
+
+let b = new C.B();
+
+C.B.access(b);
+assert.sameValue(b._v, 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private setter from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-field-usage-inside-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-field-usage-inside-nested-class.js
new file mode 100644
index 0000000000..5d54578797
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-field-usage-inside-nested-class.js
@@ -0,0 +1,82 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-field-usage-inside-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static field is available inside inner classes (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m = 'outer class';
+
+  static B = class {
+    static fieldAccess(o) {
+      return o.#m;
+    }
+  }
+}
+
+assert.sameValue(C.B.fieldAccess(C), 'outer class');
+assert.throws(TypeError, function() {
+  C.B.methodAccess(C.B);
+}, 'accessed static private field from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-generator-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-static-generator-method-name.js
new file mode 100644
index 0000000000..f5154d041d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-generator-method-name.js
@@ -0,0 +1,63 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-generator-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private static generator methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    GeneratorMethod : * ClassElementName (UniqueFormalParameters) { GeneratorBody }
+      ...
+      12. Perform ? DefineOrdinaryMethod(key, homeObject, closure, _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  static * #method() {};
+
+  static getPrivateMethod() {
+    return this.#method;
+  }
+}
+
+assert.sameValue(C.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-length.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-length.js
new file mode 100644
index 0000000000..fe5ff5d365
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-length.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-length.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private static methods have length property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    MethodDefinition : ClassElementName( UniqueFormalParameters ) { FunctionBody }
+      1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+      2. ReturnIfAbrupt(methodDef).
+      3. Perform ? DefineOrdinaryMethod(methodDef.[[Key]], homeObject, methodDef.[[Closure]], _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    MethodDefinition : ClassElementName (UniqueFormalParameters) { FunctionBody }
+      ...
+      8. Let closure be FunctionCreate(kind, UniqueFormalParameters, FunctionBody, scope, privateScope, strict, prototype).
+      9. Perform MakeMethod(closure, object).
+      10. Return the Record{[[Key]]: propKey, [[Closure]]: closure}.
+
+---*/
+
+
+var C = class {
+  static #method(a, b, c) {};
+
+  static getPrivateMethod() {
+    return this.#method;
+  }
+
+}
+
+assert.sameValue(C.getPrivateMethod().length, 3);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-name.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-name.js
new file mode 100644
index 0000000000..8c6c917c8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-name.js
@@ -0,0 +1,74 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private static methods have name property properly configured (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement : MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments ! Get(homeObject, "prototype"),enumerable, and "prototype".
+
+    ClassElement : static MethodDefinition
+      1. Return ClassElementEvaluation of MethodDefinition with arguments homeObject, enumerable and "static".
+
+    MethodDefinition : ClassElementName( UniqueFormalParameters ) { FunctionBody }
+      1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject.
+      2. ReturnIfAbrupt(methodDef).
+      3. Perform ? DefineOrdinaryMethod(methodDef.[[Key]], homeObject, methodDef.[[Closure]], _enumerable).
+
+    ClassElement : MethodDefinition
+    ClassElement : static MethodDefinition
+      1. Perform ? PropertyDefinitionEvaluation with parameters object and enumerable.
+      2. Return empty.
+
+    MethodDefinition : ClassElementName (UniqueFormalParameters) { FunctionBody }
+      1. Let propKey be the result of evaluating ClassElementName.
+      ...
+      8. Let closure be FunctionCreate(kind, UniqueFormalParameters, FunctionBody, scope, privateScope, strict, prototype).
+      9. Perform MakeMethod(closure, object).
+      10. Return the Record{[[Key]]: propKey, [[Closure]]: closure}.
+
+    ClassElementName : PrivateIdentifier
+      1. Let bindingName be StringValue of PrivateIdentifier.
+      ...
+      5. If scopeEnvRec's binding for bindingName is uninitialized,
+        a. Let field be NewPrivateName(bindingName).
+        b. Perform ! scopeEnvRec.InitializeBinding(bindingName, field).
+      6. Otherwise,
+        a. Let field be scopeEnvRec.GetBindingValue(bindingName).
+      7. Assert: field.[[Description]] is bindingName.
+      8. Return field.
+
+    DefineOrdinaryMethod(key, homeObject, closure, enumerable)
+      1. Perform SetFunctionName(closure, key).
+      2. If key is a Private Name,
+        a. Assert: key does not have a [[Kind]] field.
+        b. Set key.[[Kind]] to "method".
+        c. Set key.[[Value]] to closure.
+        d. Set key.[[Brand]] to homeObject.
+      3. Else,
+        a. Let desc be the PropertyDescriptor{[[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true}.
+        b. Perform ? DefinePropertyOrThrow(homeObject, key, desc).
+
+---*/
+
+
+var C = class {
+  static #method() {
+    return 'Test262';
+  };
+
+  static getPrivateMethod() {
+    return this.#method;
+  }
+
+}
+
+assert.sameValue(C.getPrivateMethod().name, "#method");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-field-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-field-on-nested-class.js
new file mode 100644
index 0000000000..84fe94c2dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-field-on-nested-class.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-shadowed-by-field-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static method can be shadowed on inner classes by a private field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class-fields-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m() { return 'outer class'; }
+
+  static methodAccess() {
+    return this.#m();
+  }
+
+  static B = class {
+    #m = 'inner class';
+    static fieldAccess(o) {
+      return o.#m;
+    }
+  }
+}
+
+assert.sameValue(C.methodAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.fieldAccess(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.fieldAccess(C);
+}, 'accessed private field from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-getter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-getter-on-nested-class.js
new file mode 100644
index 0000000000..55ea7495ea
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-getter-on-nested-class.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-shadowed-by-getter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static method can be shadowed on inner classes by a private getter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m() { return 'outer class'; }
+
+  static methodAccess() {
+    return this.#m();
+  }
+
+  static B = class {
+    get #m() { return 'inner class'; }
+
+    static access(o) {
+      return o.#m;
+    }
+  }
+}
+
+assert.sameValue(C.methodAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.access(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private getter from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-method-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-method-on-nested-class.js
new file mode 100644
index 0000000000..591cb9c56d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-method-on-nested-class.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-shadowed-by-method-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static method can be shadowed on inner classes by a private method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m() { return 'outer class'; }
+
+  static methodAccess() {
+    return this.#m();
+  }
+
+  static B = class {
+    #m() { return 'inner class'; }
+
+    static access(o) {
+      return o.#m();
+    }
+  }
+}
+
+assert.sameValue(C.methodAccess(), 'outer class');
+
+let b = new C.B();
+
+assert.sameValue(C.B.access(b), 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private method from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-setter-on-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-setter-on-nested-class.js
new file mode 100644
index 0000000000..7608609a85
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-shadowed-by-setter-on-nested-class.js
@@ -0,0 +1,94 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-shadowed-by-setter-on-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static method can be shadowed on inner classes by a private setter (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class-methods-private, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m() { return 'outer class'; }
+
+  static methodAccess() {
+    return this.#m();
+  }
+
+  static B = class {
+    set #m(v) { this._v = v; }
+
+    static access(o) {
+      o.#m = 'inner class';
+    }
+  }
+}
+
+assert.sameValue(C.methodAccess(), 'outer class');
+
+let b = new C.B();
+
+C.B.access(b);
+assert.sameValue(b._v, 'inner class');
+
+assert.throws(TypeError, function() {
+  C.B.access(C);
+}, 'accessed private setter from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-static-method-usage-inside-nested-class.js b/js/src/tests/test262/language/expressions/class/elements/private-static-method-usage-inside-nested-class.js
new file mode 100644
index 0000000000..bf9f7fe90c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-static-method-usage-inside-nested-class.js
@@ -0,0 +1,84 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-static-method-usage-inside-nested-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: PrivateName of private static method is available inside inner classes (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateIdentifier
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+      7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+      ...
+      15. Set the running execution context's LexicalEnvironment to classScope.
+      16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+      FieldDefinition : ClassElementName Initializer_opt
+        1. Let name be the result of evaluating ClassElementName.
+        2. ReturnIfAbrupt(name).
+        3. If Initializer_opt is present,
+          a. Let lex be the Lexical Environment of the running execution context.
+          b. Let formalParameterList be an instance of the production FormalParameters : [empty].
+          c. Let privateScope be the PrivateEnvironment of the running execution context.
+          d. Let initializer be FunctionCreate(Method, formalParameterList, Initializer, lex, true, privateScope).
+          e. Perform MakeMethod(initializer, homeObject).
+          f. Let isAnonymousFunctionDefinition be IsAnonymousFunctionDefinition(Initializer).
+        4. Else,
+          a. Let initializer be empty.
+          b. Let isAnonymousFunctionDeclaration be false.
+        5. Return a Record { [[Name]]: name, [[Initializer]]: initializer, [[IsAnonymousFunctionDefinition]]: isAnonymousFunctionDefinition }.
+
+    MemberExpression : MemberExpression.PrivateIdentifier
+      1. Let baseReference be the result of evaluating MemberExpression.
+      2. Let baseValue be ? GetValue(baseReference).
+      3. Let bv be ? RequireObjectCoercible(baseValue).
+      4. Let fieldNameString be the StringValue of PrivateIdentifier.
+      5. Return MakePrivateReference(bv, fieldNameString).
+
+    MakePrivateReference(baseValue, privateIdentifier)
+      1. Let env be the running execution context's PrivateEnvironment.
+      2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
+      3. Let privateName be GetValue(privateNameBinding).
+      4. Assert: privateName is a Private Name.
+      5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
+
+---*/
+
+
+var C = class {
+  static #m() {
+    return 'outer class';
+  }
+
+  static B = class {
+    static methodAccess(o) {
+      return o.#m();
+    }
+  }
+}
+
+assert.sameValue(C.B.methodAccess(C), 'outer class');
+assert.throws(TypeError, function() {
+  C.B.methodAccess(C.B);
+}, 'accessed static private method from an arbritary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-arguments.js
new file mode 100644
index 0000000000..cc452bce75
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-ternary.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = true ? {} : arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-super.js
new file mode 100644
index 0000000000..92a8318694
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-ternary-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-ternary.template
+/*---
+description: Syntax error if `super()` used in class field (private field, ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = true ? {} : super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-arguments.js
new file mode 100644
index 0000000000..a07f7fdf5d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-typeof.template
+/*---
+description: Syntax error if `arguments` used in class field (private field, typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = typeof arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-super.js
new file mode 100644
index 0000000000..043fc87e8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/private-typeof-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-private-typeof.template
+/*---
+description: Syntax error if `super()` used in class field (private field, typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = typeof super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-constructor.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-constructor.js
new file mode 100644
index 0000000000..c3756b8080
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-constructor.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-getter-before-super-return-in-constructor.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private getters are installed "when super returns" and no earlier (call in constructor) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  constructor() {
+      this.f();
+  }
+
+}
+
+class D extends C {
+    f() { this.#m; }
+    get #m() { return 42; }
+}
+
+assert(D.prototype.hasOwnProperty('f'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private getters are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-field-initializer.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-field-initializer.js
new file mode 100644
index 0000000000..b1e1443ab0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-getter-before-super-return-in-field-initializer.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-getter-before-super-return-in-field-initializer.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private getters are installed "when super returns" and no earlier (call in field initializer) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  f = this.g();
+
+}
+
+class D extends C {
+    g() { this.#m; }
+    get #m() { return 42; }
+}
+
+assert(D.prototype.hasOwnProperty('g'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private getters are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-constructor.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-constructor.js
new file mode 100644
index 0000000000..90664bbb19
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-constructor.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-method-before-super-return-in-constructor.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private methods are installed "when super returns" and no earlier (call in constructor) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  constructor() {
+      this.f();
+  }
+
+}
+
+class D extends C {
+    f() { this.#m(); }
+    #m() { return 42; }
+}
+
+assert(D.prototype.hasOwnProperty('f'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private methods are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-field-initializer.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-field-initializer.js
new file mode 100644
index 0000000000..f192db3e1b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-method-before-super-return-in-field-initializer.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-method-before-super-return-in-field-initializer.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private methods are installed "when super returns" and no earlier (call in field initializer) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  f = this.g();
+
+}
+
+class D extends C {
+    g() { this.#m(); }
+    #m() { return 42; }
+}
+
+assert(D.prototype.hasOwnProperty('g'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private methods are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-constructor.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-constructor.js
new file mode 100644
index 0000000000..20cc5b74b9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-constructor.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-setter-before-super-return-in-constructor.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private setters are installed "when super returns" and no earlier (call in constructor) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  constructor() {
+      this.f();
+  }
+
+}
+
+class D extends C {
+    f() { this.#m = 42; }
+    set #m(val) {}
+}
+
+assert(D.prototype.hasOwnProperty('f'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private setters are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-field-initializer.js b/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-field-initializer.js
new file mode 100644
index 0000000000..8f28a663e3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/prod-private-setter-before-super-return-in-field-initializer.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/prod-private-setter-before-super-return-in-field-initializer.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Private settters are installed "when super returns" and no earlier (call in field initializer) (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-public, class]
+flags: [generated]
+info: |
+    SuperCall: super Arguments
+      1. Let newTarget be GetNewTarget().
+      2. If newTarget is undefined, throw a ReferenceError exception.
+      3. Let func be ? GetSuperConstructor().
+      4. Let argList be ArgumentListEvaluation of Arguments.
+      5. ReturnIfAbrupt(argList).
+      6. Let result be ? Construct(func, argList, newTarget).
+      7. Let thisER be GetThisEnvironment( ).
+      8. Let F be thisER.[[FunctionObject]].
+      9. Assert: F is an ECMAScript function object.
+      10. Perform ? InitializeInstanceElements(result, F).
+
+    EDITOR'S NOTE:
+      Private fields are added to the object one by one, interspersed with
+      evaluation of the initializers, following the construction of the
+      receiver. These semantics allow for a later initializer to refer to
+      a previous private field.
+
+---*/
+
+
+var C = class {
+  f = this.g();
+
+}
+
+class D extends C {
+    g() { this.#m = 42; }
+    set #m(val) {}
+}
+
+assert(D.prototype.hasOwnProperty('g'));
+assert.throws(TypeError, function() {
+    var d = new D();
+}, 'private setters are not installed before super returns');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/redeclaration-symbol.js b/js/src/tests/test262/language/expressions/class/elements/redeclaration-symbol.js
new file mode 100644
index 0000000000..76543d7766
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/redeclaration-symbol.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/redeclaration-symbol.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Redeclaration of public fields with the same name (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js, compareArray.js]
+info: |
+    2.13.2 Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    30. Set the value of F's [[Fields]] internal slot to fieldRecords.
+    ...
+
+    2.14 [[Construct]] ( argumentsList, newTarget)
+
+    ...
+    8. If kind is "base", then
+      ...
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+    ...
+
+    2.9 InitializeInstanceFields ( O, constructor )
+
+    3. Let fieldRecords be the value of constructor's [[Fields]] internal slot.
+    4. For each item fieldRecord in order from fieldRecords,
+      a. If fieldRecord.[[static]] is false, then
+        i. Perform ? DefineField(O, fieldRecord).
+
+---*/
+var x = [];
+var y = Symbol();
+
+
+var C = class {
+  [y] = (x.push("a"), "old_value");
+  [y] = (x.push("b"), "same_value");
+  [y] = (x.push("c"), "same_value");
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: "same_value",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert(compareArray(x, ["a", "b", "c"]));
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/redeclaration.js b/js/src/tests/test262/language/expressions/class/elements/redeclaration.js
new file mode 100644
index 0000000000..14352deff3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/redeclaration.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/redeclaration.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Redeclaration of public fields with the same name (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js, compareArray.js]
+info: |
+    2.13.2 Runtime Semantics: ClassDefinitionEvaluation
+
+    ...
+    30. Set the value of F's [[Fields]] internal slot to fieldRecords.
+    ...
+
+    2.14 [[Construct]] ( argumentsList, newTarget)
+
+    ...
+    8. If kind is "base", then
+      ...
+      b. Let result be InitializeInstanceFields(thisArgument, F).
+    ...
+
+    2.9 InitializeInstanceFields ( O, constructor )
+
+    3. Let fieldRecords be the value of constructor's [[Fields]] internal slot.
+    4. For each item fieldRecord in order from fieldRecords,
+      a. If fieldRecord.[[static]] is false, then
+        i. Perform ? DefineField(O, fieldRecord).
+
+---*/
+var x = [];
+
+
+var C = class {
+  y = (x.push("a"), "old_value");
+  ["y"] = (x.push("b"), "another_value");
+  "y" = (x.push("c"), "same_value");
+  y = (x.push("d"), "same_value");
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+
+verifyProperty(c, "y", {
+  value: "same_value",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert(compareArray(x, ["a", "b", "c", "d"]));
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-names.js
new file mode 100644
index 0000000000..30a388c7b2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-names.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Computed property names (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"]
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-symbol-names.js
new file mode 100644
index 0000000000..1be73c60f2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-computed-symbol-names.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Computed property symbol names (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..c6f7c03f3e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,96 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: PrivateName Static Semantics, StringValue (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names-asi.js
new file mode 100644
index 0000000000..ce426f2474
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names-asi.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Literal property names with ASI (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names.js
new file mode 100644
index 0000000000..86c754c1c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-literal-names.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Literal property names (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-field-usage.js
new file mode 100644
index 0000000000..14e46ad26b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-field-usage.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: PrivateName CallExpression usage (private field) (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-getter-usage.js
new file mode 100644
index 0000000000..9c32d91119
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-getter-usage.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-usage.js
new file mode 100644
index 0000000000..f43b56cc8c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-method-usage.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: PrivateName CallExpression usage (private method) (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-names.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-names.js
new file mode 100644
index 0000000000..2df7244d4a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-private-names.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: private names (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..8a8084864b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier-initializer.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid FieldDefinition (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier.js
new file mode 100644
index 0000000000..67360b17c4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-field-identifier.js
@@ -0,0 +1,80 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid FieldDefinition (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J
+  
+}
+
+var c = new C();
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter-alt.js
new file mode 100644
index 0000000000..b6e8beaed4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter-alt.js
@@ -0,0 +1,115 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private getter (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter.js
new file mode 100644
index 0000000000..dce78c6159
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-getter.js
@@ -0,0 +1,115 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private getter (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method-alt.js
new file mode 100644
index 0000000000..f7e37875c3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method-alt.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private method (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method.js
new file mode 100644
index 0000000000..a04c43e25c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-method.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private method (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter-alt.js
new file mode 100644
index 0000000000..ce76e12a0c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter-alt.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private setter (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter.js
new file mode 100644
index 0000000000..b0a693c032
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-private-setter.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName as private setter (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5d98aa7462
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-alt.js
@@ -0,0 +1,96 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..06194c992a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..ea206c8a7c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier-initializer.js
@@ -0,0 +1,90 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier.js
new file mode 100644
index 0000000000..ab3e1bb583
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-privatename-identifier.js
@@ -0,0 +1,96 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..742a9126cc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..3965c1c1fd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..aff3ea04fc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..03e3239978
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,121 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static AsyncMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..50f112ebea
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,111 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..a87bd6aa6f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,112 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5daa86f19f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static Method PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..29ffd07c35
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-method-privatename-identifier.js
@@ -0,0 +1,109 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static Method PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..d7e98c8911
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..f40ca80b52
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..d4f8c7fb57
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..255005b797
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,91 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..ac241e0fb9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,91 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..290251f504
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,91 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..88127a606f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-rs-static-privatename-identifier.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: Valid Static PrivateName (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-fields.js
new file mode 100644
index 0000000000..3197107813
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-fields.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: static private fields (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..8df4f92eaf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods-with-fields.js
@@ -0,0 +1,75 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: static private methods with fields (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods.js
new file mode 100644
index 0000000000..4ee55bef42
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-static-private-methods.js
@@ -0,0 +1,62 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: static private methods (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/regular-definitions-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-string-literal-names.js
new file mode 100644
index 0000000000..7b218fbb3a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/regular-definitions-string-literal-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-regular-definitions.template
+/*---
+description: String literal names (regular fields defintion)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-names.js
new file mode 100644
index 0000000000..70774ec75f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-names.js
@@ -0,0 +1,90 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Computed property names (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  async *m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+    verifyProperty(c, "10", {
+      value: "meep",
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+    verifyProperty(c, "not initialized", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..9629cd82c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-computed-symbol-names.js
@@ -0,0 +1,85 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Computed property symbol names (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  async *m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+    verifyProperty(c, x, {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+    verifyProperty(c, y, {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..0c67cc1b7e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.o(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names-asi.js
new file mode 100644
index 0000000000..63b57e3b5c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names-asi.js
@@ -0,0 +1,75 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Literal property names with ASI (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names.js
new file mode 100644
index 0000000000..4ded10bb9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-literal-names.js
@@ -0,0 +1,88 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Literal property names (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  async *m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: fn,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-field-usage.js
new file mode 100644
index 0000000000..c0591de080
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-field-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..330a81fedd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-getter-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-usage.js
new file mode 100644
index 0000000000..5241054785
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-method-usage.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-names.js
new file mode 100644
index 0000000000..8df5fe06fb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-private-names.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: private names (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(c.x(), 42, "test 7");
+    assert.sameValue(c.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..ecdb3ab459
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,97 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..ac711b6ec1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-field-identifier.js
@@ -0,0 +1,104 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid FieldDefinition (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    c.$ = 1;
+    c._ = 1;
+    c.\u{6F} = 1;
+    c.\u2118 = 1;
+    c.ZW_\u200C_NJ = 1;
+    c.ZW_\u200D_J = 1;
+
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..9df50a29b2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter-alt.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter.js
new file mode 100644
index 0000000000..c688449273
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-getter.js
@@ -0,0 +1,138 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private getter (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..76d037ab9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method.js
new file mode 100644
index 0000000000..43004b27b1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-method.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private method (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..bc47cac77b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter.js
new file mode 100644
index 0000000000..db05ffadb8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-private-setter.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName as private setter (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..52ba4e2a2a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..49bb187a5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.℘(), 1);
+    assert.sameValue(c.ZW_‌_NJ(), 1);
+    assert.sameValue(c.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..4f1bf49170
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.\u2118(), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(), 1);
+    assert.sameValue(c.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..35886b66a7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-privatename-identifier.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..4a7905e6c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.o([1]).next(),
+      C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..b1718abb74
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.\u{6F}([1]).next(),
+      C.\u2118([1]).next(),
+      C.ZW_\u200C_NJ([1]).next(),
+      C.ZW_\u200D_J([1]).next(),
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..6c32a50eba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.o(1),
+      C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..2381b32df7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,146 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.\u{6F}(1),
+      C.\u2118(1),
+      C.ZW_\u200C_NJ(1),
+      C.ZW_\u200D_J(1),
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d9b67c2641
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.o([1]).next().value, 1);
+    assert.sameValue(C.℘([1]).next().value, 1);
+    assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..7790202904
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,135 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.\u{6F}([1]).next().value, 1);
+    assert.sameValue(C.\u2118([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..cf60f4bd17
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..dcfa159cfb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static Method PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..bdfe1e6f72
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..8725d34d35
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..9c83eaa1d2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..1473e3a915
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..d4cf98a57b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..7db44845e9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.\u2118(), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(), 1);
+    assert.sameValue(C.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..de2e6c3e5d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: Valid Static PrivateName (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-fields.js
new file mode 100644
index 0000000000..e6a621bdd2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-fields.js
@@ -0,0 +1,81 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: static private fields (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..7476029b2c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods-with-fields.js
@@ -0,0 +1,98 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: static private methods with fields (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 13");
+    assert.sameValue(C.y(), 43, "test 14");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods.js
new file mode 100644
index 0000000000..9a666e423a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-static-private-methods.js
@@ -0,0 +1,85 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: static private methods (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 86, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-string-literal-names.js
new file mode 100644
index 0000000000..55e6abb26a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-gen-string-literal-names.js
@@ -0,0 +1,95 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-gen.template
+/*---
+description: String literal names (field definitions after an async generator in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  async *m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().next().then(function(v) {
+  assert.sameValue(v.value, 42);
+  assert.sameValue(v.done, true);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: 39,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+    verifyProperty(c, "d", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-names.js
new file mode 100644
index 0000000000..b07e137f50
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-names.js
@@ -0,0 +1,89 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Computed property names (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  async m() { return 42; } [x] = 42; [10] = "meep"; ["not initialized"];
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+    verifyProperty(c, "10", {
+      value: "meep",
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+    verifyProperty(c, "not initialized", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-symbol-names.js
new file mode 100644
index 0000000000..fa071118b0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-computed-symbol-names.js
@@ -0,0 +1,84 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Computed property symbol names (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  async m() { return 42; } [x]; [y] = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+    verifyProperty(c, x, {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+    verifyProperty(c, y, {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+    assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..334661d9c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.o(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names-asi.js
new file mode 100644
index 0000000000..72093a9fde
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names-asi.js
@@ -0,0 +1,74 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Literal property names with ASI (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } a
+  b = 42;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names.js
new file mode 100644
index 0000000000..4cfe247e88
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-literal-names.js
@@ -0,0 +1,87 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Literal property names (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  async m() { return 42; } a; b = 42;
+  c = fn;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: fn,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-field-usage.js
new file mode 100644
index 0000000000..396b5183cb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-field-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #m = 'test262';;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..950a267465
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-getter-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } get #m() { return 'test262'; };
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-usage.js
new file mode 100644
index 0000000000..7e29ac0e5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-method-usage.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #m() { return 'test262'; };
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.method(), 'test262');
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-names.js
new file mode 100644
index 0000000000..51b7046cb6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-private-names.js
@@ -0,0 +1,80 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: private names (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #x; #y;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(c.x(), 42, "test 7");
+    assert.sameValue(c.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..4f662eb8aa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier-initializer.js
@@ -0,0 +1,96 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid FieldDefinition (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier.js
new file mode 100644
index 0000000000..0cfe6d21d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-field-identifier.js
@@ -0,0 +1,103 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid FieldDefinition (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    c.$ = 1;
+    c._ = 1;
+    c.\u{6F} = 1;
+    c.\u2118 = 1;
+    c.ZW_\u200C_NJ = 1;
+    c.ZW_\u200D_J = 1;
+
+    assert.sameValue(c.$, 1);
+    assert.sameValue(c._, 1);
+    assert.sameValue(c.\u{6F}, 1);
+    assert.sameValue(c.\u2118, 1);
+    assert.sameValue(c.ZW_\u200C_NJ, 1);
+    assert.sameValue(c.ZW_\u200D_J, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..e314bffffd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter-alt.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter.js
new file mode 100644
index 0000000000..6f8aecec7e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-getter.js
@@ -0,0 +1,137 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..df81c3ebb5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method-alt.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method.js
new file mode 100644
index 0000000000..6df25833ba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-method.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private method (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..e4679975a3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter-alt.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter.js
new file mode 100644
index 0000000000..d07b0ea7ba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-private-setter.js
@@ -0,0 +1,136 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0f7a376b9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.℘(1), 1);
+    assert.sameValue(c.ZW_‌_NJ(1), 1);
+    assert.sameValue(c.ZW_‍_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..722f6e7c5b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,112 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.℘(), 1);
+    assert.sameValue(c.ZW_‌_NJ(), 1);
+    assert.sameValue(c.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..e8f01736a3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,112 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(), 1);
+    assert.sameValue(c._(), 1);
+    assert.sameValue(c.\u{6F}(), 1);
+    assert.sameValue(c.\u2118(), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(), 1);
+    assert.sameValue(c.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..fa4aae5c09
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-privatename-identifier.js
@@ -0,0 +1,118 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(c.$(1), 1);
+    assert.sameValue(c._(1), 1);
+    assert.sameValue(c.\u{6F}(1), 1);
+    assert.sameValue(c.\u2118(1), 1);
+    assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..d82d25de51
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.o([1]).next(),
+      C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..a5f9bbc731
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$([1]).next(),
+      C._([1]).next(),
+      C.\u{6F}([1]).next(),
+      C.\u2118([1]).next(),
+      C.ZW_\u200C_NJ([1]).next(),
+      C.ZW_\u200D_J([1]).next(),
+    ]).then(results => {
+
+      assert.sameValue(results[0].value, 1);
+      assert.sameValue(results[1].value, 1);
+      assert.sameValue(results[2].value, 1);
+      assert.sameValue(results[3].value, 1);
+      assert.sameValue(results[4].value, 1);
+      assert.sameValue(results[5].value, 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..33d0fa80c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,144 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.o(1),
+      C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+      C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..aed76c842f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,145 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    Promise.all([
+      C.$(1),
+      C._(1),
+      C.\u{6F}(1),
+      C.\u2118(1),
+      C.ZW_\u200C_NJ(1),
+      C.ZW_\u200D_J(1),
+    ]).then(results => {
+
+      assert.sameValue(results[0], 1);
+      assert.sameValue(results[1], 1);
+      assert.sameValue(results[2], 1);
+      assert.sameValue(results[3], 1);
+      assert.sameValue(results[4], 1);
+      assert.sameValue(results[5], 1);
+
+    }).then($DONE, $DONE);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..b3633c9219
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,133 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.o([1]).next().value, 1);
+    assert.sameValue(C.℘([1]).next().value, 1);
+    assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..46f102e116
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,134 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$([1]).next().value, 1);
+    assert.sameValue(C._([1]).next().value, 1);
+    assert.sameValue(C.\u{6F}([1]).next().value, 1);
+    assert.sameValue(C.\u2118([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+    assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..2ec082e38e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..a2f41ca74d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..80693d063b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..6c78e703fe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.o(1), 1);
+    assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+    assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..b4b8cd90dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..3f2e1c9d05
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..ae7a8292dd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.℘(), 1);
+    assert.sameValue(C.ZW_‌_NJ(), 1);
+    assert.sameValue(C.ZW_‍_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..d8f7fbed6e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(), 1);
+    assert.sameValue(C._(), 1);
+    assert.sameValue(C.\u{6F}(), 1);
+    assert.sameValue(C.\u2118(), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(), 1);
+    assert.sameValue(C.ZW_\u200D_J(), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..079b69beac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-rs-static-privatename-identifier.js
@@ -0,0 +1,119 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: Valid Static PrivateName (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(C.$(1), 1);
+    assert.sameValue(C._(1), 1);
+    assert.sameValue(C.\u{6F}(1), 1);
+    assert.sameValue(C.\u2118(1), 1);
+    assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+    assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-fields.js
new file mode 100644
index 0000000000..4b0c2d31d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-fields.js
@@ -0,0 +1,80 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: static private fields (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #x; static #y;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private fields do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 43, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..418ac6868d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods-with-fields.js
@@ -0,0 +1,97 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: static private methods with fields (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } static #xVal; static #yVal;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 13");
+    assert.sameValue(C.y(), 43, "test 14");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+    assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods.js
new file mode 100644
index 0000000000..4ed7b1ffcc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-static-private-methods.js
@@ -0,0 +1,84 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: static private methods (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } ;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    // Test the private methods do not appear as properties before set to value
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+    assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+    // Test if private fields can be sucessfully accessed and set to value
+    assert.sameValue(C.x(), 42, "test 7");
+    assert.sameValue(C.y(), 86, "test 8");
+
+    // Test the private fields do not appear as properties before after set to value
+    assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+    assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-string-literal-names.js
new file mode 100644
index 0000000000..4e65a4b63c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-async-method-string-literal-names.js
@@ -0,0 +1,94 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-after-same-line-async-method.template
+/*---
+description: String literal names (field definitions after an async method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, async-functions]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  async m() { return 42; } 'a'; "b"; 'c' = 39;
+  "d" = 42;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+}, {restore: true});
+
+c.m().then(function(v) {
+  assert.sameValue(v, 42);
+
+  function assertions() {
+    // Cover $DONE handler for async cases.
+    function $DONE(error) {
+      if (error) {
+        throw new Test262Error('Test262:AsyncTestFailure')
+      }
+    }
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+    verifyProperty(c, "a", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+    verifyProperty(c, "b", {
+      value: undefined,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+    verifyProperty(c, "c", {
+      value: 39,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+
+    assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+    assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+    verifyProperty(c, "d", {
+      value: 42,
+      enumerable: true,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  return Promise.resolve(assertions());
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-names.js
new file mode 100644
index 0000000000..a8ab780c6a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Computed property names (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"]; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-symbol-names.js
new file mode 100644
index 0000000000..b5b7fd8d97
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Computed property symbol names (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..587bbf1b0e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;; *m() { return 42; }
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names-asi.js
new file mode 100644
index 0000000000..bc9719c730
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Literal property names with ASI (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names.js
new file mode 100644
index 0000000000..4650dc5fef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Literal property names (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-field-usage.js
new file mode 100644
index 0000000000..437c059d33
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';; *m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-getter-usage.js
new file mode 100644
index 0000000000..f5443d16ea
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }; *m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-usage.js
new file mode 100644
index 0000000000..da8ac6f6d0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }; *m() { return 42; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-names.js
new file mode 100644
index 0000000000..deff46eb67
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: private names (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y; *m() { return 42; }
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..2374ac69ff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier.js
new file mode 100644
index 0000000000..d514d0a26b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter-alt.js
new file mode 100644
index 0000000000..41d036ea98
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter.js
new file mode 100644
index 0000000000..b075f601c5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method-alt.js
new file mode 100644
index 0000000000..63ae01e967
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method.js
new file mode 100644
index 0000000000..6315c2dae1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter-alt.js
new file mode 100644
index 0000000000..b8491bffc3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter.js
new file mode 100644
index 0000000000..64486cc37b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+; *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..c0852ace05
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J; *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..59bf82f66c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1; *m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..9bf6094eb7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1; *m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier.js
new file mode 100644
index 0000000000..1865ad6311
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J; *m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..25c3e97503
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }; *m() { return 42; }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..7ff7d5e9e1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }; *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0e959f77d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }; *m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..e02b93cac1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }; *m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..ec8f1e09c0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }; *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..fb9698f0ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }; *m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..8a68c5694a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }; *m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..fe5d1ada89
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }; *m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..2ed2c33eb2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J; *m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..9fb0602b91
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J; *m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..8d638a403c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J; *m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..6c44cdcc74
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1; *m() { return 42; }
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..96fec88b26
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1; *m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..11748d870f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1; *m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..63f0921e52
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J; *m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-fields.js
new file mode 100644
index 0000000000..d0414d3865
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: static private fields (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y; *m() { return 42; }
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..189d2b9278
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: static private methods with fields (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal; *m() { return 42; }
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods.js
new file mode 100644
index 0000000000..1ba8ed061d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: static private methods (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ; *m() { return 42; }
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-gen-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-string-literal-names.js
new file mode 100644
index 0000000000..a45224dd5c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-gen-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-same-line-generator.template
+/*---
+description: String literal names (field definitions followed by a generator method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class, generators]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42; *m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m().next().value, 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-names.js
new file mode 100644
index 0000000000..639553c318
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-names.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Computed property names (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  [x] = 42; [10] = "meep"; ["not initialized"]; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-symbol-names.js
new file mode 100644
index 0000000000..cf5a452250
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-computed-symbol-names.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Computed property symbol names (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  [x]; [y] = 42; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..6b6de21a65
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: PrivateName Static Semantics, StringValue (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;; m() { return 42; }
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names-asi.js
new file mode 100644
index 0000000000..298a2f3bac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names-asi.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Literal property names with ASI (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  a
+  b = 42;; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names.js
new file mode 100644
index 0000000000..13b432a4b2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-literal-names.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Literal property names (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  a; b = 42;
+  c = fn; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-field-usage.js
new file mode 100644
index 0000000000..d73a02eb2d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-field-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (private field) (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m = 'test262';; m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-getter-usage.js
new file mode 100644
index 0000000000..d72942e37d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-getter-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  get #m() { return 'test262'; }; m() { return 42; }
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-usage.js
new file mode 100644
index 0000000000..3fbf7d6969
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-method-usage.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: PrivateName CallExpression usage (private method) (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  #m() { return 'test262'; }; m() { return 42; }
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-names.js
new file mode 100644
index 0000000000..897de69a3e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-private-names.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: private names (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x; #y; m() { return 42; }
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..e9d7c723fc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier-initializer.js
@@ -0,0 +1,84 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier.js
new file mode 100644
index 0000000000..2561fd6f26
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-field-identifier.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid FieldDefinition (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter-alt.js
new file mode 100644
index 0000000000..de08c6ae78
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter-alt.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter.js
new file mode 100644
index 0000000000..9a6feca60e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-getter.js
@@ -0,0 +1,126 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private getter (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method-alt.js
new file mode 100644
index 0000000000..0a33010e42
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method.js
new file mode 100644
index 0000000000..65e5003f5e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-method.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private method (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter-alt.js
new file mode 100644
index 0000000000..5d48657538
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter-alt.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter.js
new file mode 100644
index 0000000000..e31ff57c52
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-private-setter.js
@@ -0,0 +1,125 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName as private setter (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+; m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0478453faa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-alt.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J; m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..a2b64b9367
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1; m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..9b0541b1db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier-initializer.js
@@ -0,0 +1,101 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1; m() { return 42; }
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier.js
new file mode 100644
index 0000000000..42734250bb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-privatename-identifier.js
@@ -0,0 +1,107 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J; m() { return 42; }
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..4841867c9f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  }; m() { return 42; }
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..06fc4649c5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  }; m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..11150fc70e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,131 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  }; m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..7bdc52abcc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,132 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static AsyncMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  }; m() { return 42; }
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..8ec132378e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  }; m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..70ce58d40f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  }; m() { return 42; }
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..5def7b7f58
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  }; m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..861ca3f43f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-method-privatename-identifier.js
@@ -0,0 +1,120 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static Method PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  }; m() { return 42; }
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..282d904556
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J; m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..079740e7b3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J; m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..ab7c38cd54
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J; m() { return 42; }
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..badac8dd25
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1; m() { return 42; }
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..3f554b878d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1; m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..efe91c3498
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,102 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1; m() { return 42; }
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..8f7fc1dd87
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-rs-static-privatename-identifier.js
@@ -0,0 +1,108 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: Valid Static PrivateName (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J; m() { return 42; }
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-fields.js
new file mode 100644
index 0000000000..c3947aaf42
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-fields.js
@@ -0,0 +1,69 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: static private fields (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #x; static #y; m() { return 42; }
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..068231f7a6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods-with-fields.js
@@ -0,0 +1,86 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: static private methods with fields (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  static #xVal; static #yVal; m() { return 42; }
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods.js
new file mode 100644
index 0000000000..3a893841fb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-static-private-methods.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: static private methods (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ; m() { return 42; }
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/same-line-method-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/same-line-method-string-literal-names.js
new file mode 100644
index 0000000000..2715eae479
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/same-line-method-string-literal-names.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-same-line-method.template
+/*---
+description: String literal names (field definitions followed by a method in the same line)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  'a'; "b"; 'c' = 39;
+  "d" = 42; m() { return 42; }
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert.sameValue(c.m, C.prototype.m);
+assert.sameValue(Object.hasOwnProperty.call(c, "m"), false);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/shell.js b/js/src/tests/test262/language/expressions/class/elements/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field-assigned.js b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field-assigned.js
new file mode 100644
index 0000000000..208b48a8db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field-assigned.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-as-valid-instance-field-assigned.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static is a valid name of an instance field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static = "foo";
+}
+
+let c = new C();
+
+verifyProperty(c, "static", {
+  value: "foo",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field.js b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field.js
new file mode 100644
index 0000000000..8a548867c2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-instance-field.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-as-valid-instance-field.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static is a valid name of an instance field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  static;
+}
+
+let c = new C();
+
+verifyProperty(c, "static", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field-assigned.js b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field-assigned.js
new file mode 100644
index 0000000000..808acee9c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field-assigned.js
@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-as-valid-static-field-assigned.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static is a valid name of a static field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      static FieldDefinition ;
+
+---*/
+
+
+var C = class {
+  static static = "test262";
+}
+
+verifyProperty(C, "static", {
+  value: "test262",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field.js b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field.js
new file mode 100644
index 0000000000..a275a57f5a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-as-valid-static-field.js
@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-as-valid-static-field.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static is a valid name of a static field (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      static FieldDefinition ;
+
+---*/
+
+
+var C = class {
+  static static;
+}
+
+verifyProperty(C, "static", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..bec5785549
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-arguments.js
@@ -0,0 +1,36 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-comp-name.template
+/*---
+description: Syntax error if `arguments` used in class field (static computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public, computed-property-names]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  static [x] = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-super.js
new file mode 100644
index 0000000000..0e4f6b1a29
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-comp-name-init-err-contains-super.js
@@ -0,0 +1,29 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-comp-name.template
+/*---
+description: Syntax error if `super()` used in class field (static computed ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public, computed-property-names]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var x = "string";
+var C = class {
+  static [x] = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-length.js b/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-length.js
new file mode 100644
index 0000000000..d8ecaa6b07
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-length.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-anonymous-function-length.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Anonymous function in field initilizer have length properly set (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for m ClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      ...
+
+---*/
+
+
+var C = class {
+  static #field = (a, b) => undefined;
+  static field = function() {};
+
+  static accessPrivateField() {
+    return this.#field;
+  }
+
+}
+
+assert.sameValue(C.accessPrivateField().length, 2);
+assert.sameValue(C.field.length, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-name.js b/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-name.js
new file mode 100644
index 0000000000..d16729f7df
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-anonymous-function-name.js
@@ -0,0 +1,73 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-anonymous-function-name.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Anonymous function receives the name of static fields (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for m ClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      6. Else, let initValue be undefined.
+      7. If fieldRecord.[[IsAnonymousFunctionDefinition]] is true, then
+        a. Let hasNameProperty be ? HasOwnProperty(initValue, "name").
+        b. If hasNameProperty is false, perform SetFunctionName(initValue, fieldName).
+      8. If fieldName is a Private Name,
+        a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
+      9. Else,
+        a. Assert: IsPropertyKey(fieldName) is true.
+        b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
+      10. Return.
+
+---*/
+
+
+var C = class {
+  static #field = () => 'Test262';
+  static field = function() { return 42; };
+
+  static accessPrivateField() {
+    return this.#field;
+  }
+
+}
+
+assert.sameValue(C.accessPrivateField().name, "#field");
+assert.sameValue(C.field.name, "field");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-declaration.js b/js/src/tests/test262/language/expressions/class/elements/static-field-declaration.js
new file mode 100644
index 0000000000..cc3a227b20
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-declaration.js
@@ -0,0 +1,120 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-declaration.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static fields are defined using DefineField (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for mClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      6. Else, let initValue be undefined.
+      7. If fieldRecord.[[IsAnonymousFunctionDefinition]] is true, then
+        a. Let hasNameProperty be ? HasOwnProperty(initValue, "name").
+        b. If hasNameProperty is false, perform SetFunctionName(initValue, fieldName).
+      8. If fieldName is a Private Name,
+        a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
+      9. Else,
+        a. Assert: IsPropertyKey(fieldName) is true.
+        b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
+      10. Return.
+
+---*/
+var computed = 'h';
+
+
+var C = class {
+  static f = 'test262';
+  static 'g';
+  static 0 = 'bar';
+  static [computed];
+}
+
+let c = new C();
+
+assert.sameValue(c.f, undefined);
+assert.sameValue(c.g, undefined);
+assert.sameValue(c.h, undefined);
+assert.sameValue(c[0], undefined);
+
+assert.sameValue(Object.hasOwnProperty.call(c, 'f'), false);
+assert.sameValue(Object.hasOwnProperty.call(c, 'g'), false);
+assert.sameValue(Object.hasOwnProperty.call(c, 'h'), false);
+assert.sameValue(Object.hasOwnProperty.call(c, 0), false);
+
+verifyProperty(C, 'f', {
+  value: 'test262',
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(C, 'g', {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(C, 0, {
+  value: 'bar',
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+verifyProperty(C, 'h', {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-init-this-inside-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/static-field-init-this-inside-arrow-function.js
new file mode 100644
index 0000000000..d3cf3824e7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-init-this-inside-arrow-function.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-init-this-inside-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: this in static field initializers refers to class constructor (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for m ClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      6. Else, let initValue be undefined.
+      7. If fieldRecord.[[IsAnonymousFunctionDefinition]] is true, then
+        a. Let hasNameProperty be ? HasOwnProperty(initValue, "name").
+        b. If hasNameProperty is false, perform SetFunctionName(initValue, fieldName).
+      8. If fieldName is a Private Name,
+        a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
+      9. Else,
+        a. Assert: IsPropertyKey(fieldName) is true.
+        b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
+      10. Return.
+
+---*/
+
+
+var C = class {
+  static f = () => this;
+}
+
+assert.sameValue(C.f(), C);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-init-with-this.js b/js/src/tests/test262/language/expressions/class/elements/static-field-init-with-this.js
new file mode 100644
index 0000000000..114006ab54
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-init-with-this.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-init-with-this.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static fields initializer has `this` biding (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for m ClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      6. Else, let initValue be undefined.
+      7. If fieldRecord.[[IsAnonymousFunctionDefinition]] is true, then
+        a. Let hasNameProperty be ? HasOwnProperty(initValue, "name").
+        b. If hasNameProperty is false, perform SetFunctionName(initValue, fieldName).
+      8. If fieldName is a Private Name,
+        a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
+      9. Else,
+        a. Assert: IsPropertyKey(fieldName) is true.
+        b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
+      10. Return.
+
+---*/
+
+
+var C = class {
+  static f = 'test';
+  static g = this.f + '262';
+  static h = eval('this.g') + 'test';
+}
+
+assert.sameValue(C.f, 'test');
+assert.sameValue(C.g, 'test262');
+assert.sameValue(C.h, 'test262test');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-field-redeclaration.js b/js/src/tests/test262/language/expressions/class/elements/static-field-redeclaration.js
new file mode 100644
index 0000000000..2318f50f20
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-field-redeclaration.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-field-redeclaration.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static fields can be redeclared (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-fields-public, class]
+flags: [generated]
+info: |
+    Updated Productions
+
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassDefinitionEvaluation:
+      ...
+
+      27. Let staticFields be a new empty List.
+      28. For each ClassElement e in order from elements,
+        a. If IsStatic of e is false, then
+        ...
+        b. Else,
+          i. Let field be the result of performing PropertyDefinitionEvaluation for m ClassElementEvaluation for e with arguments F and false.
+        c. If field is an abrupt completion, then
+          ...
+        d. If field is not empty,
+          i. If IsStatic of e is false, append field to instanceFields.
+          ii. Otherwise, append field to staticFields.
+
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+      ...
+
+    DefineField(receiver, fieldRecord)
+      1. Assert: Type(receiver) is Object.
+      2. Assert: fieldRecord is a Record as created by ClassFieldDefinitionEvaluation.
+      3. Let name be fieldRecord.[[Name]].
+      4. Let initializer be fieldRecord.[[Initializer]].
+      5. If initializer is not empty, then
+        a. Let initValue be ? Call(initializer, receiver).
+      6. Else, let initValue be undefined.
+      7. If fieldRecord.[[IsAnonymousFunctionDefinition]] is true, then
+        a. Let hasNameProperty be ? HasOwnProperty(initValue, "name").
+        b. If hasNameProperty is false, perform SetFunctionName(initValue, fieldName).
+      8. If fieldName is a Private Name,
+        a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue).
+      9. Else,
+        a. Assert: IsPropertyKey(fieldName) is true.
+        b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue).
+      10. Return.
+
+---*/
+
+
+var C = class {
+  static f = 'test';
+  static f = this.f + '262';
+  static g() {
+    return 45;
+  };
+  static g = this.g();
+}
+
+assert.sameValue(C.f, 'test262');
+assert.sameValue(C.g, 45);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-arguments.js
new file mode 100644
index 0000000000..2b32142f7c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-literal-name.template
+/*---
+description: Syntax error if `arguments` used in class field (static literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static x = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-super.js
new file mode 100644
index 0000000000..2d0ac810c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-literal-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-literal-name.template
+/*---
+description: Syntax error if `super()` used in class field (static literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static x = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-fields-proxy-default-handler-throws.js b/js/src/tests/test262/language/expressions/class/elements/static-private-fields-proxy-default-handler-throws.js
new file mode 100644
index 0000000000..8533f5930a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-fields-proxy-default-handler-throws.js
@@ -0,0 +1,31 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-privatefieldget
+description: Static private fields not accessible via default Proxy handler
+info: |
+  1. Assert: P is a Private Name value.
+  2. If O is not an object, throw a TypeError exception.
+  3. Let entry be PrivateFieldFind(P, O).
+  4. If entry is empty, throw a TypeError exception.
+
+features: [class, class-static-fields-private]
+---*/
+
+var C = class {
+  static #x = 1;
+  static x() {
+    return this.#x;
+  }
+}
+
+var P = new Proxy(C, {});
+
+assert.sameValue(C.x(), 1);
+assert.throws(TypeError, function() {
+  P.x();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..754822df58
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-arrow-function.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-getter-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private getter access inside of an arrow function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static get #f() {
+    return 'Test262';
+  }
+
+  static access() {
+    const arrowFunction = () => {
+      return this.#f;
+    };
+
+    return arrowFunction();
+  }
+}
+
+assert.sameValue(C.access(), 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private getter from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-class.js b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-class.js
new file mode 100644
index 0000000000..5489e8e61c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-class.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-getter-access-on-inner-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private getter access inside of an inner class (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static get #f() {
+    return 'Test262';
+  }
+
+  static Inner = class {
+    static access(o) {
+      return o.#f;
+    }
+  }
+}
+
+assert.sameValue(C.Inner.access(C), 'Test262');
+assert.throws(TypeError, function() {
+  C.Inner.access(C.Inner);
+}, 'Accessed static private getter from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-function.js
new file mode 100644
index 0000000000..6461816804
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-getter-access-on-inner-function.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-getter-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private getter access inside of a nested function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static get #f() {
+    return 'Test262';
+  }
+
+  static access() {
+    const self = this;
+
+    function innerFunction() {
+      return self.#f;
+    }
+
+    return innerFunction();
+  }
+}
+
+assert.sameValue(C.access(), 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private getter from an arbitrary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/static-private-getter.js
new file mode 100644
index 0000000000..6843452384
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-getter.js
@@ -0,0 +1,58 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-getter.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private getter declaration and usage (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+      ...
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static get #f() {
+    return 'Test262';
+  }
+
+  static access() {
+    return this.#f;
+  }
+}
+
+assert.sameValue(C.access(), 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private getter from an arbitrary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-arguments.js
new file mode 100644
index 0000000000..3908bcdbec
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-private-name.template
+/*---
+description: Syntax error if `arguments` used in class field (static PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #x = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-super.js
new file mode 100644
index 0000000000..9802cde01c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-private-name.template
+/*---
+description: Syntax error if `super()` used in class field (static PrivateName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #x = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..ac5ab56899
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-arrow-function.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-method-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static private method access inside of an arrow function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+          ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static #f() { return 42; }
+  static g() {
+    const arrowFunction = () => {
+      return this.#f();
+    };
+
+    return arrowFunction();
+  }
+
+}
+
+assert.sameValue(C.g(), 42);
+assert.throws(TypeError, function() {
+  C.g.call({});
+}, 'Accessed static private method from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-function.js
new file mode 100644
index 0000000000..1e67071b40
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-method-access-on-inner-function.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-method-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static private method access inside of a nested function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+          ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static #f() { return 42; }
+  static g() {
+    const self = this;
+
+    function innerFunction() {
+      return self.#f();
+    }
+
+    return innerFunction();
+  }
+
+}
+
+assert.sameValue(C.g(), 42);
+assert.throws(TypeError, function() {
+  C.g.call({});
+}, 'Accessed static private method from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-method-and-instance-method-brand-check.js b/js/src/tests/test262/language/expressions/class/elements/static-private-method-and-instance-method-brand-check.js
new file mode 100644
index 0000000000..e579f93b63
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-method-and-instance-method-brand-check.js
@@ -0,0 +1,67 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-method-and-instance-method-brand-check.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Brand for static private names and instance private names are different (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-methods-private, class]
+flags: [generated]
+info: |
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      32. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] field is proto,
+        a. Set F.[[PrivateBrand]] to proto.
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      ...
+
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static #f() {
+    return 'static';
+  }
+
+  static access() {
+    return this.#f();
+  }
+
+  #instanceMethod() {
+    return 'instance';
+  }
+
+  instanceAccess() {
+    return this.#instanceMethod();
+  }
+}
+
+let c = new C();
+assert.sameValue(C.access(), 'static');
+assert.sameValue(c.instanceAccess(), 'instance');
+
+assert.throws(TypeError, function() {
+  C.access.call(c);
+}, 'Accessed static private method from instance of C');
+
+assert.throws(TypeError, function() {
+  c.instanceAccess.call(C);
+}, 'Accessed instance private method from C');
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-method-referenced-from-instance-method.js b/js/src/tests/test262/language/expressions/class/elements/static-private-method-referenced-from-instance-method.js
new file mode 100644
index 0000000000..87fca58a0e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-method-referenced-from-instance-method.js
@@ -0,0 +1,41 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-method-referenced-from-instance-method.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static private method referenced from an instance method (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+          ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static #f() { return 42; }
+  g() {
+    return this.#f();
+  }
+
+}
+
+assert.sameValue(new C().g.call(C), 42);
+assert.throws(TypeError, function() {
+  new C().g();
+}, 'Accessed static private method from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-method-subclass-receiver.js b/js/src/tests/test262/language/expressions/class/elements/static-private-method-subclass-receiver.js
new file mode 100644
index 0000000000..073626f60e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-method-subclass-receiver.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-method-subclass-receiver.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: Static private methods on the super-class cannot be called with sub-class as the receiver (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+          ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static f() { return this.#g(); }
+  static #g() { return 42; }
+
+}
+
+class D extends C {}
+assert.sameValue(C.f(), 42);
+assert.throws(TypeError, function() {
+    D.f();
+}, 'D does not contain static private method #g');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-methods-proxy-default-handler-throws.js b/js/src/tests/test262/language/expressions/class/elements/static-private-methods-proxy-default-handler-throws.js
new file mode 100644
index 0000000000..d2281eb41c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-methods-proxy-default-handler-throws.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// Copyright (C) 2018 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-privatefieldget
+description: Static private methods not accessible via default Proxy handler
+info: |
+  1. Assert: P is a Private Name value.
+  2. If O is not an object, throw a TypeError exception.
+  3. Let entry be PrivateFieldFind(P, O).
+  4. If entry is empty, throw a TypeError exception.
+
+features: [class, class-static-methods-private]
+---*/
+
+
+var C = class {
+  static #x(value) {
+    return 1;
+  }
+  static x() {
+    return this.#x();
+  }
+}
+
+var P = new Proxy(C, {});
+
+assert.sameValue(C.x(), 1);
+assert.throws(TypeError, function() {
+  P.x();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-arrow-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-arrow-function.js
new file mode 100644
index 0000000000..599be3a0ec
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-arrow-function.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-setter-access-on-inner-arrow-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private setter access inside of an arrow function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static set #f(v) {
+    this._v = v;
+  }
+
+  static access() {
+    const arrowFunction = () => {
+      this.#f = 'Test262';
+    };
+
+    arrowFunction();
+  }
+}
+
+C.access();
+assert.sameValue(C._v, 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private setter from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-class.js b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-class.js
new file mode 100644
index 0000000000..2390b201f8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-class.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-setter-access-on-inner-class.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private setter access inside of an inner class (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-public, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static set #f(v) {
+    return this._v = v;
+  }
+
+  static Inner = class {
+    static access(o) {
+      o.#f = 'Test262';
+    }
+  }
+
+}
+
+C.Inner.access(C)
+assert.sameValue(C._v, 'Test262');
+assert.throws(TypeError, function() {
+  C.Inner.access(C.Inner);
+}, 'Accessed static private setter from an object which did not contain it');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-function.js b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-function.js
new file mode 100644
index 0000000000..763aa9ff6a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-setter-access-on-inner-function.js
@@ -0,0 +1,50 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-setter-access-on-inner-function.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private setter access inside of a nested function (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+        a. Return P.[[Value]].
+      ...
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static set #f(v) {
+    this._v = v;
+  }
+
+  static access() {
+    const self = this;
+
+    function innerFunction() {
+      self.#f = 'Test262';
+    }
+
+    innerFunction();
+  }
+}
+
+C.access();
+assert.sameValue(C._v, 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private setter from an arbitrary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/static-private-setter.js
new file mode 100644
index 0000000000..17a48d9c33
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-private-setter.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-setter.case
+// - src/class-elements/default/cls-expr.template
+/*---
+description: static private setter declaration and usage (field definitions in a class expression)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    MethodDefinition :
+      get ClassElementName () { FunctionBody }
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassTail : ClassHeritage { ClassBody }
+      ...
+      33. If PrivateBoundIdentifiers of ClassBody contains a Private Name P such that P's [[Kind]] field is either "method" or "accessor" and P's [[Brand]] is F,
+        a. PrivateBrandAdd(F, F).
+      34. For each item fieldRecord in order from staticFields,
+        a. Perform ? DefineField(F, field).
+
+    PrivateFieldGet (P, O)
+      1. Assert: P is a Private Name.
+      2. If O is not an object, throw a TypeError exception.
+      3. If P.[[Kind]] is "field",
+      ...
+      4. Perform ? PrivateBrandCheck(O, P).
+      5. If P.[[Kind]] is "method",
+      ...
+      6. Else,
+        a. Assert: P.[[Kind]] is "accessor".
+        b. If P does not have a [[Get]] field, throw a TypeError exception.
+        c. Let getter be P.[[Get]].
+        d. Return ? Call(getter, O).
+
+    PrivateBrandCheck(O, P)
+      1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
+        a. Throw a TypeError exception.
+
+---*/
+
+
+var C = class {
+  static set #f(v) {
+    this._v = v;
+  }
+
+  static access() {
+    this.#f = 'Test262';
+  }
+}
+
+C.access();
+assert.sameValue(C._v, 'Test262');
+assert.throws(TypeError, function() {
+  C.access.call({});
+}, 'Accessed static private setter from an arbitrary object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..c2e0110350
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-string-literal-name.template
+/*---
+description: Syntax error if `arguments` used in class field (static string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'x' = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..daa30b0d65
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/static-string-literal-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-static-string-literal-name.template
+/*---
+description: Syntax error if `super()` used in class field (static string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public, class-static-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static 'x' = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-arguments.js
new file mode 100644
index 0000000000..2256c69eda
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-string-literal-name.template
+/*---
+description: Syntax error if `arguments` used in class field (string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  'x' = arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-super.js
new file mode 100644
index 0000000000..c4e66fee60
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/string-literal-name-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-string-literal-name.template
+/*---
+description: Syntax error if `super()` used in class field (string literal ClassElementName)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  'x' = super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/browser.js b/js/src/tests/test262/language/expressions/class/elements/syntax/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/browser.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-arrow-heritage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-arrow-heritage.js
new file mode 100644
index 0000000000..82db7c4134
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-arrow-heritage.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/class-heritage-array-literal-arrow-heritage.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if an array literal evaluated on ClassHeritage uses a private name. (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassTail : ClassHeritage { ClassBody }
+
+    ClassHeritage :
+        extends LeftHandSideExpression
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends () => {} {
+  
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-async-arrow-heritage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-async-arrow-heritage.js
new file mode 100644
index 0000000000..bc9e9e4f0c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/class-heritage-array-literal-async-arrow-heritage.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/class-heritage-array-literal-async-arrow-heritage.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if an array literal evaluated on ClassHeritage uses a private name. (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassTail : ClassHeritage { ClassBody }
+
+    ClassHeritage :
+        extends LeftHandSideExpression
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends async () => {} {
+  
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/browser.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..0ac35f7262
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..281801179d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..5118bf51a9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..a0ad8d842b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..86a12e866e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..6b3b46aa6c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-method.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..0f7b98dc52
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#m);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..4a73e796e6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-call-expression-privatename.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete (g().#x);
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..818f7daa58
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..59674f3c4a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..eeeeb3f4d5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..4942f33237
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..37bb4ee79d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..05b0924dc5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-method.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m
+);
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..6e10b845bd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#m);
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..6e56f3672a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-covered-err-delete-member-expression-privatename.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in field, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete (this.#x);
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..f0d42d3ca7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..3c54c04e9c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..8f8fb0767e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..c29901811b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..ab30366fd4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..cf3636c909
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-method.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..032f38867e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#m;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..cd9e0d6c61
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-call-expression-privatename.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete g().#x;
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..ed52556679
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..8fac99788b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..abfb81061a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..d625a8967f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..0373eb0e6f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..c541aa8481
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-method.js
@@ -0,0 +1,39 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m
+;
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..758581226c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#m;
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..bacf51b086
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-err-delete-member-expression-privatename.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in field)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete this.#x;
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..c7d8b8761f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..d0088d69f6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..6ed28009b4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..4d55d332c6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..f2b9f528e7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..71aa4e22d0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-method.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..83a7876777
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#m));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..c5267dee0e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-call-expression-privatename.js
@@ -0,0 +1,46 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  g = this.f;
+  x = delete ((g().#x));
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..50deafdb75
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..f35d2963fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..104efa3414
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..43e63eb187
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..cfcf3c3274
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..30b1ea6425
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-method.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m
+));
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..a6dc490e4f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#m));
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..eb0cf63c34
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/field-delete-twice-covered-err-delete-member-expression-privatename.js
@@ -0,0 +1,44 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-field-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in field, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  
+  x = delete ((this.#x));
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..4c4266bc0f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..dc2ed8ae86
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..cadfb70cfa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..6a86897e32
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..103c4d8f03
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..77ae189c56
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-method.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..414489a3db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#m);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..6819afe22b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-call-expression-privatename.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete (g().#x);
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..9254c637ae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..93c252a50d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..19baf4f50b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..47bbea4722
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..aa9320685d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..4bcde6bfac
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-method.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m
+);
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..8e0ccea10a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#m);
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..b589909c8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-covered-err-delete-member-expression-privatename.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in method, covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete (this.#x);
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..58cb824387
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..15d9c899d4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..874a936b9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..00ad29fb1d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..e796b9f005
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..ff4f4c8bea
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-method.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..afeb3b7104
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#m;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..e42ffc3c4c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-call-expression-privatename.js
@@ -0,0 +1,43 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete g().#x;
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..97a9c802ee
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..cc7b2547c8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..1dbebe7d50
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..903a88a2d6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..63ccc9aedc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..cae060da65
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-method.js
@@ -0,0 +1,42 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m
+;
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..036ee3cb5a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,41 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#m;
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..d35687165a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-err-delete-member-expression-privatename.js
@@ -0,0 +1,41 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in method)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete this.#x;
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..b995a8bce0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-get.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor get method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class-fields-public, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..0c10458069
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-accessor-set.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName accessor set method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private, class-methods-private, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..0fee3ad0be
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async-gen.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async generator (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async.js
new file mode 100644
index 0000000000..d8fbec22b1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-async.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName async method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-gen.js
new file mode 100644
index 0000000000..d9aa54b974
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method-gen.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName generator (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method.js
new file mode 100644
index 0000000000..c9819cf743
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-method.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private ordinary method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-no-reference.js
new file mode 100644
index 0000000000..fe9f9d9133
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-private-no-reference.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName no referencing class element (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#m));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-privatename.js
new file mode 100644
index 0000000000..4061f086e6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-call-expression-privatename.js
@@ -0,0 +1,49 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-call-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to CallExpression.PrivateName private field (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    var g = this.f;
+    delete ((g().#x));
+  }
+
+  f() {
+  return this;
+  }
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
new file mode 100644
index 0000000000..ae90e0aefc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-get.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-get.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor get method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
new file mode 100644
index 0000000000..39f5072f60
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-accessor-set.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-accessor-set.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName accessor set method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
new file mode 100644
index 0000000000..09d550ad3f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async-gen.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async generator (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-iteration, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  async *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async.js
new file mode 100644
index 0000000000..e65f75595e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-async.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-async.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName async method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, async-functions, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  async #m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-gen.js
new file mode 100644
index 0000000000..4ecfb3a363
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method-gen.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method-gen.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName generator (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, generators, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  *#m() {}
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method.js
new file mode 100644
index 0000000000..1c375730d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-method.js
@@ -0,0 +1,48 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-method.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private ordinary method (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class-methods-private, class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m
+));
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-no-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-no-reference.js
new file mode 100644
index 0000000000..917c6f4af4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-private-no-reference.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-private-no-reference.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName no referencing class element (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#m));
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-privatename.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-privatename.js
new file mode 100644
index 0000000000..ea03c72105
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/method-delete-twice-covered-err-delete-member-expression-privatename.js
@@ -0,0 +1,47 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/err-delete-member-expression-privatename.case
+// - src/class-elements/delete-error/cls-expr-method-delete-twice-covered.template
+/*---
+description: It's a SyntaxError if delete operator is applied to MemberExpression.PrivateName private field (in method, recursively covered)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    This file must never use the onlyStrict flag as the strict mode should always
+    be observed inside class bodies.
+
+    Static Semantics: Early Errors
+
+      UnaryExpression : delete UnaryExpression
+
+      It is a Syntax Error if the UnaryExpression is contained in strict mode
+      code and the derived UnaryExpression is
+      PrimaryExpression : IdentifierReference ,
+      MemberExpression : MemberExpression.PrivateName , or
+      CallExpression : CallExpression.PrivateName .
+
+      It is a Syntax Error if the derived UnaryExpression is
+      PrimaryExpression : CoverParenthesizedExpressionAndArrowParameterList and
+      CoverParenthesizedExpressionAndArrowParameterList ultimately derives a
+      phrase that, if used in place of UnaryExpression, would produce a
+      Syntax Error according to these rules. This rule is recursively applied.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  x() {
+    
+    delete ((this.#x));
+  }
+
+  
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/shell.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/delete/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-class-body-ctor-duplicate.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-class-body-ctor-duplicate.js
new file mode 100644
index 0000000000..03da89dd58
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-class-body-ctor-duplicate.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-class-body-ctor-duplicate.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It is a SyntaxError if the class body has more than one constructor (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrototypePropertyNameList of ClassElementList contains more
+        than one occurrence of "constructor".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  constructor() {}
+  constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-ctor-super-no-heritage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-ctor-super-no-heritage.js
new file mode 100644
index 0000000000..b5bed2447f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-ctor-super-no-heritage.js
@@ -0,0 +1,30 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-ctor-super-no-heritage.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It is a SyntaxError if class has no heritage and constructor has a direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassTail : ClassHeritageopt { ClassBody }
+
+    It is a Syntax Error if ClassHeritage is not present and the following algorithm evaluates to true:
+      1. Let constructor be ConstructorMethod of ClassBody.
+      2. If constructor is empty, return false.
+      3. Return HasDirectSuper of constructor.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  constructor() {
+    super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-ues-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-ues-error.js
new file mode 100644
index 0000000000..8eb2bdf13e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-ues-error.js
@@ -0,0 +1,71 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-identifier-invalid-ues-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Invalid FieldDefinition, ClassElementName, PropertyName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  \u0000;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwj-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwj-error.js
new file mode 100644
index 0000000000..5593b75c4b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwj-error.js
@@ -0,0 +1,71 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-identifier-invalid-zwj-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Invalid FieldDefinition, ClassElementName, PropertyName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  \u200D_ZWJ;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwnj-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwnj-error.js
new file mode 100644
index 0000000000..f116c19c29
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-field-identifier-invalid-zwnj-error.js
@@ -0,0 +1,71 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-identifier-invalid-zwnj-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Invalid FieldDefinition, ClassElementName, PropertyName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  \u200C_ZWNJ;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-fields-same-line-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-fields-same-line-error.js
new file mode 100644
index 0000000000..195c83740f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-fields-same-line-error.js
@@ -0,0 +1,34 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-fields-same-line-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: SyntaxError (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x y
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-array-literal.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-array-literal.js
new file mode 100644
index 0000000000..871eeb1d59
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-array-literal.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage-array-literal.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if an array literal evaluated on ClassHeritage uses a private name. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends (o) => [o.#foo]
+{
+  #foo;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-chained-usage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-chained-usage.js
new file mode 100644
index 0000000000..0d46fbde66
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-chained-usage.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage-chained-usage.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class expression evaluated on ClassHeritage uses an private name declared on subclass. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends class extends class extends class { x = this.#foo; } { #foo; x = this.#bar; } { #bar; x = this.#fuz; }
+{
+  #fuz;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-function-expression.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-function-expression.js
new file mode 100644
index 0000000000..22bd1e4041
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-function-expression.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage-function-expression.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a function expression evaluated on ClassHeritage uses a private name. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends function() { x = this.#foo; }
+{
+  #foo;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-obj-literal.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-obj-literal.js
new file mode 100644
index 0000000000..7ef6cd7539
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-obj-literal.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage-obj-literal.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a object literal evaluated on ClassHeritage uses a private name. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends (o) => {x: o.#foo}
+{
+  #foo;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-recursive.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-recursive.js
new file mode 100644
index 0000000000..624a0bc734
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage-recursive.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage-recursive.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class expression evaluated on ClassHeritage of a ClassHeritage uses an undeclared private name. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends class extends class { x = this.#foo; } {}
+{
+  #foo;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage.js
new file mode 100644
index 0000000000..64d268e518
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-environment-on-class-heritage.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-environment-on-class-heritage.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class expression evaluated on ClassHeritage uses an undeclared private name. (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage { ClassBody }
+        ...
+        5. Let outerPrivateEnvironment be the PrivateEnvironment of the running execution context.
+        6. Let classPrivateEnvironment be NewDeclarativeEnvironment(outerPrivateEnvironment).
+        7. Let classPrivateEnvRec be classPrivateEnvironment's EnvironmentRecord.
+        8. If ClassBodyopt is present, then
+            a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
+              i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
+        9. If ClassHeritageopt is not present, then
+            a. Let protoParent be the intrinsic object %ObjectPrototype%.
+            b. Let constructorParent be the intrinsic object %FunctionPrototype%.
+        10. Else,
+            a. Set the running execution context's LexicalEnvironment to classScope.
+            b. NOTE: The running execution context's PrivateEnvironment is outerPrivateEnvironment when evaluating ClassHeritage.
+        ...
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends class { x = this.#foo; }
+{
+  #foo;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-on-object-destructuring.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-on-object-destructuring.js
new file mode 100644
index 0000000000..4e40e227c5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-on-object-destructuring.js
@@ -0,0 +1,33 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-field-on-object-destructuring.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Acessing private field from object destructuring pattern is not a valid syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, destructuring-binding, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ObjectAssignmentPattern[Yield, Await]:
+       {}
+       {AssignmentRestProperty[?Yield, ?Await]}
+       {AssignmentPropertyList[?Yield, ?Await]}
+       {AssignmentPropertyList[?Yield, ?Await],AssignmentRestProperty[?Yield, ?Await]opt}
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x = 1;
+
+  destructureX() {
+    const { #x: x } = this;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-super-access.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-super-access.js
new file mode 100644
index 0000000000..e5bc32a1a4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-private-field-super-access.js
@@ -0,0 +1,36 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-private-field-super-access.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Acessing private field from super is not a valid syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    MemberExpression[Yield]:
+      MemberExpression[?Yield].PrivateName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m = function() { return 'test262'; };
+
+  Child = class extends C {
+    access() {
+      return super.#m;
+    }
+
+    method() {
+      return super.#m();
+    }
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async-gen.js
new file mode 100644
index 0000000000..55ef05ea36
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async-gen.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-async-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private async generator and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+      It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  async * #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async.js
new file mode 100644
index 0000000000..8ee8fbae4f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-async.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-async.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private async function and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+      It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  async #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-gen.js
new file mode 100644
index 0000000000..32d51ec7b6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-gen.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private generator and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+      It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  * #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-field.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-field.js
new file mode 100644
index 0000000000..8c84381e66
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-field.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-get-field.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private getter and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  get #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-get.js
new file mode 100644
index 0000000000..e2fdf2276c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-get-get.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-get-get.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains multiple private getters with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  get #m() {}
+  get #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-field.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-field.js
new file mode 100644
index 0000000000..fdd0594149
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-field.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-field.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private method and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-get.js
new file mode 100644
index 0000000000..eff2760416
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-get.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-get.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private method and a private getter with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  get #m() {}
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-meth.js
new file mode 100644
index 0000000000..defa641ca8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-meth.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains multiple private methods with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m() {}
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-set.js
new file mode 100644
index 0000000000..c96b2cb0c9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-set.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-set.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private method and a private setter with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  set #m(_) {}
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticfield.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticfield.js
new file mode 100644
index 0000000000..65cfe52128
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticfield.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-staticfield.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private method and a private static field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-static-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #m;
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticmeth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticmeth.js
new file mode 100644
index 0000000000..27df46b325
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-meth-staticmeth.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-staticmeth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private method and a private static method with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #m() {}
+  #m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-field.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-field.js
new file mode 100644
index 0000000000..6b8b13dce9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-field.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-set-field.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains a private setter and a private field with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #m;
+  set #m(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-set.js
new file mode 100644
index 0000000000..cf087ebf3a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatemeth-duplicate-set-set.js
@@ -0,0 +1,27 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-set-set.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It's a SyntaxError if a class contains multiple private setters with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  set #m(_) {}
+  set #m(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-constructor.js
new file mode 100644
index 0000000000..494359452b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Private Fields cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #constructor
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-error.js
new file mode 100644
index 0000000000..714e718332
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-error.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigial and IdentifierName (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  # x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-ues.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-ues.js
new file mode 100644
index 0000000000..a075563d89
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-ues.js
@@ -0,0 +1,65 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-invalid-ues.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Valid PrivateName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #\u0000;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwj-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwj-error.js
new file mode 100644
index 0000000000..8651c749b6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwj-error.js
@@ -0,0 +1,66 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-invalid-zwj-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Valid PrivateName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #\u200D_ZWJ;
+
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwnj-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwnj-error.js
new file mode 100644
index 0000000000..45136325fa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-identifier-invalid-zwnj-error.js
@@ -0,0 +1,66 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-invalid-zwnj-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Valid PrivateName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #\u200C_ZWNJ;
+
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-in-computed-property-missing.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-in-computed-property-missing.js
new file mode 100644
index 0000000000..2b9d8cf988
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-in-computed-property-missing.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-in-computed-property-missing.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Use of undeclared PrivateName in ComputedProperty is a syntax error (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class-fields-public, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElementName:
+      PropertyName
+      PrivateIdentifier
+
+    PropertyName:
+      LiteralPropertyName
+      ComputedPropertyName
+
+    ComputedPropertyName:
+      [ AssignmentExpression ]
+
+    AssignmentExpression ... MemberExpression
+
+    MemberExpression:
+      MemberExpression . PrivateName
+
+    Static Semantics: AllPrivateIdentifiersValid
+      AllPrivateIdentifiersValid is an abstract operation which takes names as an argument.
+
+      MemberExpression : MemberExpression . PrivateIdentifier
+        1. If StringValue of PrivateIdentifier is in names, return true.
+        2. Return false.
+
+      ClassBody : ClassElementList
+        1. Let newNames be the concatenation of names with PrivateBoundIdentifiers of ClassBody.
+        2. Return AllPrivateIdentifiersValid of ClassElementList with the argument newNames.
+
+    Static Semantics: Early Errors
+
+    ScriptBody : StatementList
+      It is a Syntax Error if AllPrivateIdentifiersValid of StatementList with an empty List as an argument is false unless the source code is eval code that is being processed by a direct eval.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  [this.#f] = 'Test262'
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-get-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-get-meth.js
new file mode 100644
index 0000000000..b0d7fdb74e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-get-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-accessor-get-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName () (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  get # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-set-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-set-meth.js
new file mode 100644
index 0000000000..c0b71777f7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-accessor-set-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-accessor-set-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Accessor set Method) (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  set # m(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-gen-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-gen-meth.js
new file mode 100644
index 0000000000..3aad7081cb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-gen-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-async-gen-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Async Generator Method) (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async * # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-meth.js
new file mode 100644
index 0000000000..88c35fce64
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-async-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-async-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Async Method) (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-call-expr.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-call-expr.js
new file mode 100644
index 0000000000..cd27b04b9d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-call-expr.js
@@ -0,0 +1,40 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-call-expr.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (CallExpression) (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    MemberExpression :
+      MemberExpression . PrivateName
+
+    CallExpression :
+      CallExpression . PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+
+  f() {
+    return this;
+  }
+
+  m() {
+    this.f().# x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field-init.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field-init.js
new file mode 100644
index 0000000000..761cc6047d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field-init.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-field-init.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Field with Initializer) (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  # x = 1;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field.js
new file mode 100644
index 0000000000..e17f091cb4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-field.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-field.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Field) (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  # x;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-gen-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-gen-meth.js
new file mode 100644
index 0000000000..bd0fe23ced
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-gen-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-gen-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Generator Method) (class expression)
+esid: prod-ClassElement
+features: [generators, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  * # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-member-expr.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-member-expr.js
new file mode 100644
index 0000000000..c8fbf4304c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-member-expr.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-member-expr.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (MemberExpression) (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    MemberExpression :
+      MemberExpression . PrivateName
+
+    CallExpression :
+      CallExpression . PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x;
+  m() {
+    this.# x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-meth.case.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-meth.case.js
new file mode 100644
index 0000000000..b34eff7ba8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-meth.case.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-meth.case.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Method) (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-get-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-get-meth.js
new file mode 100644
index 0000000000..7a3072dd9b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-get-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-accessor-get-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Accessor get Method) (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static get # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-set-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-set-meth.js
new file mode 100644
index 0000000000..a9d1e182a2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-accessor-set-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-accessor-set-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Accessor set Method) (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static set # m(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-gen-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-gen-meth.js
new file mode 100644
index 0000000000..350f552263
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-gen-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-async-gen-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Async Generator Method) (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async * # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-meth.js
new file mode 100644
index 0000000000..7ea3f03939
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-async-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-async-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Async Method) (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field-init.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field-init.js
new file mode 100644
index 0000000000..9f7beb88fc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field-init.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-field-init.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Field with Initializer) (class expression)
+esid: prod-ClassElement
+features: [class-static-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static # x = 1;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field.js
new file mode 100644
index 0000000000..3b39da8371
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-field.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-field.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Field) (class expression)
+esid: prod-ClassElement
+features: [class-static-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static # x;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-gen-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-gen-meth.js
new file mode 100644
index 0000000000..2d0f842904
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-gen-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-gen-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Generator Method) (class expression)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static * # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-meth.js
new file mode 100644
index 0000000000..321813ec21
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatename-whitespace-error-static-meth.js
@@ -0,0 +1,30 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-whitespace-error-static-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: No space allowed between sigil and IdentifierName (Static Method) (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Updated Productions
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static # m() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatenames-same-line-error.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatenames-same-line-error.js
new file mode 100644
index 0000000000..af8a8946a2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-privatenames-same-line-error.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatenames-same-line-error.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: SyntaxError (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  #x #y
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async-gen.js
new file mode 100644
index 0000000000..4a14cfc68a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async-gen.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-async-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Async Generator Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  async * method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async.js
new file mode 100644
index 0000000000..4e730e6cce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-async.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-async.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Async Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  async method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-gen.js
new file mode 100644
index 0000000000..ed359acf1c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-gen.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Generator Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  * method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-get.js
new file mode 100644
index 0000000000..abe21071b3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-get.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-get.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Accessor get Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  get method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-method.js
new file mode 100644
index 0000000000..65ff8cedb9
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-method.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-method.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async-gen.js
new file mode 100644
index 0000000000..0dfb280e6e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async-gen.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-private-async-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Private Async Generators Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  async * #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async.js
new file mode 100644
index 0000000000..f855db8186
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-async.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-private-async.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Private Async Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  async #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-gen.js
new file mode 100644
index 0000000000..b44c81b469
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-gen.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-private-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Private Generators Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [generators, class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  * #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-method.js
new file mode 100644
index 0000000000..8e3f00949c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-private-method.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-private-method.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Private Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-set.js
new file mode 100644
index 0000000000..ea1f444e26
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-contains-super-set.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-contains-super-set.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Accessor set Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  set method(_) {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-gen.js
new file mode 100644
index 0000000000..fafd93217e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-gen.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-ctor-async-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Async Generator Methods cannot be named "constructor" (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async * constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-meth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-meth.js
new file mode 100644
index 0000000000..2ddc1484a5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-async-meth.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-ctor-async-meth.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Async Methods cannot be named "constructor" (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-gen.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-gen.js
new file mode 100644
index 0000000000..d2a097d885
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-gen.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-ctor-gen.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Generator Methods cannot be named "constructor" (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  * constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-get.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-get.js
new file mode 100644
index 0000000000..1f7a82091c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-get.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-ctor-get.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Accessor get Methods cannot be named "constructor" (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  get constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-set.js
new file mode 100644
index 0000000000..f4d0eb692f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-special-meth-ctor-set.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-meth-ctor-set.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Accessor set Methods cannot be named "constructor" (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  set constructor(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..71ed3b4c64
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async * prototype() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-super.js
new file mode 100644
index 0000000000..c9210159fe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-gen-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-gen-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static async * method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-prototype.js
new file mode 100644
index 0000000000..2bddcc2c09
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async prototype() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-super.js
new file mode 100644
index 0000000000..aa40e45b51
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-async-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static async method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-prototype.js
new file mode 100644
index 0000000000..9a596bc853
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Generator Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static * prototype() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-super.js
new file mode 100644
index 0000000000..def3cb1572
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-gen-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-gen-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Generator Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static * method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-prototype.js
new file mode 100644
index 0000000000..554b88539b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-get-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor get Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static get prototype() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-super.js
new file mode 100644
index 0000000000..5a8909c4e3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-get-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-get-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor get Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static get method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-prototype.js
new file mode 100644
index 0000000000..6db6567c1a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static prototype() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-super.js
new file mode 100644
index 0000000000..caf2ae5f50
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-constructor.js
new file mode 100644
index 0000000000..8e4d260b3f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-gen-meth-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Private Methods cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async * #constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-super.js
new file mode 100644
index 0000000000..0973e2cd57
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-gen-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-gen-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Private Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static async * #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-constructor.js
new file mode 100644
index 0000000000..e30d021db4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-meth-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Private Methods cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static async #constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-super.js
new file mode 100644
index 0000000000..54b5f597ad
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-async-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Private Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static async #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-constructor.js
new file mode 100644
index 0000000000..2993eb2f6b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-gen-meth-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Generator Private Methods cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static * #constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-super.js
new file mode 100644
index 0000000000..dd91264f09
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-gen-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-gen-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Generator Private Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static * #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-constructor.js
new file mode 100644
index 0000000000..50c1b7ab1c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-meth-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Private Methods cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #constructor() {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-super.js
new file mode 100644
index 0000000000..f5c1ba370c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-private-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Private Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static #method() {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-privatename-constructor.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-privatename-constructor.js
new file mode 100644
index 0000000000..16bb2d0a74
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-privatename-constructor.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-privatename-constructor.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Private Fields cannot be named constructor (class expression)
+esid: prod-ClassElement
+features: [class-static-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElementName : PrivateName ;
+        It is a Syntax Error if StringValue of PrivateName is "#constructor"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static #constructor
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-prototype.js
new file mode 100644
index 0000000000..b70a612536
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-prototype.js
@@ -0,0 +1,26 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-set-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor set Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  static set prototype(_) {}
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-super.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-super.js
new file mode 100644
index 0000000000..a007d94d20
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/grammar-static-set-meth-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-set-meth-super.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor set Methods cannot contain direct super (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends Function{
+  static set method(_) {
+      super();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/browser.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-bad-reference.js
new file mode 100644
index 0000000000..b7dbddf0bd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = (() => {})().#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-this.js
new file mode 100644
index 0000000000..e9571d612f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-call-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = (() => this)().#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-bad-reference.js
new file mode 100644
index 0000000000..b35a2c200a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-fn.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, function in class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = function() { (() => {})().#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-this.js
new file mode 100644
index 0000000000..7f38fb2cdb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-call-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-fn.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, function in class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = function() { (() => this)().#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-bad-reference.js
new file mode 100644
index 0000000000..eae46002b7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-fn.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, function in class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = function() { something.#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-this.js
new file mode 100644
index 0000000000..444ad05a91
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-fn-member-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-fn.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, function in class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = function() { this.#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-bad-reference.js
new file mode 100644
index 0000000000..080ad6e49b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-bad-reference.js
@@ -0,0 +1,57 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-heritage.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, field initializer in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  f = (() => {})().#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-this.js
new file mode 100644
index 0000000000..16675904d7
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-call-expression-this.js
@@ -0,0 +1,57 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-heritage.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, field initializer in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  f = (() => this)().#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-bad-reference.js
new file mode 100644
index 0000000000..a4aa0c5273
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-bad-reference.js
@@ -0,0 +1,57 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-heritage.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, field initializer in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  f = something.#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-this.js
new file mode 100644
index 0000000000..f095e8f1ae
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-heritage-member-expression-this.js
@@ -0,0 +1,57 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer-heritage.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, field initializer in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  f = this.#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-bad-reference.js
new file mode 100644
index 0000000000..e7d59a1792
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-field-initializer.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = something.#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-this.js
new file mode 100644
index 0000000000..546d3dfaa3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/field-init-member-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-field-initializer.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, class field initializer in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  f = this.#x
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-bad-reference.js
new file mode 100644
index 0000000000..a1ee743917
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() { (() => {})().#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-this.js
new file mode 100644
index 0000000000..4301aa6a15
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-call-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() { (() => this)().#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-bad-reference.js
new file mode 100644
index 0000000000..a8625f28ef
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-bad-reference.js
@@ -0,0 +1,55 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method-fn.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, inner function in method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    function fn() { (() => {})().#x }
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-this.js
new file mode 100644
index 0000000000..46c3a9fa2f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-call-expression-this.js
@@ -0,0 +1,55 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method-fn.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, inner function in method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    function fn() { (() => this)().#x }
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-bad-reference.js
new file mode 100644
index 0000000000..758c94f991
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-bad-reference.js
@@ -0,0 +1,55 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method-fn.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, inner function in method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    function fn() { something.#x }
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-this.js
new file mode 100644
index 0000000000..ad8e057e0f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-fn-member-expression-this.js
@@ -0,0 +1,55 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method-fn.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, inner function in method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    function fn() { this.#x }
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-bad-reference.js
new file mode 100644
index 0000000000..3a3aa7727c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-bad-reference.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method-heritage.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, method in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  m() {
+    (() => {})().#x
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-this.js
new file mode 100644
index 0000000000..0158a0b45b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-call-expression-this.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method-heritage.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, method in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  m() {
+    (() => this)().#x
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-bad-reference.js
new file mode 100644
index 0000000000..bfe6887bfb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-bad-reference.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method-heritage.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, method in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  m() {
+    something.#x
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-this.js
new file mode 100644
index 0000000000..fc88c924a8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-heritage-member-expression-this.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method-heritage.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, method in inner class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+class Parent {
+  #x = 42;
+}
+
+var C = class extends Parent {
+  m() {
+    this.#x
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-bad-reference.js
new file mode 100644
index 0000000000..d173e0e672
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-bad-reference.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-method.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() { something.#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-this.js
new file mode 100644
index 0000000000..e722e49930
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-member-expression-this.js
@@ -0,0 +1,53 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-method.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, method in class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() { this.#x }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-bad-reference.js
new file mode 100644
index 0000000000..a0906e1edf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-bad-reference.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-outter-method.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, method in outter class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    class Outter {
+      #x = 42;
+    }
+
+    this.#x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-this.js
new file mode 100644
index 0000000000..3584d98bc6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-call-expression-this.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/cls-expr-outter-method.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, method in outter class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    class Outter {
+      #x = 42;
+    }
+
+    this.#x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-bad-reference.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-bad-reference.js
new file mode 100644
index 0000000000..a61fdeb85f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-bad-reference.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/cls-expr-outter-method.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, method in outter class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    class Outter {
+      #x = 42;
+    }
+
+    this.#x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-this.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-this.js
new file mode 100644
index 0000000000..098068fc37
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/method-outter-member-expression-this.js
@@ -0,0 +1,59 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/cls-expr-outter-method.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, method in outter class expression)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+    Static Semantics: AllPrivateNamesValid
+
+    ClassBody : ClassElementList
+    1. Let newNames be the concatenation of names with PrivateBoundNames of ClassBody.
+    2. Return AllPrivateNamesValid of ClassElementList with the argument newNames.
+
+    For all other grammatical productions, recurse on subexpressions/substatements,
+    passing in the names of the caller. If all pieces return true, then return true.
+    If any returns false, return false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  m() {
+    class Outter {
+      #x = 42;
+    }
+
+    this.#x;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/shell.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/invalid-names/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-generator-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-generator-cannot-escape-token.js
new file mode 100644
index 0000000000..e96f119bba
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-generator-cannot-escape-token.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-async-generator-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private async generator cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName::
+      # IdentifierName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async * \u0023m() { return 42; }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-method-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-method-cannot-escape-token.js
new file mode 100644
index 0000000000..cfef5d3ecf
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-async-method-cannot-escape-token.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-async-method-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private async method cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName::
+      # IdentifierName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  async \u0023m() { return 42; }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-call-exp-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-call-exp-cannot-escape-token.js
new file mode 100644
index 0000000000..dfd34de302
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-call-exp-cannot-escape-token.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-call-exp-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private reference cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName ::
+      # IdentifierName
+
+    MemberExpression :
+      MemberExpression . PrivateName
+
+    CallExpression :
+      CallExpression . PrivateName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  method() {
+    foo().\u0023field;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-field-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-field-cannot-escape-token.js
new file mode 100644
index 0000000000..09f6ffeafe
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-field-cannot-escape-token.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private field cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName::
+      # IdentifierName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  \u0023field;
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-generator-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-generator-cannot-escape-token.js
new file mode 100644
index 0000000000..a273f86e33
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-generator-cannot-escape-token.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-generator-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private generator cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName::
+      # IdentifierName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  * \u0023m() { return 42; }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-member-exp-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-member-exp-cannot-escape-token.js
new file mode 100644
index 0000000000..81fb34860d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-member-exp-cannot-escape-token.js
@@ -0,0 +1,34 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-member-exp-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private reference cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName ::
+      # IdentifierName
+
+    MemberExpression :
+      MemberExpression . PrivateName
+
+    CallExpression :
+      CallExpression . PrivateName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  method() {
+    this.\u0023field;
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-method-cannot-escape-token.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-method-cannot-escape-token.js
new file mode 100644
index 0000000000..08d1daab32
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/private-method-cannot-escape-token.js
@@ -0,0 +1,26 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-cannot-escape-token.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: The pound signal in the private method cannot be escaped (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    PrivateName::
+      # IdentifierName
+
+    U+0023 is the escape sequence for #
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  \u0023m() { return 42; }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/shell.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/super-private-access-invalid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/super-private-access-invalid.js
new file mode 100644
index 0000000000..2a745e288d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/early-errors/super-private-access-invalid.js
@@ -0,0 +1,37 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) error:SyntaxError -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/super-private-access-invalid.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: It is syntax error if PrivateName IdentifierName is accessed on SuperProperty (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    SuperProperty:
+      super[Expression]
+      super.IdentifierName
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class extends B
+{
+  #x() {}
+
+  method() {
+    super.#x();
+  }
+};
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/shell.js b/js/src/tests/test262/language/expressions/class/elements/syntax/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/browser.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-class-body-ctor-no-heritage.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-class-body-ctor-no-heritage.js
new file mode 100644
index 0000000000..92137ad521
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-class-body-ctor-no-heritage.js
@@ -0,0 +1,24 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-class-body-ctor-no-heritage.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: A constructor is valid without a super call in the constructor and heritage (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+info: |
+    ClassTail : ClassHeritageopt { ClassBody }
+
+    It is a Syntax Error if ClassHeritage is not present and the following algorithm evaluates to true:
+      1. Let constructor be ConstructorMethod of ClassBody.
+      2. If constructor is empty, return false.
+      3. Return HasDirectSuper of constructor.
+
+---*/
+
+
+var C = class {
+  constructor() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer-alt.js
new file mode 100644
index 0000000000..1a731074d3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer-alt.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-classelementname-initializer-alt.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: FieldDefinition, ClassElementName, PropertyName = Initializer Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1;
+  _ = 2;
+  \u{6F} = 3;
+  ℘ = 4;      // DO NOT CHANGE THE NAME OF THIS FIELD
+  ZW_‌_NJ = 5; // DO NOT CHANGE THE NAME OF THIS FIELD
+  ZW_‍_J = 6;  // DO NOT CHANGE THE NAME OF THIS FIELD
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer.js
new file mode 100644
index 0000000000..f26a8180ce
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-classelementname-initializer.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-classelementname-initializer.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: FieldDefinition, ClassElementName, PropertyName = Initializer Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $ = 1;
+  _ = 2;
+  \u{6F} = 3;
+  \u2118 = 4;
+  ZW_\u200C_NJ = 5;
+  ZW_\u200D_J = 6;
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier-alt.js
new file mode 100644
index 0000000000..fab559ecee
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier-alt.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-identifier-alt.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid FieldDefinition, ClassElementName, PropertyName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $;
+  _;
+  \u{6F};
+  ℘;      // DO NOT CHANGE THE NAME OF THIS FIELD
+  ZW_‌_NJ; // DO NOT CHANGE THE NAME OF THIS FIELD
+  ZW_‍_J;  // DO NOT CHANGE THE NAME OF THIS FIELD
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier.js
new file mode 100644
index 0000000000..5557474be6
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-field-identifier.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-field-identifier.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid FieldDefinition, ClassElementName, PropertyName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+      StringLiteral
+      NumericLiteral
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart ::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart ::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue ::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  $;
+  _;
+  \u{6F};
+  \u2118;
+  ZW_\u200C_NJ;
+  ZW_\u200D_J;
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-fields-multi-line.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-fields-multi-line.js
new file mode 100644
index 0000000000..9843ba163f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-fields-multi-line.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-fields-multi-line.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid multi-line, multi-field (class expression)
+esid: prod-ClassElement
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+---*/
+
+
+var C = class {
+  x
+  y
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-get-set.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-get-set.js
new file mode 100644
index 0000000000..74156eaa59
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-get-set.js
@@ -0,0 +1,24 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-get-set.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: It's valid if a class contains a private getter and a private setter with the same name (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+var C = class {
+  get #m() {}
+  set #m(_) {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-meth-nestedclassmeth.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-meth-nestedclassmeth.js
new file mode 100644
index 0000000000..16924ae966
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatemeth-duplicate-meth-nestedclassmeth.js
@@ -0,0 +1,29 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatemeth-duplicate-meth-nestedclassmeth.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: It's valid if a nested class shadows a private method (class expression)
+esid: prod-ClassElement
+features: [class-methods-private, class]
+flags: [generated]
+info: |
+    Static Semantics: Early Errors
+
+    ClassBody : ClassElementList
+        It is a Syntax Error if PrivateBoundNames of ClassBody contains any duplicate entries, unless the name is used once for a getter and once for a setter and in no other entries.
+
+---*/
+
+
+var C = class {
+  constructor() {
+    class B {
+      #m() {}
+    }
+  }
+
+  #m() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer-alt.js
new file mode 100644
index 0000000000..c4a1159b68
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer-alt.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-classelementname-initializer-alt.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid PrivateName = Initializer Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1;
+  #_ = 2;
+  #\u{6F} = 3;
+  #℘ = 4;      // DO NOT CHANGE THE NAME OF THIS FIELD
+  #ZW_‌_NJ = 5; // DO NOT CHANGE THE NAME OF THIS FIELD
+  #ZW_‍_J = 6;  // DO NOT CHANGE THE NAME OF THIS FIELD
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer.js
new file mode 100644
index 0000000000..6150e1d228
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-classelementname-initializer.js
@@ -0,0 +1,70 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-classelementname-initializer.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid PrivateName = Initializer Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    Initializer :
+      = AssignmentExpression
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$ = 1;
+  #_ = 2;
+  #\u{6F} = 3;
+  #\u2118 = 4;
+  #ZW_\u200C_NJ = 5;
+  #ZW_\u200D_J = 6;
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-identifier.js
new file mode 100644
index 0000000000..99c01e7406
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-identifier.js
@@ -0,0 +1,67 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Valid PrivateName Syntax (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  #$;
+  #_;
+  #\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-no-initializer-with-method.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-no-initializer-with-method.js
new file mode 100644
index 0000000000..d8f122f475
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatename-no-initializer-with-method.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-no-initializer-with-method.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: SyntaxError (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x
+  m() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatenames-multi-line.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatenames-multi-line.js
new file mode 100644
index 0000000000..272ae3592c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-privatenames-multi-line.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatenames-multi-line.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: SyntaxError (class expression)
+esid: prod-ClassElement
+features: [class-fields-private, class]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  #x
+  #y
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-accessor-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-accessor-meth-valid.js
new file mode 100644
index 0000000000..5ef5f9b3d3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-accessor-meth-valid.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-prototype-accessor-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Accessor Methods can be named "prototype" (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage_opt { ClassBody_opt }
+
+    [...]
+    6. Let proto be OrdinaryObjectCreate(protoParent).
+    [...]
+    14. Perform MakeConstructor(F, false, proto).
+    [...]
+    20. For each ClassElement m in order from methods, do
+        a. If IsStatic of m is false, then
+            i. Let status be PropertyDefinitionEvaluation of m with arguments proto and false.
+    [...]
+
+    Runtime Semantics: PropertyDefinitionEvaluation
+
+    With parameters object and enumerable.
+
+    MethodDefinition : get PropertyName ( ) { FunctionBody }
+
+    [...]
+    9. Let desc be the PropertyDescriptor { [[Get]]: closure, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    10. Return ? DefinePropertyOrThrow(object, propKey, desc).
+
+    MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody }
+
+    [...]
+    8. Let desc be the PropertyDescriptor { [[Set]]: closure, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    9. Return ? DefinePropertyOrThrow(object, propKey, desc).
+
+---*/
+
+
+var C = class {
+  get prototype() { return 13; }
+  set prototype(_) {}
+};
+
+assert(C.hasOwnProperty('prototype'));
+assert(C.prototype.hasOwnProperty('prototype'));
+assert.notSameValue(C.prototype.prototype, C.prototype);
+assert.sameValue(C.prototype.prototype, 13);
+verifyProperty(C.prototype, 'prototype', {
+    enumerable: false,
+    configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-gen-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-gen-meth-valid.js
new file mode 100644
index 0000000000..fc5e1bfacd
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-gen-meth-valid.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-prototype-async-gen-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Async Generator Methods can be named "prototype" (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage_opt { ClassBody_opt }
+
+    [...]
+    6. Let proto be OrdinaryObjectCreate(protoParent).
+    [...]
+    14. Perform MakeConstructor(F, false, proto).
+    [...]
+    20. For each ClassElement m in order from methods, do
+        a. If IsStatic of m is false, then
+            i. Let status be PropertyDefinitionEvaluation of m with arguments proto and false.
+    [...]
+
+    Runtime Semantics: PropertyDefinitionEvaluation
+
+    With parameters object and enumerable.
+
+    AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    [...]
+    10. Let desc be PropertyDescriptor { [[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    11. Return ? DefinePropertyOrThrow(object, propKey, desc).
+
+---*/
+
+
+var C = class {
+  async * prototype() {}
+};
+
+assert(C.hasOwnProperty('prototype'));
+assert(C.prototype.hasOwnProperty('prototype'));
+assert.notSameValue(C.prototype.prototype, C.prototype);
+verifyProperty(C.prototype, 'prototype', {
+    writable: true,
+    enumerable: false,
+    configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-meth-valid.js
new file mode 100644
index 0000000000..f6e24e4aff
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-async-meth-valid.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-prototype-async-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Async Methods can be named "prototype" (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage_opt { ClassBody_opt }
+
+    [...]
+    6. Let proto be OrdinaryObjectCreate(protoParent).
+    [...]
+    14. Perform MakeConstructor(F, false, proto).
+    [...]
+    20. For each ClassElement m in order from methods, do
+        a. If IsStatic of m is false, then
+            i. Let status be PropertyDefinitionEvaluation of m with arguments proto and false.
+    [...]
+
+    Runtime Semantics: PropertyDefinitionEvaluation
+
+    With parameters object and enumerable.
+
+    AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    [...]
+    8. Let desc be the PropertyDescriptor { [[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    9. Return ? DefinePropertyOrThrow(object, propKey, desc).
+
+---*/
+
+
+var C = class {
+  async prototype() {}
+};
+
+assert(C.hasOwnProperty('prototype'));
+assert(C.prototype.hasOwnProperty('prototype'));
+assert.notSameValue(C.prototype.prototype, C.prototype);
+verifyProperty(C.prototype, 'prototype', {
+    writable: true,
+    enumerable: false,
+    configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-gen-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-gen-meth-valid.js
new file mode 100644
index 0000000000..83676bd5ca
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-gen-meth-valid.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-prototype-gen-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Generator Methods can be named "prototype" (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage_opt { ClassBody_opt }
+
+    [...]
+    6. Let proto be OrdinaryObjectCreate(protoParent).
+    [...]
+    14. Perform MakeConstructor(F, false, proto).
+    [...]
+    20. For each ClassElement m in order from methods, do
+        a. If IsStatic of m is false, then
+            i. Let status be PropertyDefinitionEvaluation of m with arguments proto and false.
+    [...]
+
+    Runtime Semantics: PropertyDefinitionEvaluation
+
+    With parameters object and enumerable.
+
+    GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+    [...]
+    10. Let desc be the PropertyDescriptor { [[Value]]: closure, [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    11. Return ? DefinePropertyOrThrow(object, propKey, desc).
+
+---*/
+
+
+var C = class {
+  * prototype() {}
+};
+
+assert(C.hasOwnProperty('prototype'));
+assert(C.prototype.hasOwnProperty('prototype'));
+assert.notSameValue(C.prototype.prototype, C.prototype);
+verifyProperty(C.prototype, 'prototype', {
+    writable: true,
+    enumerable: false,
+    configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-meth-valid.js
new file mode 100644
index 0000000000..790bb30409
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-special-prototype-meth-valid.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-special-prototype-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Methods can be named "prototype" (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    Runtime Semantics: ClassDefinitionEvaluation
+
+    ClassTail : ClassHeritage_opt { ClassBody_opt } 
+
+    [...]
+    6. Let proto be OrdinaryObjectCreate(protoParent).
+    [...]
+    14. Perform MakeConstructor(F, false, proto).
+    [...]
+    20. For each ClassElement m in order from methods, do
+        a. If IsStatic of m is false, then
+            i. Let status be PropertyDefinitionEvaluation of m with arguments proto and false.
+    [...]
+
+    Runtime Semantics: PropertyDefinitionEvaluation
+
+    With parameters object and enumerable.
+
+    MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody }
+
+    [...]
+    3. Let desc be the PropertyDescriptor { [[Value]]: methodDef.[[Closure]], [[Writable]]: true, [[Enumerable]]: enumerable, [[Configurable]]: true }.
+    4. Return ? DefinePropertyOrThrow(object, methodDef.[[Key]], desc).
+
+---*/
+
+
+var C = class {
+  prototype() {}
+};
+
+assert(C.hasOwnProperty('prototype'));
+assert(C.prototype.hasOwnProperty('prototype'));
+assert.notSameValue(C.prototype.prototype, C.prototype);
+verifyProperty(C.prototype, 'prototype', {
+    writable: true,
+    enumerable: false,
+    configurable: true,
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-accessor-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-accessor-meth-valid.js
new file mode 100644
index 0000000000..6efb50847b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-accessor-meth-valid.js
@@ -0,0 +1,32 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-ctor-accessor-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Accessor Methods can be named constructor (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "prototype".
+
+---*/
+
+
+var C = class {
+  static get constructor() {}
+  static set constructor(_) {}
+  constructor() {} // stacks with a valid constructor
+};
+
+assert(C.hasOwnProperty('constructor'));
+assert(C.prototype.hasOwnProperty('constructor'));
+assert.notSameValue(C.prototype.constructor, C.constructor);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-gen-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-gen-meth-valid.js
new file mode 100644
index 0000000000..2689f31801
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-gen-meth-valid.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-ctor-async-gen-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Async Generator Methods can be named constructor (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "prototype".
+
+---*/
+
+
+var C = class {
+  static async * constructor() {}
+  constructor() {} // stacks with a valid constructor
+};
+
+assert(C.hasOwnProperty('constructor'));
+assert(C.prototype.hasOwnProperty('constructor'));
+assert.notSameValue(C.prototype.constructor, C.constructor);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-meth-valid.js
new file mode 100644
index 0000000000..757b3a45db
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-async-meth-valid.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-ctor-async-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Methods can be named constructor (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "prototype".
+
+---*/
+
+
+var C = class {
+  static async constructor() {}
+  constructor() {} // stacks with a valid constructor
+};
+
+assert(C.hasOwnProperty('constructor'));
+assert(C.prototype.hasOwnProperty('constructor'));
+assert.notSameValue(C.prototype.constructor, C.constructor);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-gen-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-gen-meth-valid.js
new file mode 100644
index 0000000000..af241a4866
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-gen-meth-valid.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-ctor-gen-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Generator Methods can be named constructor (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "prototype".
+
+---*/
+
+
+var C = class {
+  static * constructor() {}
+  constructor() {} // stacks with a valid constructor
+};
+
+assert(C.hasOwnProperty('constructor'));
+assert(C.prototype.hasOwnProperty('constructor'));
+assert.notSameValue(C.prototype.constructor, C.constructor);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-meth-valid.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-meth-valid.js
new file mode 100644
index 0000000000..41908e065d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-ctor-meth-valid.js
@@ -0,0 +1,31 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-ctor-meth-valid.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Methods can be named constructor (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is not "constructor" and HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "constructor" and SpecialMethod of MethodDefinition is true.
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if HasDirectSuper of MethodDefinition is true.
+        It is a Syntax Error if PropName of MethodDefinition is "prototype".
+
+---*/
+
+
+var C = class {
+  static constructor() {}
+  constructor() {} // stacks with a valid constructor
+};
+
+assert(C.hasOwnProperty('constructor'));
+assert(C.prototype.hasOwnProperty('constructor'));
+assert.notSameValue(C.prototype.constructor, C.constructor);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-gen-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..65a66e7737
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
@@ -0,0 +1,23 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Async Generator Private Methods can be named "#prototype" (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static async * #prototype() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-meth-prototype.js
new file mode 100644
index 0000000000..dfc04eaaed
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-async-meth-prototype.js
@@ -0,0 +1,23 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Async Private Methods can be named "#prototype" (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static async #prototype() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-gen-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-gen-meth-prototype.js
new file mode 100644
index 0000000000..3429223917
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-gen-meth-prototype.js
@@ -0,0 +1,23 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Generator Private Methods can be named "#prototype" (class expression)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static * #prototype() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-meth-prototype.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-meth-prototype.js
new file mode 100644
index 0000000000..d54a237758
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/grammar-static-private-meth-prototype.js
@@ -0,0 +1,23 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Private Methods can be named "#prototype" (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static #prototype() {}
+};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/syntax/valid/shell.js b/js/src/tests/test262/language/expressions/class/elements/syntax/valid/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-arguments.js
new file mode 100644
index 0000000000..39c220b5b3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-ternary.template
+/*---
+description: Syntax error if `arguments` used in class field (ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = true ? {} : arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-super.js
new file mode 100644
index 0000000000..c99488b0fc
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/ternary-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-ternary.template
+/*---
+description: Syntax error if `super()` used in class field (ternary expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = true ? {} : super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-arguments.js b/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-arguments.js
new file mode 100644
index 0000000000..94324d65a1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-arguments.js
@@ -0,0 +1,35 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-arguments.case
+// - src/class-elements/initializer-error/cls-expr-fields-typeof.template
+/*---
+description: Syntax error if `arguments` used in class field (typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if ContainsArguments of Initializer is true.
+
+    Static Semantics: ContainsArguments
+      IdentifierReference : Identifier
+
+      1. If the StringValue of Identifier is "arguments", return true.
+      ...
+      For all other grammatical productions, recurse on all nonterminals. If any piece returns true, then return true. Otherwise return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = typeof arguments;
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-super.js b/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-super.js
new file mode 100644
index 0000000000..b194a0bb75
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/typeof-init-err-contains-super.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/class-elements/init-err-contains-super.case
+// - src/class-elements/initializer-error/cls-expr-fields-typeof.template
+/*---
+description: Syntax error if `super()` used in class field (typeof expression)
+esid: sec-class-definitions-static-semantics-early-errors
+features: [class, class-fields-public]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Static Semantics: Early Errors
+
+      FieldDefinition:
+        PropertyNameInitializeropt
+
+      - It is a Syntax Error if Initializer is present and Initializer Contains SuperCall is true.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+var C = class {
+  x = typeof super();
+}
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-names.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-names.js
new file mode 100644
index 0000000000..a85f16d841
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-names.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-names.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Computed property names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = "b";
+
+
+
+var C = class {
+  ;;;;
+  ;;;;;;[x] = 42; [10] = "meep"; ["not initialized"];;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "10"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "10"), false);
+
+verifyProperty(c, "10", {
+  value: "meep",
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "not initialized"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "not initialized"), false);
+
+verifyProperty(c, "not initialized", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-symbol-names.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-symbol-names.js
new file mode 100644
index 0000000000..048df664c3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-computed-symbol-names.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/computed-symbol-names.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Computed property symbol names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, Symbol, computed-property-names, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+var x = Symbol();
+var y = Symbol();
+
+
+
+var C = class {
+  ;;;;
+  ;;;;;;[x]; [y] = 42;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, x), false);
+assert.sameValue(Object.hasOwnProperty.call(C, x), false);
+
+verifyProperty(c, x, {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, y), false);
+assert.sameValue(Object.hasOwnProperty.call(C, y), false);
+
+verifyProperty(c, y, {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "x"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "x"), false);
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "y"), false);
+assert.sameValue(Object.hasOwnProperty.call(c, "y"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-grammar-privatename-identifier-semantics-stringvalue.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-grammar-privatename-identifier-semantics-stringvalue.js
new file mode 100644
index 0000000000..3226834ffa
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-grammar-privatename-identifier-semantics-stringvalue.js
@@ -0,0 +1,98 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-privatename-identifier-semantics-stringvalue.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: PrivateName Static Semantics, StringValue (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+
+    1. Return the String value consisting of the sequence of code
+      units corresponding to PrivateName. In determining the sequence
+      any occurrences of \ UnicodeEscapeSequence are first replaced
+      with the code point represented by the UnicodeEscapeSequence
+      and then the code points of the entire PrivateName are converted
+      to code units by UTF16Encoding (10.1.1) each code point.
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#\u{6F};
+  #\u2118;
+  #ZW_\u200C_NJ;
+  #ZW_\u200D_J;;;;;;;;
+  ;;;;
+  o(value) {
+    this.#o = value;
+    return this.#o;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS METHOD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.o(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names-asi.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names-asi.js
new file mode 100644
index 0000000000..fd445f9098
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names-asi.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names-asi.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Literal property names with ASI (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;a
+  b = 42;;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names.js
new file mode 100644
index 0000000000..ecd7ec55f3
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-literal-names.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/literal-names.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Literal property names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+const fn = function() {}
+
+
+
+var C = class {
+  ;;;;
+  ;;;;;;a; b = 42;
+  c = fn;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: fn,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-field-usage.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-field-usage.js
new file mode 100644
index 0000000000..1df0ac1a00
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-field-usage.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-field-usage.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: PrivateName CallExpression usage (private field) (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#m = 'test262';;;;;;;;
+  ;;;;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-getter-usage.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-getter-usage.js
new file mode 100644
index 0000000000..334f914b70
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-getter-usage.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-getter-usage.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: PrivateName CallExpression usage (Accesor get method) (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;get #m() { return 'test262'; };;;;;;;
+  ;;;;
+  method() {
+    return this.#m;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-usage.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-usage.js
new file mode 100644
index 0000000000..aeaced13eb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-method-usage.js
@@ -0,0 +1,38 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-method-usage.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: PrivateName CallExpression usage (private method) (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    Updated Productions
+
+    CallExpression[Yield, Await]:
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await]
+      SuperCall[?Yield, ?Await]
+      CallExpression[?Yield, ?Await]Arguments[?Yield, ?Await]
+      CallExpression[?Yield, ?Await][Expression[+In, ?Yield, ?Await]]
+      CallExpression[?Yield, ?Await].IdentifierName
+      CallExpression[?Yield, ?Await]TemplateLiteral[?Yield, ?Await]
+      CallExpression[?Yield, ?Await].PrivateName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#m() { return 'test262'; };;;;;;;
+  ;;;;
+  method() {
+    return this.#m();
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.method(), 'test262');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-names.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-names.js
new file mode 100644
index 0000000000..e496c3cd98
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-private-names.js
@@ -0,0 +1,60 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: private names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#x; #y;;;;;;;
+  ;;;;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier-initializer.js
new file mode 100644
index 0000000000..4f0d700fb8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier-initializer.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid FieldDefinition (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;$ = 1; _ = 1; \u{6F} = 1; \u2118 = 1; ZW_\u200C_NJ = 1; ZW_\u200D_J = 1;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier.js
new file mode 100644
index 0000000000..9ddc49a830
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-field-identifier.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-field-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid FieldDefinition (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+
+    PropertyName :
+      LiteralPropertyName
+      ComputedPropertyName
+
+    LiteralPropertyName :
+      IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;$; _; \u{6F}; \u2118; ZW_\u200C_NJ; ZW_\u200D_J;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+c.$ = 1;
+c._ = 1;
+c.\u{6F} = 1;
+c.\u2118 = 1;
+c.ZW_\u200C_NJ = 1;
+c.ZW_\u200D_J = 1;
+
+assert.sameValue(c.$, 1);
+assert.sameValue(c._, 1);
+assert.sameValue(c.\u{6F}, 1);
+assert.sameValue(c.\u2118, 1);
+assert.sameValue(c.ZW_\u200C_NJ, 1);
+assert.sameValue(c.ZW_\u200D_J, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter-alt.js
new file mode 100644
index 0000000000..c9459028bb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter-alt.js
@@ -0,0 +1,117 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private getter (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #℘() {
+    return this.#℘_;
+  }
+  get #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  get #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter.js
new file mode 100644
index 0000000000..2d78a41c2e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-getter.js
@@ -0,0 +1,117 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-getter.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private getter (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      get ClassElementName ( ){ FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  get #$() {
+    return this.#$_;
+  }
+  get #_() {
+    return this.#__;
+  }
+  get #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  get #\u2118() {
+    return this.#\u2118_;
+  }
+  get #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  get #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$_ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method-alt.js
new file mode 100644
index 0000000000..b55528699b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method-alt.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private method (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #℘() {
+    return this.#℘_;
+  }
+  #ZW_‌_NJ() {
+    return this.#ZW_‌_NJ_;
+  }
+  #ZW_‍_J() {
+    return this.#ZW_‍_J_;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  ℘(value) {
+    this.#℘_ = value;
+    return this.#℘();
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+    return this.#ZW_‌_NJ();
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+    return this.#ZW_‍_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method.js
new file mode 100644
index 0000000000..1c368bef8b
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-method.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-method.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private method (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ) { FunctionBody }
+      ...
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  #$() {
+    return this.#$_;
+  }
+  #_() {
+    return this.#__;
+  }
+  #\u{6F}() {
+    return this.#\u{6F}_;
+  }
+  #\u2118() {
+    return this.#\u2118_;
+  }
+  #ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ_;
+  }
+  #ZW_\u200D_J() {
+    return this.#ZW_\u200D_J_;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$_ = value;
+    return this.#$();
+  }
+  _(value) {
+    this.#__ = value;
+    return this.#_();
+  }
+  \u{6F}(value) {
+    this.#\u{6F}_ = value;
+    return this.#\u{6F}();
+  }
+  \u2118(value) {
+    this.#\u2118_ = value;
+    return this.#\u2118();
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+    return this.#ZW_\u200C_NJ();
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+    return this.#ZW_\u200D_J();
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter-alt.js
new file mode 100644
index 0000000000..8f5c606a93
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter-alt.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private setter (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #℘_; #ZW_‌_NJ_; #ZW_‍_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #℘(value) {
+    this.#℘_ = value;
+  }
+  set #ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ_ = value;
+  }
+  set #ZW_‍_J(value) {
+    this.#ZW_‍_J_ = value;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘_;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ_;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter.js
new file mode 100644
index 0000000000..71fd89c7bb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-private-setter.js
@@ -0,0 +1,116 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-private-setter.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName as private setter (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-methods-private, class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      ...
+      ;
+
+    MethodDefinition :
+      ...
+      set ClassElementName ( PropertySetParameterList ) { FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$_; #__; #\u{6F}_; #\u2118_; #ZW_\u200C_NJ_; #ZW_\u200D_J_;
+  set #$(value) {
+    this.#$_ = value;
+  }
+  set #_(value) {
+    this.#__ = value;
+  }
+  set #\u{6F}(value) {
+    this.#\u{6F}_ = value;
+  }
+  set #\u2118(value) {
+    this.#\u2118_ = value;
+  }
+  set #ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ_ = value;
+  }
+  set #ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J_ = value;
+  }
+;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$ = value;
+    return this.#$_;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#__;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F}_;
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118_;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ_;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J_;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-alt.js
new file mode 100644
index 0000000000..a895be6aa1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-alt.js
@@ -0,0 +1,98 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$; #_; #\u{6F}; #℘; #ZW_‌_NJ; #ZW_‍_J;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  ℘(value) {
+    this.#℘ = value;
+    return this.#℘;
+  }
+  ZW_‌_NJ(value) {
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J(value) {
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.℘(1), 1);
+assert.sameValue(c.ZW_‌_NJ(1), 1);
+assert.sameValue(c.ZW_‍_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..ebb0ee19e5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer-alt.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$ = 1; #_ = 1; #\u{6F} = 1; #℘ = 1; #ZW_‌_NJ = 1; #ZW_‍_J = 1;;;;;;;
+  ;;;;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  ℘() {
+    return this.#℘;
+  }
+  ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.℘(), 1);
+assert.sameValue(c.ZW_‌_NJ(), 1);
+assert.sameValue(c.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..f641aaff92
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier-initializer.js
@@ -0,0 +1,92 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$ = 1; #_ = 1; #\u{6F} = 1; #\u2118 = 1; #ZW_\u200C_NJ = 1; #ZW_\u200D_J = 1;;;;;;;
+  ;;;;
+  $() {
+    return this.#$;
+  }
+  _() {
+    return this.#_;
+  }
+  \u{6F}() {
+    return this.#\u{6F};
+  }
+  \u2118() {
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(), 1);
+assert.sameValue(c._(), 1);
+assert.sameValue(c.\u{6F}(), 1);
+assert.sameValue(c.\u2118(), 1);
+assert.sameValue(c.ZW_\u200C_NJ(), 1);
+assert.sameValue(c.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier.js
new file mode 100644
index 0000000000..db28667195
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-privatename-identifier.js
@@ -0,0 +1,98 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;#$; #_; #\u{6F}; #\u2118; #ZW_\u200C_NJ; #ZW_\u200D_J;;;;;;;
+  ;;;;
+  $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.$(1), 1);
+assert.sameValue(c._(1), 1);
+assert.sameValue(c.\u{6F}(1), 1);
+assert.sameValue(c.\u2118(1), 1);
+assert.sameValue(c.ZW_\u200C_NJ(1), 1);
+assert.sameValue(c.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..f0f80e9e06
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #o(value) {
+    yield * await value;
+  }
+  static async * #℘(value) {
+    yield * await value;
+  }
+  static async * #ZW_‌_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_‍_J(value) {
+    yield * await value;
+  };;;;;;;
+  ;;;;
+  static get $() {
+   return this.#$;
+  }
+  static get _() {
+   return this.#_;
+  }
+  static get o() {
+   return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+   return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.o([1]).next(),
+  C.℘([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J([1]).next(), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..3a176b232a
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-generator-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static AsyncGeneratorMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * ClassElementName ( UniqueFormalParameters){ AsyncGeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static async * #$(value) {
+    yield * await value;
+  }
+  static async * #_(value) {
+    yield * await value;
+  }
+  static async * #\u{6F}(value) {
+    yield * await value;
+  }
+  static async * #\u2118(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200C_NJ(value) {
+    yield * await value;
+  }
+  static async * #ZW_\u200D_J(value) {
+    yield * await value;
+  };;;;;;;
+  ;;;;
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$([1]).next(),
+  C._([1]).next(),
+  C.\u{6F}([1]).next(),
+  C.\u2118([1]).next(),
+  C.ZW_\u200C_NJ([1]).next(),
+  C.ZW_\u200D_J([1]).next(),
+]).then(results => {
+
+  assert.sameValue(results[0].value, 1);
+  assert.sameValue(results[1].value, 1);
+  assert.sameValue(results[2].value, 1);
+  assert.sameValue(results[3].value, 1);
+  assert.sameValue(results[4].value, 1);
+  assert.sameValue(results[5].value, 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..98aa088943
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier-alt.js
@@ -0,0 +1,122 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static AsyncMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #o(value) {
+    return await value;
+  }
+  static async #℘(value) {
+    return await value;
+  }
+  static async #ZW_‌_NJ(value) {
+    return await value;
+  }
+  static async #ZW_‍_J(value) {
+    return await value;
+  };;;;;;;
+  ;;;;
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async o(value) {
+    return await this.#o(value);
+  }
+  static async ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#℘(value);
+  }
+  static async ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‌_NJ(value);
+  }
+  static async ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return await this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.o(1),
+  C.℘(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‌_NJ(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+  C.ZW_‍_J(1), // DO NOT CHANGE THE NAME OF THIS FIELD
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier.js
new file mode 100644
index 0000000000..3e1df27230
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-async-method-privatename-identifier.js
@@ -0,0 +1,123 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) async -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-async-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static AsyncMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated, async]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      AsyncMethod
+
+    AsyncMethod :
+      async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ){ AsyncFunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static async #$(value) {
+    return await value;
+  }
+  static async #_(value) {
+    return await value;
+  }
+  static async #\u{6F}(value) {
+    return await value;
+  }
+  static async #\u2118(value) {
+    return await value;
+  }
+  static async #ZW_\u200C_NJ(value) {
+    return await value;
+  }
+  static async #ZW_\u200D_J(value) {
+    return await value;
+  };;;;;;;
+  ;;;;
+  static async $(value) {
+    return await this.#$(value);
+  }
+  static async _(value) {
+    return await this.#_(value);
+  }
+  static async \u{6F}(value) {
+    return await this.#\u{6F}(value);
+  }
+  static async \u2118(value) {
+    return await this.#\u2118(value);
+  }
+  static async ZW_\u200C_NJ(value) {
+    return await this.#ZW_\u200C_NJ(value);
+  }
+  static async ZW_\u200D_J(value) {
+    return await this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+Promise.all([
+  C.$(1),
+  C._(1),
+  C.\u{6F}(1),
+  C.\u2118(1),
+  C.ZW_\u200C_NJ(1),
+  C.ZW_\u200D_J(1),
+]).then(results => {
+
+  assert.sameValue(results[0], 1);
+  assert.sameValue(results[1], 1);
+  assert.sameValue(results[2], 1);
+  assert.sameValue(results[3], 1);
+  assert.sameValue(results[4], 1);
+  assert.sameValue(results[5], 1);
+
+}).then($DONE, $DONE);
+
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..3f5f8f859f
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier-alt.js
@@ -0,0 +1,113 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #o(value) {
+    yield * value;
+  }
+  static * #℘(value) {
+    yield * value;
+  }
+  static * #ZW_‌_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_‍_J(value) {
+    yield * value;
+  };;;;;;;
+  ;;;;
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get o() {
+    return this.#o;
+  }
+  static get ℘() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘;
+  }
+  static get ZW_‌_NJ() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ;
+  }
+  static get ZW_‍_J() { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.o([1]).next().value, 1);
+assert.sameValue(C.℘([1]).next().value, 1);
+assert.sameValue(C.ZW_‌_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_‍_J([1]).next().value, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier.js
new file mode 100644
index 0000000000..8d7d283c56
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-generator-method-privatename-identifier.js
@@ -0,0 +1,114 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-generator-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static GeneratorMethod PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      GeneratorMethod
+
+    GeneratorMethod :
+      * ClassElementName ( UniqueFormalParameters ){ GeneratorBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static * #$(value) {
+    yield * value;
+  }
+  static * #_(value) {
+    yield * value;
+  }
+  static * #\u{6F}(value) {
+    yield * value;
+  }
+  static * #\u2118(value) {
+    yield * value;
+  }
+  static * #ZW_\u200C_NJ(value) {
+    yield * value;
+  }
+  static * #ZW_\u200D_J(value) {
+    yield * value;
+  };;;;;;;
+  ;;;;
+  static get $() {
+    return this.#$;
+  }
+  static get _() {
+    return this.#_;
+  }
+  static get \u{6F}() {
+    return this.#\u{6F};
+  }
+  static get \u2118() {
+    return this.#\u2118;
+  }
+  static get ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static get ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$([1]).next().value, 1);
+assert.sameValue(C._([1]).next().value, 1);
+assert.sameValue(C.\u{6F}([1]).next().value, 1);
+assert.sameValue(C.\u2118([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200C_NJ([1]).next().value, 1);
+assert.sameValue(C.ZW_\u200D_J([1]).next().value, 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier-alt.js
new file mode 100644
index 0000000000..70a0d39b04
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier-alt.js
@@ -0,0 +1,111 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static Method PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #o(value) {
+    return value;
+  }
+  static #℘(value) {
+    return value;
+  }
+  static #ZW_‌_NJ(value) {
+    return value;
+  }
+  static #ZW_‍_J(value) {
+    return value;
+  };;;;;;;
+  ;;;;
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static o(value) {
+    return this.#o(value);
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#℘(value);
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‌_NJ(value);
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    return this.#ZW_‍_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier.js
new file mode 100644
index 0000000000..ae8bd7c329
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-method-privatename-identifier.js
@@ -0,0 +1,111 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-method-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static Method PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    MethodDefinition :
+      ClassElementName ( UniqueFormalParameters ){ FunctionBody }
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$(value) {
+    return value;
+  }
+  static #_(value) {
+    return value;
+  }
+  static #\u{6F}(value) {
+    return value;
+  }
+  static #\u2118(value) {
+    return value;
+  }
+  static #ZW_\u200C_NJ(value) {
+    return value;
+  }
+  static #ZW_\u200D_J(value) {
+    return value;
+  };;;;;;;
+  ;;;;
+  static $(value) {
+    return this.#$(value);
+  }
+  static _(value) {
+    return this.#_(value);
+  }
+  static \u{6F}(value) {
+    return this.#\u{6F}(value);
+  }
+  static \u2118(value) {
+    return this.#\u2118(value);
+  }
+  static ZW_\u200C_NJ(value) {
+    return this.#ZW_\u200C_NJ(value);
+  }
+  static ZW_\u200D_J(value) {
+    return this.#ZW_\u200D_J(value);
+  }
+
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt-by-classname.js
new file mode 100644
index 0000000000..cf6732e731
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt-by-classname.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;;;;;;;
+  ;;;;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static o(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#℘ = value;
+    return C.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‌_NJ = value;
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    C.#ZW_‍_J = value;
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt.js
new file mode 100644
index 0000000000..0f3118a830
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-alt.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$; static #_; static #\u{6F}; static #℘; static #ZW_‌_NJ; static #ZW_‍_J;;;;;;;
+  ;;;;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static o(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static ℘(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#℘ = value;
+    return this.#℘;
+  }
+  static ZW_‌_NJ(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‌_NJ = value;
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J(value) { // DO NOT CHANGE THE NAME OF THIS FIELD
+    this.#ZW_‍_J = value;
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.o(1), 1);
+assert.sameValue(C.℘(1), 1);      // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‌_NJ(1), 1); // DO NOT CHANGE THE NAME OF THIS FIELD
+assert.sameValue(C.ZW_‍_J(1), 1);  // DO NOT CHANGE THE NAME OF THIS FIELD
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-by-classname.js
new file mode 100644
index 0000000000..017d34270c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-by-classname.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-by-classname.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;;;;;;;
+  ;;;;
+  static $(value) {
+    C.#$ = value;
+    return C.#$;
+  }
+  static _(value) {
+    C.#_ = value;
+    return C.#_;
+  }
+  static \u{6F}(value) {
+    C.#\u{6F} = value;
+    return C.#\u{6F};
+  }
+  static \u2118(value) {
+    C.#\u2118 = value;
+    return C.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    C.#ZW_\u200C_NJ = value;
+    return C.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    C.#ZW_\u200D_J = value;
+    return C.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt-by-classname.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt-by-classname.js
new file mode 100644
index 0000000000..dc52cf28d8
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt-by-classname.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt-by-classname.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;;;;;;;
+  ;;;;
+  static $() {
+    return C.#$;
+  }
+  static _() {
+    return C.#_;
+  }
+  static \u{6F}() {
+    return C.#\u{6F};
+  }
+  static ℘() {
+    return C.#℘;
+  }
+  static ZW_‌_NJ() {
+    return C.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return C.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt.js
new file mode 100644
index 0000000000..0cd63a3b69
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer-alt.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer-alt.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #℘ = 1; static #ZW_‌_NJ = 1; static #ZW_‍_J = 1;;;;;;;
+  ;;;;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static ℘() {
+    return this.#℘;
+  }
+  static ZW_‌_NJ() {
+    return this.#ZW_‌_NJ;
+  }
+  static ZW_‍_J() {
+    return this.#ZW_‍_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.℘(), 1);
+assert.sameValue(C.ZW_‌_NJ(), 1);
+assert.sameValue(C.ZW_‍_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer.js
new file mode 100644
index 0000000000..c0fce81e1e
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier-initializer.js
@@ -0,0 +1,93 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier-initializer.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$ = 1; static #_ = 1; static #\u{6F} = 1; static #\u2118 = 1; static #ZW_\u200C_NJ = 1; static #ZW_\u200D_J = 1;;;;;;;
+  ;;;;
+  static $() {
+    return this.#$;
+  }
+  static _() {
+    return this.#_;
+  }
+  static \u{6F}() {
+    return this.#\u{6F};
+  }
+  static \u2118() {
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ() {
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J() {
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(), 1);
+assert.sameValue(C._(), 1);
+assert.sameValue(C.\u{6F}(), 1);
+assert.sameValue(C.\u2118(), 1);
+assert.sameValue(C.ZW_\u200C_NJ(), 1);
+assert.sameValue(C.ZW_\u200D_J(), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier.js
new file mode 100644
index 0000000000..4883988619
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-rs-static-privatename-identifier.js
@@ -0,0 +1,99 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/rs-static-privatename-identifier.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: Valid Static PrivateName (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      MethodDefinition
+      static MethodDefinition
+      FieldDefinition ;
+      static FieldDefinition ;
+      ;
+
+    FieldDefinition :
+      ClassElementName Initializer _opt
+
+    ClassElementName :
+      PropertyName
+      PrivateName
+
+    PrivateName ::
+      # IdentifierName
+
+    IdentifierName ::
+      IdentifierStart
+      IdentifierName IdentifierPart
+
+    IdentifierStart ::
+      UnicodeIDStart
+      $
+      _
+      \ UnicodeEscapeSequence
+
+    IdentifierPart::
+      UnicodeIDContinue
+      $
+      \ UnicodeEscapeSequence
+      <ZWNJ> <ZWJ>
+
+    UnicodeIDStart::
+      any Unicode code point with the Unicode property "ID_Start"
+
+    UnicodeIDContinue::
+      any Unicode code point with the Unicode property "ID_Continue"
+
+
+    NOTE 3
+    The sets of code points with Unicode properties "ID_Start" and
+    "ID_Continue" include, respectively, the code points with Unicode
+    properties "Other_ID_Start" and "Other_ID_Continue".
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #$; static #_; static #\u{6F}; static #\u2118; static #ZW_\u200C_NJ; static #ZW_\u200D_J;;;;;;;
+  ;;;;
+  static $(value) {
+    this.#$ = value;
+    return this.#$;
+  }
+  static _(value) {
+    this.#_ = value;
+    return this.#_;
+  }
+  static \u{6F}(value) {
+    this.#\u{6F} = value;
+    return this.#\u{6F};
+  }
+  static \u2118(value) {
+    this.#\u2118 = value;
+    return this.#\u2118;
+  }
+  static ZW_\u200C_NJ(value) {
+    this.#ZW_\u200C_NJ = value;
+    return this.#ZW_\u200C_NJ;
+  }
+  static ZW_\u200D_J(value) {
+    this.#ZW_\u200D_J = value;
+    return this.#ZW_\u200D_J;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(C.$(1), 1);
+assert.sameValue(C._(1), 1);
+assert.sameValue(C.\u{6F}(1), 1);
+assert.sameValue(C.\u2118(1), 1);
+assert.sameValue(C.ZW_\u200C_NJ(1), 1);
+assert.sameValue(C.ZW_\u200D_J(1), 1);
+
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-fields.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-fields.js
new file mode 100644
index 0000000000..d738ac01d2
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-fields.js
@@ -0,0 +1,60 @@
+// |reftest| shell-option(--enable-private-fields) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: static private fields (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #x; static #y;;;;;;;
+  ;;;;
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods-with-fields.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods-with-fields.js
new file mode 100644
index 0000000000..a8c9dca996
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods-with-fields.js
@@ -0,0 +1,77 @@
+// |reftest| shell-option(--enable-private-fields) shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods-with-fields.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: static private methods with fields (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class-static-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;static #xVal; static #yVal;;;;;;;
+  ;;;;
+  static #x(value) {
+    this.#xVal = value;
+    return this.#xVal;
+  }
+  static #y(value) {
+    this.#yVal = value;
+    return this.#yVal;
+  }
+  static x() {
+    return this.#x(42);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#xVal"), false, "test 7");
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 8");
+assert.sameValue(Object.hasOwnProperty.call(c, "#xVal"), false, "test 9");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#yVal"), false, "test 10");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 11");
+assert.sameValue(Object.hasOwnProperty.call(c, "#yVal"), false, "test 12");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 13");
+assert.sameValue(C.y(), 43, "test 14");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 15");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 16");
+
+assert.sameValue(Object.hasOwnProperty.call(C, "#xVal"), false, "test 17");
+assert.sameValue(Object.hasOwnProperty.call(C, "#yVal"), false, "test 18");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods.js
new file mode 100644
index 0000000000..dd42ea095c
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-static-private-methods.js
@@ -0,0 +1,64 @@
+// |reftest| shell-option(--enable-private-methods) skip-if(!xulRuntime.shell) -- requires shell-options
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-methods.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: static private methods (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-static-methods-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;;;;;;;;
+  ;;;;
+  static #x(value) {
+    return value / 2;
+  }
+  static #y(value) {
+    return value * 2;
+  }
+  static x() {
+    return this.#x(84);
+  }
+  static y() {
+    return this.#y(43);
+  }
+}
+
+var c = new C();
+
+// Test the private methods do not appear as properties before set to value
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#x"), false, "test 1");
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 2");
+assert.sameValue(Object.hasOwnProperty.call(c, "#x"), false, "test 3");
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#y"), false, "test 4");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 5");
+assert.sameValue(Object.hasOwnProperty.call(c, "#y"), false, "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(C.x(), 42, "test 7");
+assert.sameValue(C.y(), 86, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert.sameValue(Object.hasOwnProperty.call(C, "#x"), false, "test 9");
+assert.sameValue(Object.hasOwnProperty.call(C, "#y"), false, "test 10");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-string-literal-names.js b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-string-literal-names.js
new file mode 100644
index 0000000000..2943e2b772
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/class/elements/wrapped-in-sc-string-literal-names.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/string-literal-names.case
+// - src/class-elements/productions/cls-expr-wrapped-in-sc.template
+/*---
+description: String literal names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-public, class]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement:
+      ...
+      FieldDefinition ;
+
+    FieldDefinition:
+      ClassElementName Initializer_opt
+
+    ClassElementName:
+      PropertyName
+
+---*/
+
+
+var C = class {
+  ;;;;
+  ;;;;;;'a'; "b"; 'c' = 39;
+  "d" = 42;;;;;;;
+  ;;;;
+  
+}
+
+var c = new C();
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "a"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "a"), false);
+
+verifyProperty(c, "a", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "b"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "b"), false);
+
+verifyProperty(c, "b", {
+  value: undefined,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "c"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "c"), false);
+
+verifyProperty(c, "c", {
+  value: 39,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+assert.sameValue(Object.hasOwnProperty.call(C.prototype, "d"), false);
+assert.sameValue(Object.hasOwnProperty.call(C, "d"), false);
+
+verifyProperty(c, "d", {
+  value: 42,
+  enumerable: true,
+  writable: true,
+  configurable: true
+});
+
+reportCompare(0, 0);
-- 
cgit v1.2.3