From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../statements/function/13.0-12-s-strict.js        |  20 +++
 .../language/statements/function/13.0-13-s.js      |  21 ++++
 .../language/statements/function/13.0-14-s.js      |  22 ++++
 .../language/statements/function/13.0-15-s.js      |  22 ++++
 .../language/statements/function/13.0-16-s.js      |  22 ++++
 .../language/statements/function/13.0-17-s.js      |  18 +++
 .../language/statements/function/13.0-7-s.js       |  22 ++++
 .../statements/function/13.0-8-s-strict.js         |  22 ++++
 .../statements/function/13.0_4-17gs-strict.js      |  15 +++
 .../statements/function/13.0_4-5gs-strict.js       |  19 +++
 .../statements/function/13.1-13gs-strict.js        |  19 +++
 .../language/statements/function/13.1-19-s.js      |  22 ++++
 .../statements/function/13.1-1gs-strict.js         |  20 +++
 .../statements/function/13.1-2-s-strict.js         |  23 ++++
 .../language/statements/function/13.1-21-s.js      |  22 ++++
 .../language/statements/function/13.1-22-s.js      |  22 ++++
 .../language/statements/function/13.1-23-s.js      |  22 ++++
 .../language/statements/function/13.1-25-s.js      |  23 ++++
 .../language/statements/function/13.1-27-s.js      |  22 ++++
 .../language/statements/function/13.1-29-s.js      |  22 ++++
 .../language/statements/function/13.1-31-s.js      |  23 ++++
 .../language/statements/function/13.1-33-s.js      |  22 ++++
 .../language/statements/function/13.1-39-s.js      |  17 +++
 .../statements/function/13.1-4-s-strict.js         |  23 ++++
 .../language/statements/function/13.1-41-s.js      |  17 +++
 .../statements/function/13.1-4gs-strict.js         |  20 +++
 .../statements/function/13.1-5gs-strict.js         |  19 +++
 .../statements/function/13.1-8gs-strict.js         |  19 +++
 .../language/statements/function/13.2-1-s.js       |  18 +++
 .../language/statements/function/13.2-10-s.js      |  16 +++
 .../language/statements/function/13.2-11-s.js      |  17 +++
 .../language/statements/function/13.2-12-s.js      |  14 +++
 .../language/statements/function/13.2-13-s.js      |  16 +++
 .../language/statements/function/13.2-14-s.js      |  16 +++
 .../language/statements/function/13.2-15-1.js      |  21 ++++
 .../language/statements/function/13.2-15-s.js      |  17 +++
 .../language/statements/function/13.2-16-s.js      |  14 +++
 .../language/statements/function/13.2-17-1.js      |  55 +++++++++
 .../language/statements/function/13.2-17-s.js      |  16 +++
 .../language/statements/function/13.2-18-1.js      |  42 +++++++
 .../language/statements/function/13.2-18-s.js      |  16 +++
 .../statements/function/13.2-19-b-3gs-strict.js    |  19 +++
 .../language/statements/function/13.2-19-s.js      |  17 +++
 .../statements/function/13.2-2-s-strict.js         |  20 +++
 .../language/statements/function/13.2-20-s.js      |  15 +++
 .../language/statements/function/13.2-21-s.js      |  17 +++
 .../language/statements/function/13.2-22-s.js      |  17 +++
 .../language/statements/function/13.2-23-s.js      |  17 +++
 .../language/statements/function/13.2-24-s.js      |  21 ++++
 .../language/statements/function/13.2-25-s.js      |  17 +++
 .../language/statements/function/13.2-26-s.js      |  17 +++
 .../language/statements/function/13.2-27-s.js      |  18 +++
 .../language/statements/function/13.2-28-s.js      |  20 +++
 .../language/statements/function/13.2-3-s.js       |  18 +++
 .../language/statements/function/13.2-30-s.js      |  34 ++++++
 .../statements/function/13.2-4-s-strict.js         |  20 +++
 .../language/statements/function/13.2-5-s.js       |  17 +++
 .../language/statements/function/13.2-6-s.js       |  17 +++
 .../language/statements/function/13.2-7-s.js       |  18 +++
 .../language/statements/function/13.2-8-s.js       |  15 +++
 .../language/statements/function/13.2-9-s.js       |  17 +++
 .../language/statements/function/S10.1.1_A1_T1.js  |  19 +++
 .../language/statements/function/S13.2.1_A1_T1.js  |  74 ++++++++++++
 .../language/statements/function/S13.2.1_A4_T1.js  |  29 +++++
 .../language/statements/function/S13.2.1_A4_T2.js  |  29 +++++
 .../language/statements/function/S13.2.1_A4_T3.js  |  29 +++++
 .../language/statements/function/S13.2.1_A4_T4.js  |  29 +++++
 .../language/statements/function/S13.2.1_A5_T1.js  |  30 +++++
 .../language/statements/function/S13.2.1_A5_T2.js  |  28 +++++
 .../language/statements/function/S13.2.1_A6_T1.js  |  32 +++++
 .../language/statements/function/S13.2.1_A6_T2.js  |  32 +++++
 .../language/statements/function/S13.2.1_A6_T3.js  |  33 +++++
 .../language/statements/function/S13.2.1_A6_T4.js  |  33 +++++
 .../language/statements/function/S13.2.1_A7_T1.js  |  28 +++++
 .../language/statements/function/S13.2.1_A7_T2.js  |  30 +++++
 .../language/statements/function/S13.2.1_A7_T3.js  |  56 +++++++++
 .../language/statements/function/S13.2.1_A7_T4.js  |  58 +++++++++
 .../language/statements/function/S13.2.1_A8_T1.js  |  30 +++++
 .../language/statements/function/S13.2.1_A8_T2.js  |  32 +++++
 .../statements/function/S13.2.1_A9.1_T1.js         |  36 ++++++
 .../statements/function/S13.2.1_A9.1_T2.js         |  36 ++++++
 .../language/statements/function/S13.2.1_A9_T1.js  |  37 ++++++
 .../language/statements/function/S13.2.1_A9_T2.js  |  37 ++++++
 .../language/statements/function/S13.2.2_A10.js    |  40 ++++++
 .../language/statements/function/S13.2.2_A11.js    |  35 ++++++
 .../language/statements/function/S13.2.2_A12.js    |  42 +++++++
 .../language/statements/function/S13.2.2_A13.js    |  33 +++++
 .../language/statements/function/S13.2.2_A14.js    |  33 +++++
 .../language/statements/function/S13.2.2_A15_T1.js |  48 ++++++++
 .../language/statements/function/S13.2.2_A15_T2.js |  50 ++++++++
 .../language/statements/function/S13.2.2_A15_T3.js |  50 ++++++++
 .../language/statements/function/S13.2.2_A15_T4.js |  50 ++++++++
 .../language/statements/function/S13.2.2_A16_T1.js |  38 ++++++
 .../language/statements/function/S13.2.2_A16_T2.js |  38 ++++++
 .../language/statements/function/S13.2.2_A16_T3.js |  46 +++++++
 .../language/statements/function/S13.2.2_A17_T2.js |  72 +++++++++++
 .../language/statements/function/S13.2.2_A17_T3.js |  71 +++++++++++
 .../language/statements/function/S13.2.2_A18_T1.js |  57 +++++++++
 .../language/statements/function/S13.2.2_A18_T2.js |  60 +++++++++
 .../language/statements/function/S13.2.2_A19_T1.js |  30 +++++
 .../language/statements/function/S13.2.2_A19_T2.js |  28 +++++
 .../language/statements/function/S13.2.2_A19_T3.js |  37 ++++++
 .../language/statements/function/S13.2.2_A19_T4.js |  39 ++++++
 .../language/statements/function/S13.2.2_A19_T5.js |  43 +++++++
 .../language/statements/function/S13.2.2_A19_T6.js |  44 +++++++
 .../language/statements/function/S13.2.2_A19_T7.js |  55 +++++++++
 .../language/statements/function/S13.2.2_A19_T8.js |  75 ++++++++++++
 .../language/statements/function/S13.2.2_A1_T1.js  |  46 +++++++
 .../language/statements/function/S13.2.2_A1_T2.js  |  46 +++++++
 .../language/statements/function/S13.2.2_A2.js     |  43 +++++++
 .../language/statements/function/S13.2.2_A3_T1.js  |  36 ++++++
 .../language/statements/function/S13.2.2_A3_T2.js  |  36 ++++++
 .../language/statements/function/S13.2.2_A4_T1.js  |  39 ++++++
 .../language/statements/function/S13.2.2_A4_T2.js  |  41 +++++++
 .../language/statements/function/S13.2.2_A5_T1.js  |  83 +++++++++++++
 .../language/statements/function/S13.2.2_A5_T2.js  |  83 +++++++++++++
 .../language/statements/function/S13.2.2_A6_T1.js  |  44 +++++++
 .../language/statements/function/S13.2.2_A6_T2.js  |  42 +++++++
 .../language/statements/function/S13.2.2_A7_T1.js  |  43 +++++++
 .../language/statements/function/S13.2.2_A7_T2.js  |  45 +++++++
 .../language/statements/function/S13.2.2_A8_T1.js  |  56 +++++++++
 .../language/statements/function/S13.2.2_A8_T2.js  |  54 +++++++++
 .../language/statements/function/S13.2.2_A8_T3.js  |  54 +++++++++
 .../language/statements/function/S13.2.2_A9.js     |  33 +++++
 .../language/statements/function/S13.2_A1_T1.js    |  20 +++
 .../language/statements/function/S13.2_A1_T2.js    |  20 +++
 .../language/statements/function/S13.2_A2_T1.js    |  28 +++++
 .../language/statements/function/S13.2_A2_T2.js    |  30 +++++
 .../language/statements/function/S13.2_A3.js       |  34 ++++++
 .../language/statements/function/S13.2_A4_T1.js    |  50 ++++++++
 .../language/statements/function/S13.2_A4_T2.js    |  50 ++++++++
 .../language/statements/function/S13.2_A5.js       |  33 +++++
 .../statements/function/S13.2_A6_T1-strict.js      |  13 ++
 .../statements/function/S13.2_A6_T2-strict.js      |  15 +++
 .../statements/function/S13.2_A7_T1-strict.js      |  13 ++
 .../statements/function/S13.2_A7_T2-strict.js      |  13 ++
 .../statements/function/S13.2_A8_T1-strict.js      |  13 ++
 .../statements/function/S13.2_A8_T2-strict.js      |  13 ++
 .../test262/language/statements/function/S13_A1.js |  33 +++++
 .../language/statements/function/S13_A10.js        |  32 +++++
 .../language/statements/function/S13_A11_T1.js     |  23 ++++
 .../language/statements/function/S13_A11_T2.js     |  28 +++++
 .../language/statements/function/S13_A11_T3.js     |  27 +++++
 .../language/statements/function/S13_A11_T4.js     |  30 +++++
 .../language/statements/function/S13_A12_T1.js     |  35 ++++++
 .../language/statements/function/S13_A12_T2.js     |  40 ++++++
 .../language/statements/function/S13_A13_T1.js     |  26 ++++
 .../language/statements/function/S13_A13_T2.js     |  27 +++++
 .../language/statements/function/S13_A13_T3.js     |  33 +++++
 .../language/statements/function/S13_A14_T1.js     |  21 ++++
 .../language/statements/function/S13_A15_T1.js     |  23 ++++
 .../language/statements/function/S13_A15_T2.js     |  26 ++++
 .../language/statements/function/S13_A15_T3.js     |  36 ++++++
 .../language/statements/function/S13_A15_T4.js     |  28 +++++
 .../language/statements/function/S13_A15_T5.js     |  35 ++++++
 .../language/statements/function/S13_A17_T1.js     |  47 ++++++++
 .../language/statements/function/S13_A17_T2.js     |  50 ++++++++
 .../language/statements/function/S13_A18.js        |  32 +++++
 .../language/statements/function/S13_A19_T1.js     |  34 ++++++
 .../language/statements/function/S13_A19_T2.js     |  37 ++++++
 .../language/statements/function/S13_A2_T1.js      |  29 +++++
 .../language/statements/function/S13_A2_T2.js      |  29 +++++
 .../language/statements/function/S13_A2_T3.js      |  31 +++++
 .../language/statements/function/S13_A3_T1.js      |  33 +++++
 .../language/statements/function/S13_A3_T2.js      |  33 +++++
 .../language/statements/function/S13_A3_T3.js      |  31 +++++
 .../language/statements/function/S13_A4_T1.js      |  31 +++++
 .../language/statements/function/S13_A4_T2.js      |  33 +++++
 .../language/statements/function/S13_A4_T3.js      |  33 +++++
 .../language/statements/function/S13_A4_T4.js      |  51 ++++++++
 .../language/statements/function/S13_A6_T1.js      |  38 ++++++
 .../language/statements/function/S13_A6_T2.js      |  38 ++++++
 .../language/statements/function/S13_A7_T1.js      |  73 +++++++++++
 .../language/statements/function/S13_A7_T3.js      |  16 +++
 .../language/statements/function/S13_A8_T1.js      |  33 +++++
 .../language/statements/function/S13_A8_T2.js      |  40 ++++++
 .../test262/language/statements/function/S13_A9.js |  21 ++++
 .../test262/language/statements/function/S14_A2.js |  31 +++++
 .../test262/language/statements/function/S14_A3.js |  32 +++++
 .../language/statements/function/S14_A5_T1.js      |  26 ++++
 .../language/statements/function/S14_A5_T2.js      |  25 ++++
 .../function/arguments-with-arguments-fn.js        |  32 +++++
 .../function/arguments-with-arguments-lex.js       |  32 +++++
 .../array-destructuring-param-strict-body.js       | 134 +++++++++++++++++++++
 .../language/statements/function/browser.js        |   0
 .../language/statements/function/cptn-decl.js      |  15 +++
 .../statements/function/dflt-params-abrupt.js      |  63 ++++++++++
 .../function/dflt-params-arg-val-not-undefined.js  |  87 +++++++++++++
 .../function/dflt-params-arg-val-undefined.js      |  70 +++++++++++
 .../statements/function/dflt-params-duplicates.js  |  63 ++++++++++
 .../statements/function/dflt-params-ref-later.js   |  64 ++++++++++
 .../statements/function/dflt-params-ref-prior.js   |  67 +++++++++++
 .../statements/function/dflt-params-ref-self.js    |  64 ++++++++++
 .../statements/function/dflt-params-rest.js        |  67 +++++++++++
 .../function/dflt-params-trailing-comma.js         |  61 ++++++++++
 .../function/dstr/ary-init-iter-close.js           |  73 +++++++++++
 .../dstr/ary-init-iter-get-err-array-prototype.js  |  66 ++++++++++
 .../function/dstr/ary-init-iter-get-err.js         |  60 +++++++++
 .../function/dstr/ary-init-iter-no-close.js        |  73 +++++++++++
 .../statements/function/dstr/ary-name-iter-val.js  |  72 +++++++++++
 .../function/dstr/ary-ptrn-elem-ary-elem-init.js   |  64 ++++++++++
 .../function/dstr/ary-ptrn-elem-ary-elem-iter.js   |  65 ++++++++++
 .../dstr/ary-ptrn-elem-ary-elision-init.js         |  71 +++++++++++
 .../dstr/ary-ptrn-elem-ary-elision-iter.js         |  68 +++++++++++
 .../function/dstr/ary-ptrn-elem-ary-empty-init.js  |  67 +++++++++++
 .../function/dstr/ary-ptrn-elem-ary-empty-iter.js  |  64 ++++++++++
 .../function/dstr/ary-ptrn-elem-ary-rest-init.js   |  68 +++++++++++
 .../function/dstr/ary-ptrn-elem-ary-rest-iter.js   |  71 +++++++++++
 .../function/dstr/ary-ptrn-elem-ary-val-null.js    |  67 +++++++++++
 .../dstr/ary-ptrn-elem-id-init-exhausted.js        |  63 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-fn-name-arrow.js    |  64 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-fn-name-class.js    |  66 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-fn-name-cover.js    |  65 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-fn-name-fn.js       |  65 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-fn-name-gen.js      |  66 ++++++++++
 .../function/dstr/ary-ptrn-elem-id-init-hole.js    |  59 +++++++++
 .../function/dstr/ary-ptrn-elem-id-init-skipped.js |  68 +++++++++++
 .../function/dstr/ary-ptrn-elem-id-init-throws.js  |  58 +++++++++
 .../function/dstr/ary-ptrn-elem-id-init-undef.js   |  62 ++++++++++
 .../dstr/ary-ptrn-elem-id-init-unresolvable.js     |  65 ++++++++++
 .../dstr/ary-ptrn-elem-id-iter-complete.js         |  66 ++++++++++
 .../function/dstr/ary-ptrn-elem-id-iter-done.js    |  61 ++++++++++
 .../dstr/ary-ptrn-elem-id-iter-step-err.js         |  67 +++++++++++
 .../ary-ptrn-elem-id-iter-val-array-prototype.js   |  82 +++++++++++++
 .../function/dstr/ary-ptrn-elem-id-iter-val-err.js |  78 ++++++++++++
 .../function/dstr/ary-ptrn-elem-id-iter-val.js     |  72 +++++++++++
 .../function/dstr/ary-ptrn-elem-obj-id-init.js     |  64 ++++++++++
 .../function/dstr/ary-ptrn-elem-obj-id.js          |  64 ++++++++++
 .../dstr/ary-ptrn-elem-obj-prop-id-init.js         |  74 ++++++++++++
 .../function/dstr/ary-ptrn-elem-obj-prop-id.js     |  74 ++++++++++++
 .../function/dstr/ary-ptrn-elem-obj-val-null.js    |  67 +++++++++++
 .../function/dstr/ary-ptrn-elem-obj-val-undef.js   |  67 +++++++++++
 .../function/dstr/ary-ptrn-elision-exhausted.js    |  69 +++++++++++
 .../function/dstr/ary-ptrn-elision-step-err.js     |  74 ++++++++++++
 .../statements/function/dstr/ary-ptrn-elision.js   |  78 ++++++++++++
 .../statements/function/dstr/ary-ptrn-empty.js     |  61 ++++++++++
 .../function/dstr/ary-ptrn-rest-ary-elem.js        |  85 +++++++++++++
 .../function/dstr/ary-ptrn-rest-ary-elision.js     |  91 ++++++++++++++
 .../function/dstr/ary-ptrn-rest-ary-empty.js       |  74 ++++++++++++
 .../function/dstr/ary-ptrn-rest-ary-rest.js        |  70 +++++++++++
 .../function/dstr/ary-ptrn-rest-id-direct.js       |  65 ++++++++++
 .../dstr/ary-ptrn-rest-id-elision-next-err.js      |  60 +++++++++
 .../function/dstr/ary-ptrn-rest-id-elision.js      |  66 ++++++++++
 .../function/dstr/ary-ptrn-rest-id-exhausted.js    |  62 ++++++++++
 .../dstr/ary-ptrn-rest-id-iter-step-err.js         |  71 +++++++++++
 .../function/dstr/ary-ptrn-rest-id-iter-val-err.js |  73 +++++++++++
 .../statements/function/dstr/ary-ptrn-rest-id.js   |  63 ++++++++++
 .../function/dstr/ary-ptrn-rest-init-ary.js        |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-init-id.js         |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-init-obj.js        |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-not-final-ary.js   |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-not-final-id.js    |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-not-final-obj.js   |  59 +++++++++
 .../function/dstr/ary-ptrn-rest-obj-id.js          |  63 ++++++++++
 .../function/dstr/ary-ptrn-rest-obj-prop-id.js     |  70 +++++++++++
 .../language/statements/function/dstr/browser.js   |   0
 .../function/dstr/dflt-ary-init-iter-close.js      |  73 +++++++++++
 .../dflt-ary-init-iter-get-err-array-prototype.js  |  66 ++++++++++
 .../function/dstr/dflt-ary-init-iter-get-err.js    |  60 +++++++++
 .../function/dstr/dflt-ary-init-iter-no-close.js   |  73 +++++++++++
 .../function/dstr/dflt-ary-name-iter-val.js        |  72 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-elem-init.js       |  64 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-elem-iter.js       |  65 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-elision-init.js    |  71 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-elision-iter.js    |  68 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-empty-init.js      |  67 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-empty-iter.js      |  64 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-rest-init.js       |  68 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-rest-iter.js       |  71 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-ary-val-null.js        |  67 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-exhausted.js   |  63 ++++++++++
 .../dflt-ary-ptrn-elem-id-init-fn-name-arrow.js    |  64 ++++++++++
 .../dflt-ary-ptrn-elem-id-init-fn-name-class.js    |  66 ++++++++++
 .../dflt-ary-ptrn-elem-id-init-fn-name-cover.js    |  65 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js  |  65 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js |  66 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-hole.js        |  59 +++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-skipped.js     |  68 +++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-throws.js      |  58 +++++++++
 .../dstr/dflt-ary-ptrn-elem-id-init-undef.js       |  62 ++++++++++
 .../dflt-ary-ptrn-elem-id-init-unresolvable.js     |  65 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-iter-complete.js    |  66 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-iter-done.js        |  61 ++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-iter-step-err.js    |  67 +++++++++++
 ...lt-ary-ptrn-elem-id-iter-val-array-prototype.js |  82 +++++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-iter-val-err.js     |  78 ++++++++++++
 .../dstr/dflt-ary-ptrn-elem-id-iter-val.js         |  72 +++++++++++
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 .../dstr/dflt-ary-ptrn-elem-obj-val-undef.js       |  67 +++++++++++
 .../dstr/dflt-ary-ptrn-elision-exhausted.js        |  69 +++++++++++
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 .../function/dstr/dflt-ary-ptrn-rest-ary-elem.js   |  85 +++++++++++++
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 .../function/dstr/dflt-ary-ptrn-rest-ary-rest.js   |  70 +++++++++++
 .../function/dstr/dflt-ary-ptrn-rest-id-direct.js  |  65 ++++++++++
 .../dstr/dflt-ary-ptrn-rest-id-elision-next-err.js |  60 +++++++++
 .../function/dstr/dflt-ary-ptrn-rest-id-elision.js |  66 ++++++++++
 .../dstr/dflt-ary-ptrn-rest-id-exhausted.js        |  62 ++++++++++
 .../dstr/dflt-ary-ptrn-rest-id-iter-step-err.js    |  71 +++++++++++
 .../dstr/dflt-ary-ptrn-rest-id-iter-val-err.js     |  73 +++++++++++
 .../function/dstr/dflt-ary-ptrn-rest-id.js         |  63 ++++++++++
 .../function/dstr/dflt-ary-ptrn-rest-init-ary.js   |  59 +++++++++
 .../function/dstr/dflt-ary-ptrn-rest-init-id.js    |  59 +++++++++
 .../function/dstr/dflt-ary-ptrn-rest-init-obj.js   |  59 +++++++++
 .../dstr/dflt-ary-ptrn-rest-not-final-ary.js       |  59 +++++++++
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 .../function/dstr/dflt-ary-ptrn-rest-obj-id.js     |  63 ++++++++++
 .../dstr/dflt-ary-ptrn-rest-obj-prop-id.js         |  70 +++++++++++
 .../statements/function/dstr/dflt-obj-init-null.js |  54 +++++++++
 .../function/dstr/dflt-obj-init-undefined.js       |  54 +++++++++
 .../function/dstr/dflt-obj-ptrn-empty.js           |  62 ++++++++++
 .../dstr/dflt-obj-ptrn-id-get-value-err.js         |  61 ++++++++++
 .../dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js    |  63 ++++++++++
 .../dstr/dflt-obj-ptrn-id-init-fn-name-class.js    |  65 ++++++++++
 .../dstr/dflt-obj-ptrn-id-init-fn-name-cover.js    |  64 ++++++++++
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 .../dstr/dflt-obj-ptrn-id-init-fn-name-gen.js      |  65 ++++++++++
 .../function/dstr/dflt-obj-ptrn-id-init-skipped.js |  67 +++++++++++
 .../function/dstr/dflt-obj-ptrn-id-init-throws.js  |  61 ++++++++++
 .../dstr/dflt-obj-ptrn-id-init-unresolvable.js     |  65 ++++++++++
 .../dstr/dflt-obj-ptrn-id-trailing-comma.js        |  57 +++++++++
 .../function/dstr/dflt-obj-ptrn-list-err.js        |  62 ++++++++++
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 .../dstr/dflt-obj-ptrn-prop-ary-value-null.js      |  56 +++++++++
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 .../dstr/dflt-obj-ptrn-prop-id-init-skipped.js     |  79 ++++++++++++
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 .../dstr/dflt-obj-ptrn-prop-id-trailing-comma.js   |  61 ++++++++++
 .../function/dstr/dflt-obj-ptrn-prop-id.js         |  60 +++++++++
 .../function/dstr/dflt-obj-ptrn-prop-obj-init.js   |  66 ++++++++++
 .../dstr/dflt-obj-ptrn-prop-obj-value-null.js      |  56 +++++++++
 .../dstr/dflt-obj-ptrn-prop-obj-value-undef.js     |  56 +++++++++
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 .../function/dstr/dflt-obj-ptrn-rest-getter.js     |  59 +++++++++
 .../dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js |  67 +++++++++++
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 .../statements/function/dstr/obj-init-null.js      |  54 +++++++++
 .../statements/function/dstr/obj-init-undefined.js |  54 +++++++++
 .../statements/function/dstr/obj-ptrn-empty.js     |  62 ++++++++++
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 .../dstr/obj-ptrn-id-init-fn-name-arrow.js         |  63 ++++++++++
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 .../function/dstr/obj-ptrn-id-trailing-comma.js    |  57 +++++++++
 .../statements/function/dstr/obj-ptrn-list-err.js  |  62 ++++++++++
 .../function/dstr/obj-ptrn-prop-ary-init.js        |  66 ++++++++++
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 .../dstr/obj-ptrn-prop-id-get-value-err.js         |  63 ++++++++++
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 .../function/dstr/obj-ptrn-prop-id-init.js         |  60 +++++++++
 .../dstr/obj-ptrn-prop-id-trailing-comma.js        |  61 ++++++++++
 .../statements/function/dstr/obj-ptrn-prop-id.js   |  60 +++++++++
 .../function/dstr/obj-ptrn-prop-obj-init.js        |  66 ++++++++++
 .../function/dstr/obj-ptrn-prop-obj-value-null.js  |  56 +++++++++
 .../function/dstr/obj-ptrn-prop-obj-value-undef.js |  56 +++++++++
 .../statements/function/dstr/obj-ptrn-prop-obj.js  |  64 ++++++++++
 .../function/dstr/obj-ptrn-rest-getter.js          |  59 +++++++++
 .../dstr/obj-ptrn-rest-skip-non-enumerable.js      |  67 +++++++++++
 .../function/dstr/obj-ptrn-rest-val-obj.js         |  66 ++++++++++
 .../language/statements/function/dstr/shell.js     |   0
 .../statements/function/early-body-super-call.js   |  19 +++
 .../statements/function/early-body-super-prop.js   |  19 +++
 .../statements/function/early-errors/browser.js    |   0
 .../invalid-names-call-expression-bad-reference.js |  41 +++++++
 .../invalid-names-call-expression-this.js          |  41 +++++++
 ...nvalid-names-member-expression-bad-reference.js |  41 +++++++
 .../invalid-names-member-expression-this.js        |  41 +++++++
 .../statements/function/early-errors/shell.js      |   0
 .../statements/function/early-params-super-call.js |  17 +++
 .../statements/function/early-params-super-prop.js |  17 +++
 .../statements/function/enable-strict-via-body.js  |  27 +++++
 .../function/enable-strict-via-outer-body.js       |  27 +++++
 .../enable-strict-via-outer-script-strict.js       |  27 +++++
 .../function/eval-var-scope-syntax-err.js          |  59 +++++++++
 .../function/forbidden-ext/b1/browser.js           |   0
 ...h-forbidden-ext-direct-access-prop-arguments.js |  35 ++++++
 ...meth-forbidden-ext-direct-access-prop-caller.js |  35 ++++++
 .../statements/function/forbidden-ext/b1/shell.js  |   0
 .../function/forbidden-ext/b2/browser.js           |   0
 ...dden-ext-indirect-access-own-prop-caller-get.js |  61 ++++++++++
 ...en-ext-indirect-access-own-prop-caller-value.js |  61 ++++++++++
 ...cl-forbidden-ext-indirect-access-prop-caller.js |  61 ++++++++++
 .../statements/function/forbidden-ext/b2/shell.js  |   0
 .../statements/function/forbidden-ext/browser.js   |   0
 .../statements/function/forbidden-ext/shell.js     |   0
 .../statements/function/invalid-2-names.js         |  17 +++
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 .../statements/function/invalid-function-body-1.js |  18 +++
 .../statements/function/invalid-function-body-2.js |  18 +++
 .../statements/function/invalid-function-body-3.js |  18 +++
 .../statements/function/invalid-name-dot.js        |  17 +++
 .../statements/function/invalid-name-two-dots.js   |  17 +++
 .../language/statements/function/length-dflt.js    |  62 ++++++++++
 .../statements/function/line-terminator.js         |  50 ++++++++
 .../function/name-arguments-non-strict.js          |  14 +++
 .../function/name-arguments-strict-body.js         |  19 +++
 .../function/name-arguments-strict-strict.js       |  19 +++
 .../statements/function/name-eval-non-strict.js    |  14 +++
 .../statements/function/name-eval-strict-body.js   |  19 +++
 .../statements/function/name-eval-strict-strict.js |  19 +++
 .../statements/function/name-eval-stricteval.js    |  17 +++
 .../language/statements/function/name-unicode.js   |  20 +++
 .../test262/language/statements/function/name.js   |  26 ++++
 .../object-destructuring-param-strict-body.js      | 134 +++++++++++++++++++++
 .../function/param-arguments-non-strict.js         |  14 +++
 .../function/param-arguments-strict-body.js        |  23 ++++
 .../function/param-arguments-strict-strict.js      |  24 ++++
 .../function/param-dflt-yield-non-strict.js        |  31 +++++
 .../function/param-dflt-yield-strict-strict.js     |  27 +++++
 .../function/param-duplicated-non-strict.js        |  14 +++
 .../function/param-duplicated-strict-1-strict.js   |  24 ++++
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 .../function/param-duplicated-strict-3-strict.js   |  24 ++++
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 .../function/param-duplicated-strict-body-3.js     |  23 ++++
 .../param-eval-non-strict-is-correct-value.js      |  23 ++++
 .../statements/function/param-eval-non-strict.js   |  14 +++
 .../statements/function/param-eval-strict-body.js  |  23 ++++
 .../function/param-eval-strict-strict.js           |  24 ++++
 .../statements/function/param-eval-stricteval.js   |  22 ++++
 .../function/params-dflt-args-unmapped.js          |  84 +++++++++++++
 .../function/params-dflt-ref-arguments.js          |  63 ++++++++++
 .../function/params-trailing-comma-multiple.js     |  61 ++++++++++
 .../function/params-trailing-comma-single.js       |  60 +++++++++
 .../statements/function/rest-param-strict-body.js  | 134 +++++++++++++++++++++
 .../rest-params-trailing-comma-early-error.js      |  59 +++++++++
 .../statements/function/scope-body-lex-distinct.js |  55 +++++++++
 .../function/scope-param-elem-var-close.js         |  33 +++++
 .../function/scope-param-elem-var-open.js          |  31 +++++
 .../function/scope-param-rest-elem-var-close.js    |  31 +++++
 .../function/scope-param-rest-elem-var-open.js     |  31 +++++
 .../function/scope-paramsbody-var-close.js         |  37 ++++++
 .../function/scope-paramsbody-var-open.js          |  35 ++++++
 .../test262/language/statements/function/shell.js  |   0
 .../function/static-init-await-binding-invalid.js  |  28 +++++
 .../function/static-init-await-binding-valid.js    |  20 +++
 .../function/unscopables-with-in-nested-fn.js      | 104 ++++++++++++++++
 .../statements/function/unscopables-with.js        |  98 +++++++++++++++
 .../function/use-strict-with-non-simple-param.js   |  22 ++++
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 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-skipped.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-throws.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-unresolvable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-list-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-value-null.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-eval-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-get-value-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-skipped.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-throws.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-null.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-undef.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-getter.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-val-obj.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-init-null.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-init-undefined.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-empty.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-get-value-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-arrow.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-class.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-cover.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-gen.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-skipped.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-throws.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-unresolvable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-list-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-value-null.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-eval-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-get-value-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-skipped.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-throws.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-unresolvable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-trailing-comma.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-init.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-null.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-undef.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-getter.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-skip-non-enumerable.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-val-obj.js
 create mode 100644 js/src/tests/test262/language/statements/function/dstr/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-body-super-call.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-body-super-prop.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/browser.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-this.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-bad-reference.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-this.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-errors/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-params-super-call.js
 create mode 100644 js/src/tests/test262/language/statements/function/early-params-super-prop.js
 create mode 100644 js/src/tests/test262/language/statements/function/enable-strict-via-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/enable-strict-via-outer-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/enable-strict-via-outer-script-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/eval-var-scope-syntax-err.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b1/browser.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-arguments.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-caller.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b1/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b2/browser.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-prop-caller.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/b2/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/browser.js
 create mode 100644 js/src/tests/test262/language/statements/function/forbidden-ext/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-2-names.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-3-names.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-function-body-1.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-function-body-2.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-function-body-3.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-name-dot.js
 create mode 100644 js/src/tests/test262/language/statements/function/invalid-name-two-dots.js
 create mode 100644 js/src/tests/test262/language/statements/function/length-dflt.js
 create mode 100644 js/src/tests/test262/language/statements/function/line-terminator.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-arguments-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-arguments-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-arguments-strict-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-eval-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-eval-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-eval-strict-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-eval-stricteval.js
 create mode 100644 js/src/tests/test262/language/statements/function/name-unicode.js
 create mode 100644 js/src/tests/test262/language/statements/function/name.js
 create mode 100644 js/src/tests/test262/language/statements/function/object-destructuring-param-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-arguments-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-arguments-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-arguments-strict-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-dflt-yield-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-dflt-yield-strict-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-1-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-2-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-3-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-body-1.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-body-2.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-duplicated-strict-body-3.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-eval-non-strict-is-correct-value.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-eval-non-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-eval-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-eval-strict-strict.js
 create mode 100644 js/src/tests/test262/language/statements/function/param-eval-stricteval.js
 create mode 100644 js/src/tests/test262/language/statements/function/params-dflt-args-unmapped.js
 create mode 100644 js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js
 create mode 100644 js/src/tests/test262/language/statements/function/params-trailing-comma-multiple.js
 create mode 100644 js/src/tests/test262/language/statements/function/params-trailing-comma-single.js
 create mode 100644 js/src/tests/test262/language/statements/function/rest-param-strict-body.js
 create mode 100644 js/src/tests/test262/language/statements/function/rest-params-trailing-comma-early-error.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-body-lex-distinct.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-param-elem-var-close.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-close.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-open.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-paramsbody-var-close.js
 create mode 100644 js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js
 create mode 100644 js/src/tests/test262/language/statements/function/shell.js
 create mode 100644 js/src/tests/test262/language/statements/function/static-init-await-binding-invalid.js
 create mode 100644 js/src/tests/test262/language/statements/function/static-init-await-binding-valid.js
 create mode 100644 js/src/tests/test262/language/statements/function/unscopables-with-in-nested-fn.js
 create mode 100644 js/src/tests/test262/language/statements/function/unscopables-with.js
 create mode 100644 js/src/tests/test262/language/statements/function/use-strict-with-non-simple-param.js

(limited to 'js/src/tests/test262/language/statements/function')

diff --git a/js/src/tests/test262/language/statements/function/13.0-12-s-strict.js b/js/src/tests/test262/language/statements/function/13.0-12-s-strict.js
new file mode 100644
index 0000000000..689b521ee8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-12-s-strict.js
@@ -0,0 +1,20 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-12-s
+description: >
+    Strict Mode - SourceElements is not evaluated as strict mode code
+    when a Function constructor is contained in strict mode code and
+    the function constructor body is not strict
+flags: [onlyStrict]
+---*/
+
+        var _13_0_12_fun = new Function(" ","eval = 42;");
+        _13_0_12_fun();
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-13-s.js b/js/src/tests/test262/language/statements/function/13.0-13-s.js
new file mode 100644
index 0000000000..373cc10b3c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-13-s.js
@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-13-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the function body of a Function constructor begins with a Strict
+    Directive
+flags: [noStrict]
+---*/
+
+       
+assert.throws(SyntaxError, function() {
+            eval("var _13_0_13_fun = new Function(\" \", \"'use strict'; eval = 42;\"); _13_0_13_fun();");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-14-s.js b/js/src/tests/test262/language/statements/function/13.0-14-s.js
new file mode 100644
index 0000000000..f9451634a7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-14-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-14-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the function body of a Function constructor contains a Strict
+    Directive
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            var _13_0_14_fun = new Function(" ", "'use strict'; eval = 42; ");
+            _13_0_14_fun();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-15-s.js b/js/src/tests/test262/language/statements/function/13.0-15-s.js
new file mode 100644
index 0000000000..d05e197a71
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-15-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-15-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    a FunctionDeclaration is contained in strict mode code within eval
+    code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function _13_0_15_fun() {eval = 42;};");
+            _13_0_15_fun();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-16-s.js b/js/src/tests/test262/language/statements/function/13.0-16-s.js
new file mode 100644
index 0000000000..3d6c287da4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-16-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-16-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    a FunctionExpression is contained in strict mode code within eval
+    code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; var _13_0_16_fun = function () {eval = 42;};");
+            _13_0_16_fun();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-17-s.js b/js/src/tests/test262/language/statements/function/13.0-17-s.js
new file mode 100644
index 0000000000..8049390a5a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-17-s.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-17-s
+description: >
+    Strict Mode - SourceElements is not evaluated as strict mode code
+    when a Function constructor is contained in strict mode code
+    within eval code
+flags: [noStrict]
+---*/
+
+        eval("'use strict'; var _13_0_17_fun = new Function('eval = 42;'); _13_0_17_fun();");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-7-s.js b/js/src/tests/test262/language/statements/function/13.0-7-s.js
new file mode 100644
index 0000000000..88175ea2a1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-7-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-7-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the code of this FunctionDeclaration is contained in non-strict
+    mode but the call to eval is a direct call in strict mode code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function _13_0_7_fun() {eval = 42;};");
+            _13_0_7_fun();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0-8-s-strict.js b/js/src/tests/test262/language/statements/function/13.0-8-s-strict.js
new file mode 100644
index 0000000000..1fad80b14d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0-8-s-strict.js
@@ -0,0 +1,22 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13; 
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-8-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the code of this FunctionExpression is contained in non-strict
+    mode but the call to eval is a direct call in strict mode code
+flags: [onlyStrict]
+---*/
+
+assert.throws(SyntaxError, function() {
+            eval("var _13_0_8_fun = function () {eval = 42;};");
+            _13_0_8_fun();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0_4-17gs-strict.js b/js/src/tests/test262/language/statements/function/13.0_4-17gs-strict.js
new file mode 100644
index 0000000000..903001cf8b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0_4-17gs-strict.js
@@ -0,0 +1,15 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0_4-17gs
+description: >
+    Strict Mode - SourceElements is not evaluated as strict mode code
+    when a Function constructor is contained in strict mode code
+flags: [onlyStrict]
+---*/
+
+var _13_0_4_17_fun = new Function('eval = 42;');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.0_4-5gs-strict.js b/js/src/tests/test262/language/statements/function/13.0_4-5gs-strict.js
new file mode 100644
index 0000000000..c0017683fa
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.0_4-5gs-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0_4-5gs
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    a FunctionDeclaration is contained in strict mode code
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_0_4_5_fun() { eval = 42; };
diff --git a/js/src/tests/test262/language/statements/function/13.1-13gs-strict.js b/js/src/tests/test262/language/statements/function/13.1-13gs-strict.js
new file mode 100644
index 0000000000..be377cfcfc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-13gs-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-13gs
+description: >
+    StrictMode - SyntaxError is thrown if 'arguments' occurs as the
+    Identifier of a FunctionDeclaration
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function arguments() { };
diff --git a/js/src/tests/test262/language/statements/function/13.1-19-s.js b/js/src/tests/test262/language/statements/function/13.1-19-s.js
new file mode 100644
index 0000000000..bdac2fef4d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-19-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-19-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration in strict eval code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict';function _13_1_19_fun(arguments) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-1gs-strict.js b/js/src/tests/test262/language/statements/function/13.1-1gs-strict.js
new file mode 100644
index 0000000000..f376748867
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-1gs-strict.js
@@ -0,0 +1,20 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-1gs
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'eval'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_1_fun(eval) { }
diff --git a/js/src/tests/test262/language/statements/function/13.1-2-s-strict.js b/js/src/tests/test262/language/statements/function/13.1-2-s-strict.js
new file mode 100644
index 0000000000..d7869bec7f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-2-s-strict.js
@@ -0,0 +1,23 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-2-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'eval'
+    appears within a FormalParameterList of a strict mode
+    FunctionExpression
+flags: [onlyStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("var _13_1_2_fun = function (eval) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-21-s.js b/js/src/tests/test262/language/statements/function/13.1-21-s.js
new file mode 100644
index 0000000000..2c28c9b494
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-21-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-21-s
+description: >
+    StrictMode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionExpression in strict eval code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; var _13_1_21_fun = function (arguments) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-22-s.js b/js/src/tests/test262/language/statements/function/13.1-22-s.js
new file mode 100644
index 0000000000..33798b6bac
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-22-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-22-s
+description: >
+    StrictMode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionExpression when FuctionBody is strict code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("var _13_1_22_fun = function (arguments) { 'use strict'; }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-23-s.js b/js/src/tests/test262/language/statements/function/13.1-23-s.js
new file mode 100644
index 0000000000..9cb04206cc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-23-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-23-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration that is contained in eval strict code and
+    the function has two identical parameters
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function _13_1_23_fun(param, param) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-25-s.js b/js/src/tests/test262/language/statements/function/13.1-25-s.js
new file mode 100644
index 0000000000..a3cb436482
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-25-s.js
@@ -0,0 +1,23 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-25-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration that is contained in eval strict code and
+    the function has two identical parameters which are separated by a
+    unique parameter name
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function _13_1_25_fun(param1, param2, param1) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-27-s.js b/js/src/tests/test262/language/statements/function/13.1-27-s.js
new file mode 100644
index 0000000000..9662c3f550
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-27-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-27-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration that is contained in eval strict code and
+    the function has three identical parameters
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function _13_1_27_fun(param, param, param) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-29-s.js b/js/src/tests/test262/language/statements/function/13.1-29-s.js
new file mode 100644
index 0000000000..809c463902
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-29-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-29-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionExpression that is contained in eval strict code and the
+    function has two identical parameters
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; var _13_1_29_fun = function (param, param) { };");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-31-s.js b/js/src/tests/test262/language/statements/function/13.1-31-s.js
new file mode 100644
index 0000000000..8fdecb495a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-31-s.js
@@ -0,0 +1,23 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-31-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionExpression that is contained in eval strict code and the
+    function has two identical parameters, which are separated by a
+    unique parameter name
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; var _13_1_31_fun = function (param1, param2, param1) { };");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-33-s.js b/js/src/tests/test262/language/statements/function/13.1-33-s.js
new file mode 100644
index 0000000000..a99e51d68c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-33-s.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-33-s
+description: >
+    Strict Mode - SyntaxError is thrown if function is created using a
+    FunctionExpression that is contained in eval strict code and the
+    function has three identical parameters
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; var _13_1_33_fun = function (param, param, param) { };")
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-39-s.js b/js/src/tests/test262/language/statements/function/13.1-39-s.js
new file mode 100644
index 0000000000..066a4b8695
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-39-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-39-s
+description: >
+    StrictMode - SyntaxError is thrown if 'arguments' occurs as the
+    function name of a FunctionDeclaration in strict eval code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function arguments() { };")
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-4-s-strict.js b/js/src/tests/test262/language/statements/function/13.1-4-s-strict.js
new file mode 100644
index 0000000000..df8c40f7bf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-4-s-strict.js
@@ -0,0 +1,23 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-4-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionExpression
+flags: [onlyStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("var _13_1_4_fun = function (arguments) { };");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-41-s.js b/js/src/tests/test262/language/statements/function/13.1-41-s.js
new file mode 100644
index 0000000000..9e0d146af7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-41-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-41-s
+description: >
+    StrictMode - SyntaxError is thrown if 'arguments' occurs as the
+    Identifier of a FunctionExpression in strict eval code
+flags: [noStrict]
+---*/
+
+        var _13_1_41_s = {};
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; _13_1_41_s.x = function arguments() {};");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.1-4gs-strict.js b/js/src/tests/test262/language/statements/function/13.1-4gs-strict.js
new file mode 100644
index 0000000000..d797a5b9cd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-4gs-strict.js
@@ -0,0 +1,20 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-4gs
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionExpression
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+var _13_1_4_fun = function (arguments) { };
diff --git a/js/src/tests/test262/language/statements/function/13.1-5gs-strict.js b/js/src/tests/test262/language/statements/function/13.1-5gs-strict.js
new file mode 100644
index 0000000000..afe138f50c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-5gs-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-5gs
+description: >
+    Strict Mode - SyntaxError is thrown if a FunctionDeclaration has
+    two identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_5_fun(param, param) { }
diff --git a/js/src/tests/test262/language/statements/function/13.1-8gs-strict.js b/js/src/tests/test262/language/statements/function/13.1-8gs-strict.js
new file mode 100644
index 0000000000..c378ad1c2b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.1-8gs-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-8gs
+description: >
+    Strict Mode - SyntaxError is thrown if a FunctionExpression has
+    two identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+var _13_1_8_fun = function (param, param) { };
diff --git a/js/src/tests/test262/language/statements/function/13.2-1-s.js b/js/src/tests/test262/language/statements/function/13.2-1-s.js
new file mode 100644
index 0000000000..47729a26ca
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-1-s.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-1-s
+description: >
+    StrictMode -  Writing or reading from a property named 'caller' of
+    function objects is allowed under both strict and normal modes.
+---*/
+
+        var foo = function () {
+            this.caller = 12;
+        }
+        var obj = new foo();
+
+assert.sameValue(obj.caller, 12, 'obj.caller');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-10-s.js b/js/src/tests/test262/language/statements/function/13.2-10-s.js
new file mode 100644
index 0000000000..51ebae59bb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-10-s.js
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-10-s
+description: >
+    StrictMode - writing a property named 'caller' of function objects
+    is not allowed outside the function
+---*/
+
+        var foo = Function("'use strict';");
+assert.throws(TypeError, function() {
+            foo.caller = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-11-s.js b/js/src/tests/test262/language/statements/function/13.2-11-s.js
new file mode 100644
index 0000000000..c3c30fa6c4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-11-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-11-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails outside of the function
+---*/
+
+        var foo = Function("'use strict';");
+        
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "caller", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-12-s.js b/js/src/tests/test262/language/statements/function/13.2-12-s.js
new file mode 100644
index 0000000000..c31b97e710
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-12-s.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-12-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails inside the function
+---*/
+
+            var foo = Function("'use strict'; for (var tempIndex in this) {assert.notSameValue(tempIndex, 'caller', 'tempIndex');}");
+            foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-13-s.js b/js/src/tests/test262/language/statements/function/13.2-13-s.js
new file mode 100644
index 0000000000..b809fa2939
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-13-s.js
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-13-s
+description: >
+    StrictMode - reading a property named 'arguments' of function
+    objects is not allowed outside the function
+---*/
+
+        var foo = new Function("'use strict';");
+assert.throws(TypeError, function() {
+            var temp = foo.arguments;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-14-s.js b/js/src/tests/test262/language/statements/function/13.2-14-s.js
new file mode 100644
index 0000000000..401e8f5b88
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-14-s.js
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-14-s
+description: >
+    StrictMode - writing a property named 'arguments' of function
+    objects is not allowed outside the function
+---*/
+
+        var foo = new Function("'use strict';");
+assert.throws(TypeError, function() {
+            foo.arguments = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-15-1.js b/js/src/tests/test262/language/statements/function/13.2-15-1.js
new file mode 100644
index 0000000000..b70d843dd1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-15-1.js
@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-15-1
+description: >
+    Function Object has length as its own property and does not invoke
+    the setter defined on Function.prototype.length (Step 15)
+includes: [propertyHelper.js]
+---*/
+
+var fun = function (x, y) { };
+
+assert(fun.hasOwnProperty("length"));
+assert.sameValue(fun.length, 2);
+
+verifyNotEnumerable(fun, "length");
+verifyNotWritable(fun, "length");
+verifyConfigurable(fun, "length");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-15-s.js b/js/src/tests/test262/language/statements/function/13.2-15-s.js
new file mode 100644
index 0000000000..d4242f0104
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-15-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-15-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails outside of the function
+---*/
+
+        var foo = new Function("'use strict';");
+        
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "arguments", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-16-s.js b/js/src/tests/test262/language/statements/function/13.2-16-s.js
new file mode 100644
index 0000000000..befc8af88f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-16-s.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-16-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails inside the function
+---*/
+
+            var foo = new Function("'use strict'; for (var tempIndex in this) {assert.notSameValue(tempIndex, 'arguments', 'tempIndex');}");
+            foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-17-1.js b/js/src/tests/test262/language/statements/function/13.2-17-1.js
new file mode 100644
index 0000000000..bed00f4e65
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-17-1.js
@@ -0,0 +1,55 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-17-1
+description: >
+    Function Object has 'constructor' as its own property, it is not
+    enumerable and does not invoke the setter defined on
+    Function.prototype.constructor (Step 17)
+---*/
+
+        var desc = Object.getOwnPropertyDescriptor(Object.prototype, "constructor");
+
+            var getFunc = function () {
+                return 100;
+            };
+
+            var data = "data";
+            var setFunc = function (value) {
+                data = value;
+            };
+
+            Object.defineProperty(Object.prototype, "constructor", {
+                get: getFunc,
+                set: setFunc,
+                configurable: true
+            });
+
+            var fun = function () {};
+
+            var verifyValue = false;
+            verifyValue = typeof fun.prototype.constructor === "function";
+
+            var verifyEnumerable = false;
+            for (var p in fun.prototype) {
+                if (p === "constructor" && fun.prototype.hasOwnProperty("constructor")) {
+                    verifyEnumerable = true;
+                }
+            }
+
+            var verifyWritable = false;
+            fun.prototype.constructor = 12;
+            verifyWritable = (fun.prototype.constructor === 12);
+
+            var verifyConfigurable = false;
+            delete fun.prototype.constructor;
+            verifyConfigurable = fun.hasOwnProperty("constructor");
+
+assert(verifyValue, 'verifyValue !== true');
+assert(verifyWritable, 'verifyWritable !== true');
+assert.sameValue(verifyEnumerable, false, 'verifyEnumerable');
+assert.sameValue(verifyConfigurable, false, 'verifyConfigurable');
+assert.sameValue(data, "data", 'data');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-17-s.js b/js/src/tests/test262/language/statements/function/13.2-17-s.js
new file mode 100644
index 0000000000..085f40f6dc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-17-s.js
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-17-s
+description: >
+    StrictMode - reading a property named 'arguments' of function
+    objects is not allowed outside the function
+---*/
+
+        var foo = Function("'use strict';");
+assert.throws(TypeError, function() {
+            var temp = foo.arguments;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-18-1.js b/js/src/tests/test262/language/statements/function/13.2-18-1.js
new file mode 100644
index 0000000000..f03cc05137
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-18-1.js
@@ -0,0 +1,42 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-18-1
+description: >
+    Function Object has 'prototype' as its own property, it is not
+    enumerable and does not invoke the setter defined on
+    Function.prototype (Step 18)
+includes: [propertyHelper.js]
+---*/
+
+try {
+    var getFunc = function () {
+        return 100;
+    };
+
+    var data = "data";
+    var setFunc = function (value) {
+        data = value;
+    };
+    Object.defineProperty(Function.prototype, "prototype", {
+        get: getFunc,
+        set: setFunc,
+        configurable: true
+    });
+
+    var fun = function () { };
+
+    assert.notSameValue(fun.prototype, 100);
+    assert.sameValue(fun.prototype.toString(), "[object Object]");
+
+    verifyNotEnumerable(fun, "prototype");
+    verifyWritable(fun, "prototype");
+    verifyNotConfigurable(fun, "prototype");
+
+    assert.sameValue(data, "data");
+} finally {
+    delete Function.prototype.prototype;
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-18-s.js b/js/src/tests/test262/language/statements/function/13.2-18-s.js
new file mode 100644
index 0000000000..2c7c625874
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-18-s.js
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-18-s
+description: >
+    StrictMode - writing a property named 'arguments' of function
+    objects is not allowed outside the function
+---*/
+
+        var foo = Function("'use strict';");
+assert.throws(TypeError, function() {
+            foo.arguments = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-19-b-3gs-strict.js b/js/src/tests/test262/language/statements/function/13.2-19-b-3gs-strict.js
new file mode 100644
index 0000000000..5890e2be96
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-19-b-3gs-strict.js
@@ -0,0 +1,19 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-19-b-3gs
+description: >
+    StrictMode - error is thrown when assign a value to the 'caller'
+    property of a function object
+flags: [onlyStrict]
+---*/
+
+function _13_2_19_b_3_gs() {}
+
+assert.throws(TypeError, function() {
+  _13_2_19_b_3_gs.caller = 1;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-19-s.js b/js/src/tests/test262/language/statements/function/13.2-19-s.js
new file mode 100644
index 0000000000..8ba75c3f1c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-19-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-19-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails outside of the function
+---*/
+
+        var foo = Function("'use strict';");
+        
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "arguments", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-2-s-strict.js b/js/src/tests/test262/language/statements/function/13.2-2-s-strict.js
new file mode 100644
index 0000000000..d88c22ad07
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-2-s-strict.js
@@ -0,0 +1,20 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-2-s
+description: >
+    StrictMode - A TypeError is thrown when a strict mode code writes
+    to properties named 'caller' of function instances.
+flags: [onlyStrict]
+---*/
+
+
+assert.throws(TypeError, function() {
+            var foo = function () {
+            }
+            foo.caller = 20;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-20-s.js b/js/src/tests/test262/language/statements/function/13.2-20-s.js
new file mode 100644
index 0000000000..1bc7826598
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-20-s.js
@@ -0,0 +1,15 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-20-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails inside the function
+flags: [noStrict]
+---*/
+
+            var foo = Function("'use strict'; for (var tempIndex in this) {assert.notSameValue(tempIndex, 'arguments', 'tempIndex');}");
+            foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-21-s.js b/js/src/tests/test262/language/statements/function/13.2-21-s.js
new file mode 100644
index 0000000000..847fc8cbd9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-21-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-21-s
+description: >
+    StrictMode - reading a property named 'caller' of function objects
+    is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+assert.throws(TypeError, function() {
+            var temp = foo.caller;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-22-s.js b/js/src/tests/test262/language/statements/function/13.2-22-s.js
new file mode 100644
index 0000000000..179ccd960c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-22-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-22-s
+description: >
+    StrictMode - writing a property named 'caller' of function objects
+    is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+assert.throws(TypeError, function() {
+            foo.caller = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-23-s.js b/js/src/tests/test262/language/statements/function/13.2-23-s.js
new file mode 100644
index 0000000000..3ae25bb462
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-23-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-23-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails outside of the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "caller", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-24-s.js b/js/src/tests/test262/language/statements/function/13.2-24-s.js
new file mode 100644
index 0000000000..c5f4695b08
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-24-s.js
@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-24-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails inside the function
+flags: [noStrict]
+---*/
+
+            function foo () {
+                "use strict"; 
+                for (var tempIndex in this) {
+                    assert.notSameValue(tempIndex, "caller", 'tempIndex');
+                } 
+            }
+
+foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-25-s.js b/js/src/tests/test262/language/statements/function/13.2-25-s.js
new file mode 100644
index 0000000000..44a7343aa6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-25-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-25-s
+description: >
+    StrictMode - reading a property named 'arguments' of function
+    objects is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+assert.throws(TypeError, function() {
+            var temp = foo.arguments;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-26-s.js b/js/src/tests/test262/language/statements/function/13.2-26-s.js
new file mode 100644
index 0000000000..e6ea555aa7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-26-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-26-s
+description: >
+    StrictMode - writing a property named 'arguments' of function
+    objects is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+assert.throws(TypeError, function() {
+            foo.arguments = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-27-s.js b/js/src/tests/test262/language/statements/function/13.2-27-s.js
new file mode 100644
index 0000000000..df1be54766
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-27-s.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-27-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails outside of the function
+flags: [noStrict]
+---*/
+
+        function foo () {"use strict";}
+        
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "arguments", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-28-s.js b/js/src/tests/test262/language/statements/function/13.2-28-s.js
new file mode 100644
index 0000000000..ea9f57b27e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-28-s.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-28-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'arguments' fails inside the function
+flags: [noStrict]
+---*/
+
+            function foo() {
+                "use strict"; 
+                for (var tempIndex in this) {
+                    assert.notSameValue(tempIndex, "arguments", 'tempIndex');
+                } 
+            }
+            foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-3-s.js b/js/src/tests/test262/language/statements/function/13.2-3-s.js
new file mode 100644
index 0000000000..e078018a03
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-3-s.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-3-s
+description: >
+    StrictMode - Writing or reading from a property named 'arguments'
+    of function objects is allowed under both strict and normal modes.
+---*/
+
+        var foo = function () {
+            this.arguments = 12;
+        } 
+        var obj = new foo();
+
+assert.sameValue(obj.arguments, 12, 'obj.arguments');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-30-s.js b/js/src/tests/test262/language/statements/function/13.2-30-s.js
new file mode 100644
index 0000000000..029581a04e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-30-s.js
@@ -0,0 +1,34 @@
+// Copyright (C) 2015 Caitlin Potter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+ description: >
+    Functions created using Function.prototype.bind() do not have own
+    properties "caller" or "arguments", but inherit them from
+    %FunctionPrototype%.
+---*/
+
+function target() {}
+var self = {};
+var bound = target.bind(self);
+
+assert.sameValue(bound.hasOwnProperty('caller'), false, 'Functions created using Function.prototype.bind() do not have own property "caller"');
+assert.sameValue(bound.hasOwnProperty('arguments'), false, 'Functions created using Function.prototype.bind() do not have own property "arguments"');
+
+assert.throws(TypeError, function() {
+  return bound.caller;
+});
+
+assert.throws(TypeError, function() {
+  bound.caller = {};
+});
+
+assert.throws(TypeError, function() {
+  return bound.arguments;
+});
+
+assert.throws(TypeError, function() {
+  bound.arguments = {};
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-4-s-strict.js b/js/src/tests/test262/language/statements/function/13.2-4-s-strict.js
new file mode 100644
index 0000000000..94b7f191a9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-4-s-strict.js
@@ -0,0 +1,20 @@
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-4-s
+description: >
+    StrictMode - A TypeError is thrown when a code in strict mode
+    tries to write to 'arguments' of function instances.
+flags: [onlyStrict]
+---*/
+
+
+assert.throws(TypeError, function() {
+            var foo = function () {
+            }
+            foo.arguments = 20;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-5-s.js b/js/src/tests/test262/language/statements/function/13.2-5-s.js
new file mode 100644
index 0000000000..48733cc5b6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-5-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-5-s
+description: >
+    StrictMode - reading a property named 'caller' of function objects
+    is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        var foo = new Function("'use strict';");
+assert.throws(TypeError, function() {
+            var temp = foo.caller;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-6-s.js b/js/src/tests/test262/language/statements/function/13.2-6-s.js
new file mode 100644
index 0000000000..c688a5f2d2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-6-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-6-s
+description: >
+    StrictMode - writing a property named 'caller' of function objects
+    is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        var foo = new Function("'use strict';");
+assert.throws(TypeError, function() {
+            foo.caller = 41;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-7-s.js b/js/src/tests/test262/language/statements/function/13.2-7-s.js
new file mode 100644
index 0000000000..59f3aecae3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-7-s.js
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-7-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails outside of the function
+flags: [noStrict]
+---*/
+
+        var foo = new Function("'use strict';");
+        
+        for (var tempIndex in foo) {
+            assert.notSameValue(tempIndex, "caller", 'tempIndex');
+        }
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-8-s.js b/js/src/tests/test262/language/statements/function/13.2-8-s.js
new file mode 100644
index 0000000000..d8a8f800a5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-8-s.js
@@ -0,0 +1,15 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-8-s
+description: >
+    StrictMode - enumerating over a function object looking for
+    'caller' fails inside the function
+flags: [noStrict]
+---*/
+
+            var foo = new Function("'use strict'; for (var tempIndex in this) {assert.notSameValue(tempIndex, 'caller', 'tempIndex');}");
+            foo.call(foo);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/13.2-9-s.js b/js/src/tests/test262/language/statements/function/13.2-9-s.js
new file mode 100644
index 0000000000..3aabaaa1a5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/13.2-9-s.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2-9-s
+description: >
+    StrictMode - reading a property named 'caller' of function objects
+    is not allowed outside the function
+flags: [noStrict]
+---*/
+
+        var foo = Function("'use strict';");
+assert.throws(TypeError, function() {
+            var temp = foo.caller;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S10.1.1_A1_T1.js b/js/src/tests/test262/language/statements/function/S10.1.1_A1_T1.js
new file mode 100644
index 0000000000..9b3e996f20
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S10.1.1_A1_T1.js
@@ -0,0 +1,19 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Program functions are defined in source text by a FunctionDeclaration or created dynamically either
+    by using a FunctionExpression or by using the built-in Function object as a constructor
+es5id: 10.1.1_A1_T1
+description: Defining function by a FunctionDeclaration
+---*/
+
+//CHECK#1
+function f1(){
+  return 1;
+}
+if(typeof(f1)!=="function")
+  throw new Test262Error('#1: typeof(f1)!=="function"');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A1_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A1_T1.js
new file mode 100644
index 0000000000..7a938678cb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A1_T1.js
@@ -0,0 +1,74 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The depth of nested function calls reaches 32
+es5id: 13.2.1_A1_T1
+description: Creating function calls 32 elements depth
+---*/
+
+(function(){
+    (function(){
+        (function(){
+            (function(){
+                (function(){
+                    (function(){
+                        (function(){
+                            (function(){
+                                (function(){
+                                    (function(){
+                                        (function(){
+                                            (function(){
+                                                (function(){
+                                                    (function(){
+                                                        (function(){
+                                                            (function(){
+                                                                (function(){
+                                                                    (function(){
+                                                                        (function(){
+                                                                            (function(){
+                                                                                (function(){
+                                                                                    (function(){
+                                                                                        (function(){
+                                                                                            (function(){
+                                                                                                (function(){
+                                                                                                    (function(){
+                                                                                                        (function(){
+                                                                                                            (function(){
+                                                                                                                (function(){
+                                                                                                                    (function(){
+                                                                                                                        (function(){
+                                                                                                                            (function(){})()
+                                                                                                                        })()
+                                                                                                                    })()
+                                                                                                                })()
+                                                                                                            })()
+                                                                                                        })()
+                                                                                                    })()
+                                                                                                })()
+                                                                                            })()
+                                                                                        })()
+                                                                                    })()
+                                                                                })()
+                                                                            })()
+                                                                        })()
+                                                                    })()
+                                                                })()
+                                                            })()
+                                                        })()
+                                                    })()
+                                                })()
+                                            })()
+                                        })()
+                                    })()
+                                })()
+                            })()
+                        })()
+                    })()
+                })()
+            })()
+        })()
+    })()
+})()
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A4_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T1.js
new file mode 100644
index 0000000000..ad94529dc2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T1.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Objects as arguments are passed by reference
+es5id: 13.2.1_A4_T1
+description: >
+    Adding new number property to a function argument within the
+    function body,  where explicit argument is an object defined with
+    "var __obj={}"
+---*/
+
+function __func(__arg){
+    __arg.foo=7;
+}
+
+var __obj={};
+
+__func(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.foo !== 7) {
+	throw new Test262Error('#1: __obj.foo === 7. Actual: __obj.foo ==='+__obj.foo);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A4_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T2.js
new file mode 100644
index 0000000000..e13abef967
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T2.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Objects as arguments are passed by reference
+es5id: 13.2.1_A4_T2
+description: >
+    Adding new string property to a function argument within the
+    function body,  where explicit argument is an object defined with
+    "__obj={}"
+---*/
+
+function __func(__arg){
+    __arg.foo="whiskey gogo";
+}
+
+var __obj={};
+
+ __func(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.foo !== "whiskey gogo") {
+	throw new Test262Error('#1: __obj.foo === "whiskey gogo". Actual: __obj.foo ==='+__obj.foo);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A4_T3.js b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T3.js
new file mode 100644
index 0000000000..706bfcee79
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T3.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Objects as arguments are passed by reference
+es5id: 13.2.1_A4_T3
+description: >
+    Adding new number property to a function argument within the
+    function body,  where array element "arguments[0]" is an object
+    defined with "__obj={}"
+---*/
+
+function __func(){
+    arguments[0]["PI"]=3.14;
+}
+
+var __obj={};
+
+__func(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.PI !== 3.14) {
+	throw new Test262Error('#1: __obj.PI === 3.14. Actual: __obj.PI ==='+__obj.PI);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A4_T4.js b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T4.js
new file mode 100644
index 0000000000..c54588b235
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A4_T4.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Objects as arguments are passed by reference
+es5id: 13.2.1_A4_T4
+description: >
+    Adding new number property to a function argument within the
+    function body,  where array element "arguments[0]" is an object
+    defined with "var __obj={}"
+---*/
+
+function __func(){
+    arguments[0]["E"]=2.74;
+}
+
+var __obj={};
+
+__func(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.E !== 2.74) {
+	throw new Test262Error('#1: __obj.E === 2.74. Actual: __obj.E ==='+__obj.E);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A5_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T1.js
new file mode 100644
index 0000000000..ab95e11349
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T1.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Closures are admitted
+es5id: 13.2.1_A5_T1
+description: Sorting with closure
+---*/
+
+var __arr = [4,3,2,1,4,3,2,1,4,3,2,1];
+//Sort uses closure
+//
+__arr.sort(
+	function(x,y) { 
+		if (x>y){return -1;} 
+		if (x<y){return 1;} 
+		if (x==y){return 0;} 
+	}
+);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__arr.toString() !== [4,4,4,3,3,3,2,2,2,1,1,1].toString()) {
+	throw new Test262Error('#1: __arr.toString() === [4,4,4,3,3,3,2,2,2,1,1,1].toString(). Actual: __arr.toString() ==='+__arr.toString());
+}
+
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js
new file mode 100644
index 0000000000..68dd3fba7e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A5_T2.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Closures are admitted
+es5id: 13.2.1_A5_T2
+description: >
+    Returning a function that approximates the derivative of f  using
+    an interval of dx, which should be appropriately small
+---*/
+
+// Return a function that approximates the derivative of f
+// using an interval of dx, which should be appropriately small.
+function derivative(f, dx) {
+    return function(x) {
+      return (f(x + dx) - f(x)) / dx;
+    };
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) >= 1/65536.0) {
+	throw new Test262Error('#1: Math.abs(derivative(Math.sin, 0.0001)(0) - derivative(Math.sin, 0.0001)(2*Math.PI)) <= 1/65536.0');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A6_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T1.js
new file mode 100644
index 0000000000..6dd6f3df27
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T1.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Primitive types are passed by value
+es5id: 13.2.1_A6_T1
+description: Declaring a function with "function __func(arg1, arg2)"
+flags: [noStrict]
+---*/
+
+function __func(arg1, arg2){
+    arg1++;
+    arg2+="BA";
+};
+
+var x=1;
+y=2;
+var a="AB"
+b="SAM";
+
+__func(x,a);
+__func(y,b);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x!==1 || y!==2 || a!=="AB" || b!=="SAM") {
+	throw new Test262Error('#1: x === 1 and y === 2 and a === "AB" and b === "SAM". Actual: x ==='+x+' and y ==='+y+' and a ==='+a+' and b ==='+b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A6_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T2.js
new file mode 100644
index 0000000000..274fc50f4a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T2.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Primitive types are passed by value
+es5id: 13.2.1_A6_T2
+description: Declaring a function with "__func = function(arg1, arg2)"
+flags: [noStrict]
+---*/
+
+__func = function(arg1, arg2){
+    arg1++;
+    arg2+="BA";
+};
+
+var x=1;
+y=2;
+var a="AB"
+b="SAM";
+
+__func(x,a);
+__func(y,b);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x!==1 || y!==2 || a!=="AB" || b!=="SAM") {
+	throw new Test262Error('#1: x === 1 and y === 2 and a === "AB" and b === "SAM". Actual: x ==='+x+' and y ==='+y+' and a ==='+a+' and b ==='+b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A6_T3.js b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T3.js
new file mode 100644
index 0000000000..51c41e1d2c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T3.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Primitive types are passed by value
+es5id: 13.2.1_A6_T1
+description: Declaring a function with "function __func(arg1, arg2)"
+---*/
+
+var __func, y, b;
+
+function __func(arg1, arg2){
+    arg1++;
+    arg2+="BA";
+};
+
+var x=1;
+y=2;
+var a="AB"
+b="SAM";
+
+__func(x,a);
+__func(y,b);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x!==1 || y!==2 || a!=="AB" || b!=="SAM") {
+	throw new Test262Error('#1: x === 1 and y === 2 and a === "AB" and b === "SAM". Actual: x ==='+x+' and y ==='+y+' and a ==='+a+' and b ==='+b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A6_T4.js b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T4.js
new file mode 100644
index 0000000000..443df08052
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A6_T4.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Primitive types are passed by value
+es5id: 13.2.1_A6_T2
+description: Declaring a function with "__func = function(arg1, arg2)"
+---*/
+
+var __func, y, b;
+
+__func = function(arg1, arg2){
+    arg1++;
+    arg2+="BA";
+};
+
+var x=1;
+y=2;
+var a="AB"
+b="SAM";
+
+__func(x,a);
+__func(y,b);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x!==1 || y!==2 || a!=="AB" || b!=="SAM") {
+	throw new Test262Error('#1: x === 1 and y === 2 and a === "AB" and b === "SAM". Actual: x ==='+x+' and y ==='+y+' and a ==='+a+' and b ==='+b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A7_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T1.js
new file mode 100644
index 0000000000..f891e5921c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T1.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is returned  then Result.value is returned too
+es5id: 13.2.1_A7_T1
+description: Returning null. Declaring a function with "function __func()"
+---*/
+
+function __func(){
+    var x = null;
+    return x;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var x=__func();
+} catch(e){
+    throw new Test262Error('#1: var x=__func() does not lead to throwing exception. Actual: exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A7_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T2.js
new file mode 100644
index 0000000000..9aa2ab4864
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T2.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is returned  then Result.value is returned too
+es5id: 13.2.1_A7_T2
+description: >
+    Returning null. Declaring a function with "var __func = function
+    ()"
+---*/
+
+var __func = function (){
+    var x = null;
+    return x;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var x=__func();
+} catch(e){
+    throw new Test262Error('#1: var x=__func() does not lead to throwing exception. Actual: exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A7_T3.js b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T3.js
new file mode 100644
index 0000000000..dfa88c33e0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T3.js
@@ -0,0 +1,56 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is returned  then Result.value is returned too
+es5id: 13.2.1_A7_T3
+description: Returning number. Declaring a function with "function __func()"
+flags: [noStrict]
+---*/
+
+function __func(){
+    x = 1;
+    return x;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#
+try {
+	x=x;
+	throw new Test262Error('#0: "x=x" lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var __x=__func();
+} catch(e){
+    throw new Test262Error('#1: var __x=__func() does not lead to throwing exception. Actual: exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__x !== 1) {
+	throw new Test262Error('#2: __x === 1. Actual: __x ==='+__x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (x !== 1) {
+	throw new Test262Error('#3: x === 1. Actual: x ==='+x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A7_T4.js b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T4.js
new file mode 100644
index 0000000000..c6a3257a0e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A7_T4.js
@@ -0,0 +1,58 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is returned  then Result.value is returned too
+es5id: 13.2.1_A7_T4
+description: Returning boolean. Declaring a function with "function __func()"
+---*/
+
+function __func(){
+    var x = true;
+    return x;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#
+try {
+	x=x;
+	throw new Test262Error('#0: "x=x" lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var __x=__func()
+} catch(e){
+    throw new Test262Error('#1: var __x=__func() does not lead to throwing exception. Actual: exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!(__x)) {
+	throw new Test262Error('#2: __x === true. Actual: __x ==='+__x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+try {
+	x=x;
+	throw new Test262Error('#3: "x=x" lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A8_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A8_T1.js
new file mode 100644
index 0000000000..9ab0050a36
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A8_T1.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is thrown then Result.value is thrown too
+es5id: 13.2.1_A8_T1
+description: >
+    Throwing an exception within a function body. Declaring function
+    with "function __func()"
+---*/
+
+function __func(){
+    var x = 1;
+    throw ("Catch Me If You Can")
+    return x;
+}
+
+try{
+    var x=__func()
+    throw new Test262Error('#0: var x=__func() lead to throwing exception');
+} catch(e){
+    if (e !== "Catch Me If You Can") {
+    	throw new Test262Error('#1: Exception === "Catch Me If You Can". Actual: exception ==='+e);
+    }
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A8_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A8_T2.js
new file mode 100644
index 0000000000..418376aeb8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A8_T2.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object F is called, the following steps are taken:
+    2. Evaluate F's FunctionBody;
+    if Result.type is thrown then Result.value is thrown too
+es5id: 13.2.1_A8_T2
+description: >
+    Throwing an exception within a function body. Declaring function
+    with "var __func = function (message)"
+---*/
+
+var CATCH_ME_IF_YOU_CAN = true;
+
+var __func = function (message){
+    var x = 1;
+    throw (message)
+    return x;
+}
+
+try{
+    var x=__func(CATCH_ME_IF_YOU_CAN)
+    throw new Test262Error('#0: var x=__func(CATCH_ME_IF_YOU_CAN) lead to throwing exception');
+} catch(e){
+    if (!e) {
+    	throw new Test262Error('#1: Exception === true. Actual: exception ==='+e);
+    }
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T1.js
new file mode 100644
index 0000000000..ed32b92093
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T1.js
@@ -0,0 +1,36 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object is called,
+    the body is evaluated and if evaluation result has type "normal", then "undefined" is returned
+es5id: 13.2.1_A9.1_T1
+description: >
+    Declaring a function with "function __func()" and no "return" in
+    the function body
+---*/
+
+var x;
+
+function __func(){
+    x = true;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== undefined) {
+	throw new Test262Error('#1: __func() === undefined. Actual: __func() ==='+__func());
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!x) {
+	throw new Test262Error('#2: x === true. Actual: x === '+x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T2.js
new file mode 100644
index 0000000000..a1c12ce74a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A9.1_T2.js
@@ -0,0 +1,36 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object is called,
+    the body is evaluated and if evaluation result has type "normal", then "undefined" is returned
+es5id: 13.2.1_A9.1_T2
+description: >
+    Declaring a function with "var __func = function()" and no
+    "return" in the function body
+---*/
+
+var x;
+
+var __func = function(){
+    x = true;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== undefined) {
+	throw new Test262Error('#1: __func() === undefined. Actual: __func() ==='+__func());
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!x) {
+	throw new Test262Error('#2: x === true. Actual: x === '+x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A9_T1.js b/js/src/tests/test262/language/statements/function/S13.2.1_A9_T1.js
new file mode 100644
index 0000000000..c5e84d2641
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A9_T1.js
@@ -0,0 +1,37 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object is called,
+    the body is evaluated and if evaluation result has type "return" its value is not defined, then "undefined" is returned
+es5id: 13.2.1_A9_T1
+description: >
+    Using "return" with no expression. Declaring a function with
+    "function __func()"
+---*/
+
+var x; 
+
+function __func(){
+    x = 1;
+    return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== undefined) {
+	throw new Test262Error('#1: __func() === undefined. Actual: __func() ==='+__func());
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (x!==1) {
+	throw new Test262Error('#2: x === 1. Actual: x === '+x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.1_A9_T2.js b/js/src/tests/test262/language/statements/function/S13.2.1_A9_T2.js
new file mode 100644
index 0000000000..cd7c9b50b7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.1_A9_T2.js
@@ -0,0 +1,37 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Call]] property for a Function object is called,
+    the body is evaluated and if evaluation result has type "return" its value is not defined, then "undefined" is returned
+es5id: 13.2.1_A9_T2
+description: >
+    Using "return" with no expression. Declaring a function with "var
+    __func = function()"
+---*/
+
+var x; 
+
+var __func = function(){
+    x = 1;
+    return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== undefined) {
+	throw new Test262Error('#1: __func() === undefined. Actual: __func() ==='+__func());
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (x!==1) {
+	throw new Test262Error('#2: x === 1. Actual: x === '+x);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A10.js b/js/src/tests/test262/language/statements/function/S13.2.2_A10.js
new file mode 100644
index 0000000000..68bac38cc8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A10.js
@@ -0,0 +1,40 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is possible as long as
+    this.any_Function is declared
+es5id: 13.2.2_A10
+description: Calling a function as a constructor after it has been declared
+---*/
+
+function FACTORY(){
+   this.id = 0;
+   
+   this.func = function (){
+      return 5;
+   }
+   
+   this.id = this.func();
+     
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+} catch (e) {
+	throw new Test262Error('#1: var obj = new FACTORY() does not lead to throwing exception. Actual: Exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (obj.id !== 5) {
+	throw new Test262Error('#2: obj.id === 5. Actual: obj.id ==='+obj.id);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A11.js b/js/src/tests/test262/language/statements/function/S13.2.2_A11.js
new file mode 100644
index 0000000000..2ac9c4345f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A11.js
@@ -0,0 +1,35 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is possible as long as
+    this.any_Function is declared and called
+es5id: 13.2.2_A11
+description: >
+    Calling a function as a constructor after it has been declared
+    with "function func()"
+---*/
+
+function FACTORY(){
+   this.id = 0;
+      
+   this.id = this.func();
+   
+   function func(){
+      return "id_string";
+   }
+     
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+	throw new Test262Error('#1: var obj = new FACTORY() lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A12.js b/js/src/tests/test262/language/statements/function/S13.2.2_A12.js
new file mode 100644
index 0000000000..02f6d6e8c5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A12.js
@@ -0,0 +1,42 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is possible as long as
+    this.any_Function is declared and called
+es5id: 13.2.2_A12
+description: >
+    Calling a function as a constructor after it has been declared
+    with "function func()"
+---*/
+
+function FACTORY(){
+   this.id = 0;
+      
+   this.id = func();
+   
+   function func(){
+      return "id_string";
+   }
+     
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+} catch (e) {
+	throw new Test262Error('#1: var obj = new FACTORY() does not lead to throwing exception. Actual: Exception is '+e);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (obj.id !== "id_string") {
+	throw new Test262Error('#2: obj.id === "id_string". Actual: obj.id ==='+obj.id);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A13.js b/js/src/tests/test262/language/statements/function/S13.2.2_A13.js
new file mode 100644
index 0000000000..7077426b4e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A13.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is inadmissible as long as
+    this.any_Function is declared by eval and called
+es5id: 13.2.2_A13
+description: >
+    Calling a function as a constructor after it has been declared by
+    eval
+---*/
+
+function FACTORY(){
+   this.id = 0;
+      
+   this.id = func();
+   
+   eval("function func(){return \"id_string\";}");
+     
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+	throw new Test262Error('#1: var obj = new FACTORY() lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A14.js b/js/src/tests/test262/language/statements/function/S13.2.2_A14.js
new file mode 100644
index 0000000000..49b017f724
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A14.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is inadmissible as long as
+    this.any_Function is declared by eval and called
+es5id: 13.2.2_A14
+description: >
+    Calling a function as a constructor after it has been declared by
+    eval
+flags: [noStrict]
+---*/
+
+function FACTORY(){
+   this.id = 0;
+
+   eval("function func(){return \"id_string\";}");
+
+   this.id = func();
+
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+} catch (e) {
+	throw new Test262Error('#1: var obj = new FACTORY() does not lead to throwing exception');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A15_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T1.js
new file mode 100644
index 0000000000..c73e673ead
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T1.js
@@ -0,0 +1,48 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called,
+    and the object created in the function is returned, the object (declared with "this" within a function) will be strong and healthy
+es5id: 13.2.2_A15_T1
+description: >
+    Function declared at the end of the program and "obj" property is
+    declared with "var obj = {}"
+---*/
+
+var __obj = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof obj !== "undefined") {
+	throw new Test262Error('#1: typeof obj === "undefined". Actual: typeof obj ==='+typeof obj);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== "A") {
+	throw new Test262Error('#2: __obj.prop === "A". Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.slot.prop !==1) {
+	throw new Test262Error('#3: __obj.slot.prop ===1. Actual: __obj.slot.prop ==='+__obj.slot.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __FACTORY(){
+    this.prop = 1;
+    var obj = {};
+    obj.prop = "A";
+    obj.slot = this;
+    return obj;
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A15_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T2.js
new file mode 100644
index 0000000000..cbf5c775f6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T2.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called,
+    and the object created in the function is returned, the object (declared with "this" within a function) will be strong and healthy
+es5id: 13.2.2_A15_T2
+description: >
+    Function declared at the end of the program and "obj" property is
+    declared with "obj = {}"
+---*/
+
+var obj;
+
+var __obj = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (obj.prop !== "A") {
+	throw new Test262Error('#1: obj.prop === "A". Actual: obj.prop ==='+obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== "A") {
+	throw new Test262Error('#2: __obj.prop === "A". Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.slot.prop !==1) {
+	throw new Test262Error('#3: __obj.slot.prop === 1. Actual: __obj.slot.prop ==='+__obj.slot.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __FACTORY(){
+    this.prop = 1;
+    obj = {};
+    obj.prop = "A";
+    obj.slot = this;
+    return obj;
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A15_T3.js b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T3.js
new file mode 100644
index 0000000000..a58c0a57d5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T3.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called,
+    and the object created in the function is returned, the object (declared with "this" within a function) will be strong and healthy
+es5id: 13.2.2_A15_T3
+description: >
+    Function declared at the end of the program and "obj" property is
+    declared with "var obj = {}"
+---*/
+
+var __FACTORY, __obj;
+
+__FACTORY = function (){
+    this.prop = 1;
+    var obj = {};
+    obj.prop = "A";
+    obj.slot = this;
+    return obj;
+}
+
+__obj = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof obj !== "undefined") {
+	throw new Test262Error('#1: typeof obj === "undefined". Actual: typeof obj ==='+typeof obj);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== "A") {
+	throw new Test262Error('#2: __obj.prop === "A". Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.slot.prop !==1) {
+	throw new Test262Error('#3: __obj.slot.prop ===1. Actual: __obj.slot.prop ==='+__obj.slot.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A15_T4.js b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T4.js
new file mode 100644
index 0000000000..014ced8751
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A15_T4.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called,
+    and the object created in the function is returned, the object (declared with "this" within a function) will be strong and healthy
+es5id: 13.2.2_A15_T4
+description: >
+    Function declared at the end of the program and "obj" property is
+    declared with "obj = {}"
+---*/
+
+var __FACTORY, __obj, obj;
+
+__FACTORY = function(){
+    this.prop = 1;
+    obj = {};
+    obj.prop = "A";
+    obj.slot = this;
+    return obj;
+}
+
+__obj = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (obj.prop !== "A") {
+	throw new Test262Error('#1: obj.prop === "A". Actual: obj.prop ==='+obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== "A") {
+	throw new Test262Error('#2: __obj.prop === "A". Actual: __obj.prop ==='+obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.slot.prop !==1) {
+	throw new Test262Error('#3: __obj.slot.prop ===1. Actual: __obj.slot.prop ==='+obj.slot.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A16_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T1.js
new file mode 100644
index 0000000000..4ffd0fb889
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T1.js
@@ -0,0 +1,38 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionExpression within a new statement is admitted
+es5id: 13.2.2_A16_T1
+description: >
+    Using "is __obj = new function __func(){this.prop=1;}" as
+    FunctionExpression
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#1: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __obj = new function __func(){this.prop=1;};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== 1) {
+	throw new Test262Error('#2: __obj.prop === 1. Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#5: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A16_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T2.js
new file mode 100644
index 0000000000..9473e06431
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T2.js
@@ -0,0 +1,38 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionExpression within a new statement is admitted
+es5id: 13.2.2_A16_T2
+description: >
+    Using "var __obj = new function __func(arg){this.prop=arg;}(5)" as
+    FunctionExpression
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#1: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __obj = new function __func(arg){this.prop=arg;}(5);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== 5) {
+	throw new Test262Error('#2: __obj.prop === 5. Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#3: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A16_T3.js b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T3.js
new file mode 100644
index 0000000000..34db63b436
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A16_T3.js
@@ -0,0 +1,46 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionExpression within a new statement is admitted
+es5id: 13.2.2_A16_T3
+description: >
+    Using "is __obj = new function __func(arg){this.prop=arg; return
+    {feat: ++arg}}(5)" as FunctionExpression
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#1: typeof __func === "undefined"');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __obj = new function __func(arg){this.prop=arg; return {feat: ++arg}}(5);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.prop !== undefined) {
+	throw new Test262Error('#2: __obj.prop === undefined. Actual: __obj.prop ==='+__obj.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.feat !== 6) {
+	throw new Test262Error('#3: __obj.feat === 6. Actual: __obj.feat ==='+__obj.feat);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#4: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A17_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A17_T2.js
new file mode 100644
index 0000000000..e5d0d2e5d2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A17_T2.js
@@ -0,0 +1,72 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionExpression containing "with" statement is admitted
+es5id: 13.2.2_A17_T2
+description: Throwing an exception within "with" statement
+flags: [noStrict]
+---*/
+
+this.p1="alert";
+
+__obj={p1:1,getRight:function(){return "right";}};
+
+getRight=function(){return "napravo";};
+
+try {
+	(function(){
+        with(__obj){
+            p1="w1";
+            getRight=function(){return false;}
+            throw p1;
+        }
+    })();
+} catch (e) {
+	resukt = p1;
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (p1!=="alert") {
+	throw new Test262Error('#1: p1 === "alert". Actual: p1==='+p1);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (getRight()!=="napravo") {
+	throw new Test262Error('#2: getRight() === "napravo". Actual: getRight() === '+getRight());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.p1!=="w1") {
+	throw new Test262Error('#3: __obj.p1 === "w1". Actual: __obj.p1 ==='+__obj.p1);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (__obj.getRight()!==false) {
+	throw new Test262Error('#4: __obj.getRight() === false. Actual: __obj.getRight() === '+__obj.getRight());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (resukt !== "alert") {
+	throw new Test262Error('#5: resukt === "alert". Actual: resukt ==='+resukt);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var resukt;
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A17_T3.js b/js/src/tests/test262/language/statements/function/S13.2.2_A17_T3.js
new file mode 100644
index 0000000000..451355fe6e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A17_T3.js
@@ -0,0 +1,71 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionExpression containing "with" statement is admitted
+es5id: 13.2.2_A17_T3
+description: >
+    In the check 4 we populate field getRight in __obj object since
+    var getRight declaration adds variable to function scope  but
+    getRight in statement resolves within with(__obj) scope and
+    searchs getRight in __obj first
+flags: [noStrict]
+---*/
+
+p1="alert";
+
+this.__obj={p1:1,getRight:function(){return "right";}};
+
+var getRight=function(){return "napravo";};
+
+resukt=(function(){
+    with(__obj){
+        p1="w1";
+        var getRight=function(){return false;};
+        return p1;
+    }
+})();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (p1!=="alert") {
+	throw new Test262Error('#1: p1 === "alert". Actual: p1==='+p1);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (getRight()!=="napravo") {
+	throw new Test262Error('#2: getRight() === "napravo". Actual: getRight()==='+getRight());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__obj.p1!=="w1") {
+	throw new Test262Error('#3: __obj.p1 === "w1". Actual: __obj.p1 ==='+__obj.p1);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (__obj.getRight()!==false) {
+	throw new Test262Error('#4: __obj.getRight() === false. Actual: __obj.getRight()==='+__obj.getRight());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (resukt !== "w1") {
+	throw new Test262Error('#5: resukt === "w1". Actual: resukt ==='+resukt);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var resukt;
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A18_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A18_T1.js
new file mode 100644
index 0000000000..5983be4bf7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A18_T1.js
@@ -0,0 +1,57 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Using arguments object within a "with" Expression that is nested in a
+    function is admitted
+es5id: 13.2.2_A18_T1
+description: "Object is declared with \"var __obj={callee:\"a\"}\""
+flags: [noStrict]
+---*/
+
+var callee=0, b;
+
+var __obj={callee:"a"};
+
+result=(function(){
+    with (arguments){
+        callee=1;
+        b=true;
+    }
+    return arguments;
+})(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (callee !== 0) {
+	throw new Test262Error('#1: callee === 0. Actual: callee ==='+callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.callee !== "a") {
+	throw new Test262Error('#2: __obj.callee === "a". Actual: __obj.callee==='+__obj.callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (result.callee !== 1) {
+	throw new Test262Error('#3: result.callee === 1. Actual: result.callee ==='+result.callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (!(this.b)) {
+	throw new Test262Error('#4: this.b === true. Actual: this.b ==='+this.b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A18_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A18_T2.js
new file mode 100644
index 0000000000..443e0195a5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A18_T2.js
@@ -0,0 +1,60 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Using arguments object within a "with" Expression that is nested in a
+    function is admitted
+es5id: 13.2.2_A18_T2
+description: "Object is declared with \"__obj={callee:\"a\"}\""
+flags: [noStrict]
+---*/
+
+this.callee = 0;
+var b;
+
+__obj={callee:"a"};
+
+function f(){
+    with (arguments){
+        callee=1;
+        b=true;
+        return arguments;
+    }
+};
+
+result=f(__obj);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (callee !== 0) {
+	throw new Test262Error('#1: callee === 0. Actual: callee ==='+callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.callee !== "a") {
+	throw new Test262Error('#2: __obj.callee === "a". Actual: __obj.callee ==='+__obj.callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (result.callee !== 1) {
+	throw new Test262Error('#3: result.callee === 1. Actual: result.callee ==='+result.callee);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (!(this.b)) {
+	throw new Test262Error('#4: this.b === true. Actual: this.b ==='+this.b);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T1.js
new file mode 100644
index 0000000000..8d9fda0448
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T1.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T1
+description: Function is declared in the global scope
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __func= function(){return a;};
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    result = __func();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 1) {
+	throw new Test262Error('#1: result === 1. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T2.js
new file mode 100644
index 0000000000..fc4ac71d42
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T2.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T2
+description: Function is declared in the object scope. Using "with" statement
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    result = (function(){return a;})();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 2) {
+	throw new Test262Error('#1: result === 2. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T3.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T3.js
new file mode 100644
index 0000000000..8467e7da14
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T3.js
@@ -0,0 +1,37 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T3
+description: >
+    Function is declared in the object scope and then an exception is
+    thrown
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2};
+
+try {
+	with (__obj)
+    {
+        var __func = function (){return a;};
+        throw 3;
+    }
+} catch (e) {
+	;
+}
+
+result = __func();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 2) {
+	throw new Test262Error('#1: result === 2. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T4.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T4.js
new file mode 100644
index 0000000000..fa3ca8b7eb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T4.js
@@ -0,0 +1,39 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T4
+description: >
+    Function is declared in the hierarchical object scope and then an
+    exception is thrown
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2,__obj:{a:3}};
+
+try {
+	with (__obj)
+    {
+        with(__obj){
+            var __func = function(){return a;};
+            throw 5;
+        }
+    }
+} catch (e) {
+	;
+}
+
+result = __func();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 3) {
+	throw new Test262Error('#1: result === 3. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T5.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T5.js
new file mode 100644
index 0000000000..09695df97a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T5.js
@@ -0,0 +1,43 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T5
+description: >
+    Function is declared in the object scope, then an exception is
+    thrown and the object is deleted
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    try {
+        
+    	var __func = function()
+        {
+            return a;
+        }
+        throw 3;
+    } catch (e) {
+    	;
+    }
+}
+
+delete __obj;
+
+result = __func();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 2) {
+	throw new Test262Error('#1: result === 2. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T6.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T6.js
new file mode 100644
index 0000000000..b13daa112f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T6.js
@@ -0,0 +1,44 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T6
+description: >
+    Function is declared in the "object->do-while" scope, then the
+    object is deleted and another object with the same name is declared
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    do {
+        var __func = function()
+        {
+            return a;
+        }
+    } while(0);
+}
+
+delete __obj;
+
+var __obj = {a:3};
+
+with (__obj)
+{
+    result = __func();
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (result !== 2) {
+	throw new Test262Error('#1: result === 2. Actual: result ==='+result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T7.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T7.js
new file mode 100644
index 0000000000..1982732b66
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T7.js
@@ -0,0 +1,55 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T7
+description: Function is declared in the object scope as a variable
+flags: [noStrict]
+---*/
+
+var a = 1;
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    var __func = function()
+    {
+        return a;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.hasOwnProperty('__func')) {
+	throw new Test262Error('#1: __obj.hasOwnProperty(\'__func\') === false');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////// /////////////////////////////////////////
+//CHECK#2
+if (!(this.hasOwnProperty('__func'))) {
+	throw new Test262Error('#2: this.hasOwnProperty(\'__func\') === true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__func in __obj) {
+	throw new Test262Error('#3: (__func in __obj) === false');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (this.__func === undefined) {
+	throw new Test262Error('#4: this.__func !== undefined');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A19_T8.js b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T8.js
new file mode 100644
index 0000000000..577fba297f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A19_T8.js
@@ -0,0 +1,75 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function's scope chain is started when it is declared
+es5id: 13.2.2_A19_T8
+description: Function is declared multiply times
+flags: [noStrict]
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#0
+if (typeof __func !== "undefined") {
+	throw new Test262Error('#0: typeof __func === "undefined". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var a = 1, b = "a";
+
+var __obj = {a:2};
+
+with (__obj)
+{
+    while(1){
+        var  __func = function()
+        {
+            return a;
+        };
+        break;
+    }
+}
+
+delete __obj;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== 2) {
+	throw new Test262Error('#1: __func() === 2. Actual: __func() ==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __obj = {a:3,b:"b"};
+
+with (__obj)
+{
+    var __func = function()
+    {
+        return b;
+    }
+}
+
+delete __obj;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func()!=="b") {
+	throw new Test262Error('#2: __func()==="b". Actual: __func()==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+with ({a:99,b:"c"})
+{
+    //////////////////////////////////////////////////////////////////////////////
+    //CHECK#3
+    if (__func() !== "b") {
+    	throw new Test262Error('#3: __func()==="b". Actual: __func()==='+__func());
+    }
+    //
+    //////////////////////////////////////////////////////////////////////////////
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A1_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A1_T1.js
new file mode 100644
index 0000000000..8ef3731517
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A1_T1.js
@@ -0,0 +1,46 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since a function is an object, it might be set to [[Prototype]] property
+    of a new created object through [[Construct]] property
+es5id: 13.2.2_A1_T1
+description: Declaring a function with "function __func()"
+---*/
+
+var __MONSTER="monster";
+var __PREDATOR="predator";
+
+function __PROTO(){};
+
+try{
+    __PROTO.type=__MONSTER;
+}
+catch(e){
+    throw new Test262Error('#0: __PROTO.type=__MONSTER does not lead to throwing exception')
+}
+
+function __FACTORY(){};
+
+__FACTORY.prototype=__PROTO;
+
+var __monster = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!(__PROTO.isPrototypeOf(__monster))) {
+	throw new Test262Error('#1: __PROTO.isPrototypeOf(__monster) must be true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__monster.type !==__MONSTER) {
+	throw new Test262Error('#2: __monster.type ===__MONSTER. Actual: __monster.type ==='+__monster.type);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A1_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A1_T2.js
new file mode 100644
index 0000000000..00296c20ed
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A1_T2.js
@@ -0,0 +1,46 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since a function is an object, it might be set to [[Prototype]] property
+    of a new created object through [[Construct]] property
+es5id: 13.2.2_A1_T2
+description: Declaring a function with "var __PROTO = function()"
+---*/
+
+var __MONSTER="monster";
+var __PREDATOR="predator";
+
+var __PROTO = function(){};
+
+try{
+    __PROTO.type=__MONSTER;
+}
+catch(e){
+    throw new Test262Error('#0: __PROTO.type=__MONSTER does not lead to throwing exception')
+}
+
+var __FACTORY = function(){};
+
+__FACTORY.prototype=__PROTO;
+
+var __monster = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!(__PROTO.isPrototypeOf(__monster))) {
+	throw new Test262Error('#1: __PROTO.isPrototypeOf(__monster) must be true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__monster.type !==__MONSTER) {
+	throw new Test262Error('#2: __monster.type ===__MONSTER. Actual: __monster.type ==='+__monster.type);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A2.js
new file mode 100644
index 0000000000..0ca29945fe
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A2.js
@@ -0,0 +1,43 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since a function is an object, it might be set to [[Prototype]] property of a new created object through [[Construct]] property,
+    but [[call]] property must fail with TypeError error
+es5id: 13.2.2_A2
+description: Trying to [[call]] this function
+---*/
+
+var __PLANT="flower";
+var __ROSE="rose";
+
+function __PROTO(){};
+
+try{
+    __PROTO.type=__PLANT;
+}
+catch(e){
+    throw new Test262Error('#0: __PROTO.type=__PLANT does not lead to throwing exception')
+}
+
+function __FACTORY(){};
+
+__FACTORY.prototype=__PROTO;
+
+var __rose = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    __rose();
+    throw new Test262Error('#1: __rose() lead to throwing exception');
+} catch(e){
+    if (!(e instanceof TypeError)) {
+    	throw new Test262Error('#2: Exception Type is TypeError. Actual: exception ==='+e);
+    }
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A3_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A3_T1.js
new file mode 100644
index 0000000000..9708a4a34a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A3_T1.js
@@ -0,0 +1,36 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    It gets the value of the [[Prototype]] property of the F(Denote it PROTO_VAL).
+    If PROTO_VAL is not an object, sets the [[Prototype]] property of native ECMAScript object just created
+    to the original Object prototype object as described in 15.2.3.1
+es5id: 13.2.2_A3_T1
+description: Declaring a function with "function __FACTORY()"
+---*/
+
+function __FACTORY(){};
+__FACTORY.prototype=1;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __FACTORY.prototype !== 'number') {
+	throw new Test262Error('#1: typeof __FACTORY.prototype === \'number\'. Actual: typeof __FACTORY.prototype ==='+(typeof __FACTORY.prototype));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __device = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!(Object.prototype.isPrototypeOf(__device))) {
+	throw new Test262Error('#2: Object.prototype.isPrototypeOf(__device) === true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A3_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A3_T2.js
new file mode 100644
index 0000000000..922413d1fe
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A3_T2.js
@@ -0,0 +1,36 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    It gets the value of the [[Prototype]] property of the F(Denote it PROTO_VAL).
+    If PROTO_VAL is not an object, sets the [[Prototype]] property of native ECMAScript object just created
+    to the original Object prototype object as described in 15.2.3.1
+es5id: 13.2.2_A3_T2
+description: Declaring a function with "var __FACTORY = function()"
+---*/
+
+var __FACTORY = function(){};
+__FACTORY.prototype=1;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __FACTORY.prototype !== 'number') {
+	throw new Test262Error('#1: typeof __FACTORY.prototype === \'number\'. Actual: typeof __FACTORY.prototype ==='+(typeof __FACTORY.prototype));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __device = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!(Object.prototype.isPrototypeOf(__device))) {
+	throw new Test262Error('#2: Object.prototype.isPrototypeOf(__device) === true');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A4_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A4_T1.js
new file mode 100644
index 0000000000..a891b83d41
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A4_T1.js
@@ -0,0 +1,39 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Gets the value of the [[Prototype]] property of the F(Denote it PROTO_VAL).
+    If PROTO_VAL is an object, sets the [[Prototype]] property of native ECMAScript object just created
+    to the PROTO_VAL
+es5id: 13.2.2_A4_T1
+description: Declaring a function with "function __FACTORY()"
+---*/
+
+var __CUBE="cube";
+
+function __FACTORY(){
+};
+__FACTORY.prototype={ shape:__CUBE, printShape:function(){return this.shape;} };
+
+var __device = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__device.printShape === undefined) {
+	throw new Test262Error('#1: __device.printShape !== undefined. Actual: __device.printShape ==='+__device.printShape);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__device.printShape() !== __CUBE) {
+	throw new Test262Error('#2: __device.printShape() === __CUBE. Actual: __device.printShape() ==='+__device.printShape());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A4_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A4_T2.js
new file mode 100644
index 0000000000..5536c28a43
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A4_T2.js
@@ -0,0 +1,41 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Gets the value of the [[Prototype]] property of the F(Denote it PROTO_VAL).
+    If PROTO_VAL is an object, sets the [[Prototype]] property of native ECMAScript object just created
+    to the PROTO_VAL
+es5id: 13.2.2_A4_T2
+description: Declaring a function with "__FACTORY = function()"
+---*/
+
+var __CUBE, __FACTORY, __device;
+
+__CUBE="cube";
+
+__FACTORY = function(){};
+
+__FACTORY.prototype={ shape:__CUBE, printShape:function(){return this.shape;} };
+
+__device = new __FACTORY();
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__device.printShape === undefined) {
+	throw new Test262Error('#1: __device.printShape !== undefined. Actual: __device.printShape ==='+__device.printShape);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__device.printShape() !== __CUBE) {
+	throw new Test262Error('#2: __device.printShape() === __CUBE. Actual: __device.printShape() ==='+__device.printShape());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A5_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A5_T1.js
new file mode 100644
index 0000000000..3a50043b88
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A5_T1.js
@@ -0,0 +1,83 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing native ECMAScript object just created as the this value and
+    providing the argument list passed into [[Construct]] as the argument values
+es5id: 13.2.2_A5_T1
+description: Declaring a function with "function __FACTORY(arg1, arg2)"
+---*/
+
+var __VOLUME, __RED, __ID, __BOTTOM, __TOP, __LEFT, color, bottom, left, __device;
+
+__VOLUME=8;
+__RED="red";
+__ID=12342;
+__BOTTOM=1.1;
+__TOP=0.1;
+__LEFT=0.5;
+
+
+function __FACTORY(arg1, arg2){
+	this.volume=__VOLUME;
+	color=__RED;
+	this.id=arg1;
+	bottom=arg2;
+	this.top=arguments[2];
+	left=arguments[3];
+};
+
+__device = new __FACTORY(__ID, __BOTTOM, __TOP, __LEFT);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__device.color !== undefined) {
+	throw new Test262Error('#1: __device.color === undefined. Actual: __device.color ==='+__device.color);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__device.volume !== __VOLUME) {
+	throw new Test262Error('#2: __device.volume === __VOLUME. Actual: __device.volume ==='+__device.volume);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__device.bottom !== undefined) {
+	throw new Test262Error('#3: __device.bottom === undefined. Actual: __device.bottom ==='+__device.bottom);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (__device.id !== __ID) {
+	throw new Test262Error('#4: __device.id === __ID. Actual: __device.id ==='+__device.id);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (__device.left !== undefined) {
+	throw new Test262Error('#5: __device.left === undefined. Actual: __device.left ==='+__device.left);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#6
+if (__device.top !== __TOP) {
+	throw new Test262Error('#6: __device.top === __TOP. Actual: __device.top ==='+__device.top);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A5_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A5_T2.js
new file mode 100644
index 0000000000..9b2e46107d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A5_T2.js
@@ -0,0 +1,83 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing native ECMAScript object just created as the this value and
+    providing the argument list passed into [[Construct]] as the argument values
+es5id: 13.2.2_A5_T2
+description: Declaring a function with "__FACTORY = function(arg1, arg2)"
+---*/
+
+var __VOLUME, __RED, __ID, __BOTTOM, __TOP, __LEFT, __FACTORY, color, bottom, left, __device;
+
+__VOLUME=8;
+__RED="red";
+__ID=12342;
+__BOTTOM=1.1;
+__TOP=0.1;
+__LEFT=0.5;
+
+
+__FACTORY = function(arg1, arg2){
+	this.volume=__VOLUME;
+	color=__RED;
+	this.id=arg1;
+	bottom=arg2;
+	this.top=arguments[2];
+	left=arguments[3];
+};
+
+__device = new __FACTORY(__ID, __BOTTOM, __TOP, __LEFT);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__device.color !== undefined) {
+	throw new Test262Error('#1: __device.color === undefined. Actual: __device.color ==='+__device.color);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__device.volume !== __VOLUME) {
+	throw new Test262Error('#2: __device.volume === __VOLUME. Actual: __device.volume ==='+__device.volume);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__device.bottom !== undefined) {
+	throw new Test262Error('#3: __device.bottom === undefined. Actual: __device.bottom ==='+__device.bottom);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (__device.id !== __ID) {
+	throw new Test262Error('#4: __device.id === __ID. Actual: __device.id ==='+__device.id);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (__device.left !== undefined) {
+	throw new Test262Error('#5: __device.left === undefined. Actual: __device.left ==='+__device.left);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#6
+if (__device.top !== __TOP) {
+	throw new Test262Error('#6: __device.top === __TOP. Actual: __device.top ==='+__device.top);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A6_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A6_T1.js
new file mode 100644
index 0000000000..f5b29daaeb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A6_T1.js
@@ -0,0 +1,44 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is not Object then return passed as this into [[Call]] object
+es5id: 13.2.2_A6_T1
+description: Declaring a function with "__func = function(arg)"
+---*/
+
+var __FOO, __BAR, __func, __obj;
+
+__FOO="fooValue";
+__BAR="barValue";
+
+__func = function(arg){
+	this.foo=arg;
+    return 0;
+	this.bar=arguments[1];
+};
+
+__obj = new __func(__FOO, __BAR);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.foo!==__FOO) {
+	throw new Test262Error('#1: __obj.foo === __FOO. Actual: __obj.foo==='+__obj.foo);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.bar!==undefined) {
+	throw new Test262Error('#2: __obj.bar === undefined. Actual: __obj.bar==='+__obj.bar);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A6_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A6_T2.js
new file mode 100644
index 0000000000..4ebe5d7c8a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A6_T2.js
@@ -0,0 +1,42 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is not Object then return passed as this into [[Call]] object
+es5id: 13.2.2_A6_T2
+description: Declaring a function with "function __func (arg)"
+---*/
+
+var __FOO="fooValue";
+var __BAR="barValue";
+
+function __func (arg){
+	this.foo=arg;
+    return true;
+	this.bar=arguments[1];
+};
+
+var __obj = new __func(__FOO, __BAR);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj.foo!==__FOO) {
+	throw new Test262Error('#1: __obj.foo === __FOO. Actual: __obj.foo==='+__obj.foo);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj.bar!==undefined) {
+	throw new Test262Error('#2: __obj.bar === undefined. Actual: __obj.bar==='+__obj.bar);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A7_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A7_T1.js
new file mode 100644
index 0000000000..8133b46288
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A7_T1.js
@@ -0,0 +1,43 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is an Object then return this just as obtained object
+es5id: 13.2.2_A7_T1
+description: Declaring a function with "as __func = function(arg)"
+---*/
+
+var __FRST="one";
+var __SCND="two";
+
+function __func (arg1, arg2){
+	this.first=arg1;
+	var __obj={second:arg2};
+    return __obj;
+	
+};
+
+var __obj__ = new __func(__FRST, __SCND);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj__.first !== undefined) {
+	throw new Test262Error('#1: __obj__.first === undefined. Actual: __obj__.first==='+__obj__.first);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj__.second !== __SCND) {
+	throw new Test262Error('#2: __obj__.second === __SCND. Actual: __obj__.second ==='+__obj__.second);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A7_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A7_T2.js
new file mode 100644
index 0000000000..5c5a629675
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A7_T2.js
@@ -0,0 +1,45 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is an Object then return this just as obtained object
+es5id: 13.2.2_A7_T2
+description: Declaring a "function as function __func (arg)"
+---*/
+
+var __FRST, __SCND, __func, __obj__;
+
+__FRST="one";
+__SCND="two";
+
+__func = function(arg1, arg2){
+	this.first=arg1;
+	var __obj={second:arg2};
+    return __obj;
+	
+};
+
+__obj__ = new __func(__FRST, __SCND);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__obj__.first !== undefined) {
+	throw new Test262Error('#1: __obj__.first === undefined. Actual: __obj__.first==='+__obj__.first);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__obj__.second !== __SCND) {
+	throw new Test262Error('#2: __obj__.second === __SCND. Actual: __obj__.second ==='+__obj__.second);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A8_T1.js b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T1.js
new file mode 100644
index 0000000000..25fe3e8615
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T1.js
@@ -0,0 +1,56 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is an Function then return this just as obtained function
+es5id: 13.2.2_A8_T1
+description: >
+    Creating a function whose prototype contains "return" followed by
+    declaration of another function
+---*/
+
+var __FRST="one";
+var __SCND="two";
+
+var __func = function(arg1, arg2){
+	this.first=arg1;
+	
+	__gunc.prop=arg2;
+    return __gunc;
+    // function declaration
+    function __gunc(arg){return ++arg};
+	
+};
+
+var __instance = new __func(__FRST, __SCND);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__instance.first !== undefined) {
+	throw new Test262Error('#1: __instance.first === undefined. Actual: __instance.first ==='+__instance.first);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__instance.prop!==__SCND) {
+	throw new Test262Error('#2: __instance.prop === __SCND. Actual: __instance.prop ==='+__instance.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__instance(1)!== 2) {
+	throw new Test262Error('#2: __instance(1)=== 2. Actual: __instance(1) ==='+__instance(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A8_T2.js b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T2.js
new file mode 100644
index 0000000000..fe7c7069b0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T2.js
@@ -0,0 +1,54 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is an Function then return this just as obtained function
+es5id: 13.2.2_A8_T2
+description: >
+    Creating a function whose prototype contains declaration of
+    another function declared as a variable
+---*/
+
+var __FRST="one";
+var __SCND="two";
+
+var __func = function(arg1, arg2){
+	this.first=arg1;
+	var __gunc = function(arg){return arg+="BA"};
+	__gunc.prop=arg2;
+    return __gunc;
+	
+};
+
+var __instance = new __func(__FRST, __SCND);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__instance.first !== undefined) {
+	throw new Test262Error('#1: __instance.first === undefined. Actual: __instance.first ==='+__instance.first);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__instance.prop!==__SCND) {
+	throw new Test262Error('#2: __instance.prop === __SCND. Actual: __instance.prop ==='+__instance.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__instance("SAM")!== "SAMBA") {
+	throw new Test262Error('#2: __instance("SAM") === "SAMBA". Actual: __instance("SAM") ==='+__instance("SAM"));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A8_T3.js b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T3.js
new file mode 100644
index 0000000000..dbe654fa37
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A8_T3.js
@@ -0,0 +1,54 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When the [[Construct]] property for a Function object F is called:
+    A new native ECMAScript object is created.
+    Invoke the [[Call]] property of F, providing just created native ECMAScript object as the this value and providing the argument
+    list passed into [[Construct]] as the argument values.
+    If Type( [[Call]] returned) is an Function then return this just as obtained function
+es5id: 13.2.2_A8_T3
+description: >
+    Creating a function whose prototype contains declaration of
+    another function defined by using Function.call method
+---*/
+
+var __FRST="one";
+var __SCND="two";
+
+var __func = function(arg1, arg2){
+	this.first=arg1;
+	var __gunc = Function.call(this,"arg","return ++arg;");
+	__gunc.prop=arg2;
+    return __gunc;
+	
+};
+
+var __instance = new __func(__FRST, __SCND);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__instance.first !== undefined) {
+	throw new Test262Error('#1: __instance.first === undefined. Actual: __instance.first ==='+__instance.first);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__instance.prop!==__SCND) {
+	throw new Test262Error('#2: __instance.prop === __SCND. Actual: __instance.prop ==='+__instance.prop);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__instance(1)!== 2) {
+	throw new Test262Error('#2: __instance(1)=== 2. Actual: __instance(1) ==='+__instance(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2.2_A9.js b/js/src/tests/test262/language/statements/function/S13.2.2_A9.js
new file mode 100644
index 0000000000..ac0c051aa3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2.2_A9.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Calling a function as a constructor is inadmissible as long as
+    this.any_Function is called before it is declared
+es5id: 13.2.2_A9
+description: Calling a function as a constructor
+---*/
+
+function FACTORY(){
+   this.id = 0;
+   
+   this.id = this.func();
+   
+   this.func = function (){
+      return 5;
+   }
+  
+}
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try {
+	var obj = new FACTORY();
+	throw new Test262Error('#1: var obj = new FACTORY() lead to throwing exception');
+} catch (e) {
+    if (e instanceof Test262Error) throw e;
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A1_T1.js b/js/src/tests/test262/language/statements/function/S13.2_A1_T1.js
new file mode 100644
index 0000000000..45ff8a4857
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A1_T1.js
@@ -0,0 +1,20 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: A "prototype" property is automatically created for every function
+es5id: 13.2_A1_T1
+description: Using "function __func(){}" as a FunctionDeclaration
+---*/
+
+function __func(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func.prototype === undefined) {
+	throw new Test262Error('#1: __func.prototype !== undefined');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A1_T2.js b/js/src/tests/test262/language/statements/function/S13.2_A1_T2.js
new file mode 100644
index 0000000000..e180e4c15e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A1_T2.js
@@ -0,0 +1,20 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: A "prototype" property is automatically created for every function
+es5id: 13.2_A1_T2
+description: Using "var __func = function(){}" as a FunctionDeclaration
+---*/
+
+var __func = function(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func.prototype === undefined) {
+	throw new Test262Error('#1: __func.prototype !== undefined');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A2_T1.js b/js/src/tests/test262/language/statements/function/S13.2_A2_T1.js
new file mode 100644
index 0000000000..1a9c6b46ea
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A2_T1.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Nested function are admitted
+es5id: 13.2_A2_T1
+description: Nesting level is two
+---*/
+
+var __JEDI="jedi";
+
+function __FUNC(){
+    function __GUNC(){
+        return arguments[0];
+    };
+    
+    return __GUNC;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__FUNC()(__JEDI) !== __JEDI) {
+	throw new Test262Error('#1: __FUNC()(__JEDI) === __JEDI. Actual: __FUNC()(__JEDI) ==='+__FUNC()(__JEDI));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A2_T2.js b/js/src/tests/test262/language/statements/function/S13.2_A2_T2.js
new file mode 100644
index 0000000000..f985522156
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A2_T2.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Nested function are admitted
+es5id: 13.2_A2_T2
+description: Nesting level is three
+---*/
+
+var __ROBOT="C3PO";
+
+function __FUNC(){
+    function __GUNC(){
+        return arguments[0];
+    };
+    function __HUNC(){
+        return __GUNC;
+    };
+    return __HUNC;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__FUNC()()(__ROBOT) !== __ROBOT) {
+	throw new Test262Error('#1: __FUNC()()(__ROBOT) === __ROBOT. Actual: __FUNC()()(__ROBOT) ==='+__FUNC()()(__ROBOT));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A3.js b/js/src/tests/test262/language/statements/function/S13.2_A3.js
new file mode 100644
index 0000000000..28b526ca4d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A3.js
@@ -0,0 +1,34 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When Function object(F) is constructed the length property of F is set to
+    the number of formal properties specified in FormalParameterList
+es5id: 13.2_A3
+description: >
+    Creating functions with various FormalParameterList and checking
+    their lengths
+---*/
+
+function __func(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func.length !== 0) {
+	throw new Test262Error('#1: __func.length === 0. Actual: __func.length ==='+__func.length);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __gunc(a,b,c){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__gunc.length !== 3) {
+	throw new Test262Error('#2: __gunc.length === 3. Actual: __gunc.length ==='+__gunc.length);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A4_T1.js b/js/src/tests/test262/language/statements/function/S13.2_A4_T1.js
new file mode 100644
index 0000000000..81ecd23d1a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A4_T1.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When Function object(F) is constructed the following steps from 9 to 11 take place
+    9.Create a new object as would be constructed by the expression new Object().
+    10. Set the constructor property of Result(9) to F. This property is given attributes { DontEnum }.
+    11. Set the "prototype" property of F to Result(9).
+es5id: 13.2_A4_T1
+description: >
+    Checking prototype, prototype.constructor properties and
+    {DontEnum} property of a constructor.  Using "function __func(){}"
+    as a FunctionDeclaration
+---*/
+
+function __func(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func.prototype !== 'object') {
+	throw new Test262Error('#1: typeof __func.prototype === \'object\'. Actual: typeof __gunc.prototype ==='+typeof __gunc.prototype);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func.prototype.constructor !== __func) {
+	throw new Test262Error('#2: __func.prototype.constructor === __func. Actual: __gunc.prototype.constructor ==='+__gunc.prototype.constructor);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __constructor_was__enumed;
+
+for (__prop in __func.prototype){
+    if (__prop === 'constructor')
+        __constructor_was__enumed = true;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__constructor_was__enumed) {
+	throw new Test262Error('#3: __constructor_was__enumed === false. Actual: __constructor_was__enumed ==='+__constructor_was__enumed);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A4_T2.js b/js/src/tests/test262/language/statements/function/S13.2_A4_T2.js
new file mode 100644
index 0000000000..7e7d5d68c5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A4_T2.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When Function object(F) is constructed the following steps from 9 to 11 take place
+    9.Create a new object as would be constructed by the expression new Object().
+    10. Set the constructor property of Result(9) to F. This property is given attributes { DontEnum }.
+    11. Set the "prototype" property of F to Result(9).
+es5id: 13.2_A4_T2
+description: >
+    Checking prototype, prototype.constructor properties and
+    {DontEnum} property of a constructor.  Using "var __gunc =
+    function(){}" as a FunctionDeclaration
+---*/
+
+var __gunc = function(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __gunc.prototype !== 'object') {
+	throw new Test262Error('#1: typeof __gunc.prototype === \'object\'. Actual: typeof __gunc.prototype ==='+typeof __gunc.prototype);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__gunc.prototype.constructor !== __gunc) {
+	throw new Test262Error('#2: __gunc.prototype.constructor === __gunc. Actual: __gunc.prototype.constructor ==='+__gunc.prototype.constructor);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __constructor_was__enumed;
+
+for (__prop in __gunc.prototype){
+    if (__prop === 'constructor')
+        __constructor_was__enumed = true;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__constructor_was__enumed) {
+	throw new Test262Error('#3: __constructor_was__enumed === false. Actual: __constructor_was__enumed ==='+__constructor_was__enumed);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A5.js b/js/src/tests/test262/language/statements/function/S13.2_A5.js
new file mode 100644
index 0000000000..d2b096119a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A5.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    When Function object(F) is constructed
+    the [[Prototype]] property of F is set to the original Function prototype object as specified in 15.3.3.1
+es5id: 13.2_A5
+description: Function.prototype.isPrototypeOf() is used
+---*/
+
+function __func(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!(Function.prototype.isPrototypeOf(__func))) {
+	throw new Test262Error('#1: Function.prototype.isPrototypeOf(__func)');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+
+var __gunc = function(){};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!(Function.prototype.isPrototypeOf(__gunc))) {
+	throw new Test262Error('#1: Function.prototype.isPrototypeOf(__gunc)');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A6_T1-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A6_T1-strict.js
new file mode 100644
index 0000000000..d065c8ed05
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A6_T1-strict.js
@@ -0,0 +1,13 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A6_T1
+description: check if "caller" poisoning poisons  getOwnPropertyDescriptor too
+flags: [onlyStrict]
+---*/
+
+Object.getOwnPropertyDescriptor(function(){}, 'caller');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A6_T2-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A6_T2-strict.js
new file mode 100644
index 0000000000..b4fa421bf7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A6_T2-strict.js
@@ -0,0 +1,15 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A6_T2
+description: >
+    check if "arguments" poisoning poisons  getOwnPropertyDescriptor
+    too
+flags: [onlyStrict]
+---*/
+
+Object.getOwnPropertyDescriptor(function(){}, 'arguments');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A7_T1-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A7_T1-strict.js
new file mode 100644
index 0000000000..049044d2b3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A7_T1-strict.js
@@ -0,0 +1,13 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A7_T1
+description: check if "caller" poisoning poisons  hasOwnProperty too
+flags: [onlyStrict]
+---*/
+
+(function(){}).hasOwnProperty('caller');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A7_T2-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A7_T2-strict.js
new file mode 100644
index 0000000000..3e8f46bfb3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A7_T2-strict.js
@@ -0,0 +1,13 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A7_T2
+description: check if "arguments" poisoning poisons  hasOwnProperty too
+flags: [onlyStrict]
+---*/
+
+(function(){}).hasOwnProperty('arguments');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A8_T1-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A8_T1-strict.js
new file mode 100644
index 0000000000..5e3647ff91
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A8_T1-strict.js
@@ -0,0 +1,13 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A8_T1
+description: check if "caller" poisoning poisons  "in" too
+flags: [onlyStrict]
+---*/
+
+'caller' in function() {};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13.2_A8_T2-strict.js b/js/src/tests/test262/language/statements/function/S13.2_A8_T2-strict.js
new file mode 100644
index 0000000000..ec8bde2745
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13.2_A8_T2-strict.js
@@ -0,0 +1,13 @@
+'use strict';
+// Copyright 2011 Google Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.2_A8_T2
+description: check if "arguments" poisoning poisons  "in" too
+flags: [onlyStrict]
+---*/
+
+'arguments' in function() {};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A1.js b/js/src/tests/test262/language/statements/function/S13_A1.js
new file mode 100644
index 0000000000..647a1e47fa
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A1.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    "x=function y(){}" statement does not store a reference to the new
+    function in the varaible y(Identifier)
+es5id: 13_A1
+description: Checking the type of y
+---*/
+
+var __func = function __exp__func(){return 0;};
+
+////////////////////////////////////////////////
+// //////////////////////////////
+//CHECK#1
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __exp__func !== "undefined"){
+    throw new Test262Error('#2: typeof __exp__func === "undefined". Actual: typeof __exp__func ==='+typeof __exp__func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A10.js b/js/src/tests/test262/language/statements/function/S13_A10.js
new file mode 100644
index 0000000000..29a737ded2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A10.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function is a data
+es5id: 13_A10
+description: Using function as a property of an object
+---*/
+
+function __ziggy__func(){return "ziggy stardust"}
+
+var __music_box={};
+
+__music_box.ziggy = __ziggy__func;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#
+if (typeof __music_box.ziggy !== "function") {
+	throw new Test262Error('#1: typeof __music_box.ziggy === "function". Actual: typeof __music_box.ziggy ==='+typeof __music_box.ziggy);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__music_box.ziggy() !== "ziggy stardust") {
+	throw new Test262Error('#2: __music_box.ziggy() === "ziggy stardust". Actual: __music_box.ziggy() ==='+__music_box.ziggy());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A11_T1.js b/js/src/tests/test262/language/statements/function/S13_A11_T1.js
new file mode 100644
index 0000000000..89d46919d9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A11_T1.js
@@ -0,0 +1,23 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since arguments property has attribute { DontDelete }, only its elements
+    can be deleted
+es5id: 13_A11_T1
+description: Returning result of "delete arguments"
+flags: [noStrict]
+---*/
+
+function __func(){ return delete arguments;}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func("A","B",1,2)) {
+	throw new Test262Error('#1: arguments property has attribute { DontDelete }');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A11_T2.js b/js/src/tests/test262/language/statements/function/S13_A11_T2.js
new file mode 100644
index 0000000000..37fd1c0241
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A11_T2.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since arguments property has attribute { DontDelete }, only its elements
+    can be deleted
+es5id: 13_A11_T2
+description: >
+    Checking if deleting the arguments property fails and then
+    returning it
+flags: [noStrict]
+---*/
+
+function __func(){ 
+    delete arguments;
+    return arguments;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func("A","B",1,2) !== "object") {
+	throw new Test262Error('#1: arguments property has attribute { DontDelete }');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A11_T3.js b/js/src/tests/test262/language/statements/function/S13_A11_T3.js
new file mode 100644
index 0000000000..6612f1e31f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A11_T3.js
@@ -0,0 +1,27 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since arguments property has attribute { DontDelete }, only its elements
+    can be deleted
+es5id: 13_A11_T3
+description: Deleting arguments[i] and returning result of the operation
+---*/
+
+function __func(){
+    var was_del=false;
+    for (var i=0; i < arguments.length; i++)
+       was_del= was_del || delete arguments[i];
+    return was_del;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!__func("A","B",1,2)) {
+	throw new Test262Error('#1: Since arguments property has attribute { DontDelete } elements of arguments can be deleted');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A11_T4.js b/js/src/tests/test262/language/statements/function/S13_A11_T4.js
new file mode 100644
index 0000000000..3533b634f3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A11_T4.js
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Since arguments property has attribute { DontDelete }, only its elements
+    can be deleted
+es5id: 13_A11_T4
+description: Deleting arguments[i] and checking the type of arguments[i]
+---*/
+
+function __func(){
+    var is_undef=true;
+    for (var i=0; i < arguments.length; i++)
+    {
+        delete arguments[i];
+        is_undef= is_undef && (typeof arguments[i] === "undefined");
+    };       
+    return is_undef;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!__func("A","B",1,2)) {
+	throw new Test262Error('#1: Since arguments property has attribute { DontDelete }, but elements of arguments can be deleted');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A12_T1.js b/js/src/tests/test262/language/statements/function/S13_A12_T1.js
new file mode 100644
index 0000000000..05ae3e7504
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A12_T1.js
@@ -0,0 +1,35 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function declarations in global or function scope are {DontDelete}
+es5id: 13_A12_T1
+description: >
+    Checking if deleting a function that is declared in global scope
+    fails
+flags: [noStrict]
+---*/
+
+ALIVE="Letov is alive"
+
+function __func(){
+    return ALIVE;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (delete __func) {
+	throw new Test262Error('#1: delete __func returning false');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func() !== ALIVE) {
+	throw new Test262Error('#2: __func() === ALIVE. Actual: __func() ==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A12_T2.js b/js/src/tests/test262/language/statements/function/S13_A12_T2.js
new file mode 100644
index 0000000000..4bda588cab
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A12_T2.js
@@ -0,0 +1,40 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function declarations in global or function scope are {DontDelete}
+es5id: 13_A12_T2
+description: >
+    Checking if deleting a function that is declared in function scope
+    fails
+flags: [noStrict]
+---*/
+
+ALIVE="Letov is alive"
+
+function __cont(){
+
+    function __func(){
+        return ALIVE;
+    };
+    
+    //////////////////////////////////////////////////////////////////////////////
+    //CHECK#1
+    if (delete __func) {
+    	throw new Test262Error('#1: delete __func returning false');
+    }
+    //
+    //////////////////////////////////////////////////////////////////////////////
+    
+    //////////////////////////////////////////////////////////////////////////////
+    //CHECK#2
+    if (__func() !== ALIVE) {
+    	throw new Test262Error('#2: __func() === ALIVE. Actual: __func() ==='+__func());
+    }
+    //
+    //////////////////////////////////////////////////////////////////////////////
+};
+
+__cont();
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A13_T1.js b/js/src/tests/test262/language/statements/function/S13_A13_T1.js
new file mode 100644
index 0000000000..7065a7324a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A13_T1.js
@@ -0,0 +1,26 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Deleting arguments[i] leads to breaking the connection to local reference
+es5id: 13_A13_T1
+description: Deleting arguments[i]
+---*/
+
+function __func(__arg){
+  delete arguments[0];
+  if (arguments[0] !== undefined) {
+    throw new Test262Error('#1.1: arguments[0] === undefined');
+  }
+  return __arg;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(1) !== 1) {
+	throw new Test262Error('#1.2: __func(1) === 1. Actual: __func(1) ==='+__func(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A13_T2.js b/js/src/tests/test262/language/statements/function/S13_A13_T2.js
new file mode 100644
index 0000000000..08cc30cbf1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A13_T2.js
@@ -0,0 +1,27 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Deleting arguments[i] leads to breaking the connection to local reference
+es5id: 13_A13_T2
+description: Changing arguments value and then deleting the argument
+---*/
+
+function __func(__arg){
+  __arg = 2;
+  delete arguments[0];
+  if (arguments[0] !== undefined) {
+    throw new Test262Error('#1.1: arguments[0] === undefined');
+  }
+  return __arg;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(1) !== 2) {
+	throw new Test262Error('#1.2: __func(1) === 2. Actual: __func(1) ==='+__func(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A13_T3.js b/js/src/tests/test262/language/statements/function/S13_A13_T3.js
new file mode 100644
index 0000000000..47f0e2a515
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A13_T3.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Deleting arguments[i] leads to breaking the connection to local reference
+es5id: 13_A13_T3
+description: >
+    Changing argument value, deleting the argument and then defining a
+    new value for arguments[i]
+---*/
+
+function __func(__arg){
+  __arg = 2;
+  delete arguments[0];
+  if (arguments[0] !== undefined) {
+    throw new Test262Error('#1.1: arguments[0] === undefined');
+  }
+  arguments[0] = "A";
+  if (arguments[0] !== "A") {
+    throw new Test262Error('#1.2: arguments[0] === "A"');
+  }
+  return __arg;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(1) !== 2) {
+	throw new Test262Error('#1.3: __func(1) === 2. Actual: __func(1) ==='+__func(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A14_T1.js b/js/src/tests/test262/language/statements/function/S13_A14_T1.js
new file mode 100644
index 0000000000..e64bbcc44a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A14_T1.js
@@ -0,0 +1,21 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Unicode symbols in function name are allowed
+es5id: 13_A14
+description: Defining function name with unicode symbols
+flags: [noStrict]
+---*/
+
+eval("function __func\u0041(__arg){return __arg;};");
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __funcA !== "function") {
+	throw new Test262Error('#1: unicode symbols in function name are allowed');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A15_T1.js b/js/src/tests/test262/language/statements/function/S13_A15_T1.js
new file mode 100644
index 0000000000..c3ae2781c8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A15_T1.js
@@ -0,0 +1,23 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "''arguments'' variable overrides ActivationObject.arguments"
+es5id: 13_A15_T1
+description: Declaring a function with "__func(arguments)"
+flags: [noStrict]
+---*/
+
+function __func(arguments){
+    return arguments;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(42) !== 42) {
+	throw new Test262Error('#1: "arguments" variable overrides ActivationObject.arguments');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A15_T2.js b/js/src/tests/test262/language/statements/function/S13_A15_T2.js
new file mode 100644
index 0000000000..8d17396bc3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A15_T2.js
@@ -0,0 +1,26 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "''arguments'' variable overrides ActivationObject.arguments"
+es5id: 13_A15_T2
+description: Overriding arguments within functions body
+flags: [noStrict]
+---*/
+
+THE_ANSWER="Answer to Life, the Universe, and Everything";
+
+function __func(){
+    var arguments = THE_ANSWER;
+    return arguments;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(42,42,42) !== THE_ANSWER) {
+	throw new Test262Error('#1:  "arguments" variable overrides ActivationObject.arguments');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A15_T3.js b/js/src/tests/test262/language/statements/function/S13_A15_T3.js
new file mode 100644
index 0000000000..902302ae2c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A15_T3.js
@@ -0,0 +1,36 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "''arguments'' variable overrides ActivationObject.arguments"
+es5id: 13_A15_T3
+description: Declaring a variable named with "arguments" without a function
+flags: [noStrict]
+---*/
+
+THE_ANSWER="Answer to Life, the Universe, and Everything";
+
+var arguments = THE_ANSWER;
+
+function __func(arguments){
+    return arguments;
+    
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func() !== "undefined") {
+	throw new Test262Error('#1: typeof __func() === "undefined". Actual: typeof __func() ==='+typeof __func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func("The Ultimate Question") !== "The Ultimate Question") {
+	throw new Test262Error('#2: __func("The Ultimate Question") === "The Ultimate Question". Actual: __func("The Ultimate Question")==='+__func("The Ultimate Question"));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A15_T4.js b/js/src/tests/test262/language/statements/function/S13_A15_T4.js
new file mode 100644
index 0000000000..c58bddc29d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A15_T4.js
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "''arguments'' variable overrides ActivationObject.arguments"
+es5id: 13_A15_T4
+description: >
+    Declaring a variable named with "arguments" and following a
+    "return" statement within a function body
+flags: [noStrict]
+---*/
+
+THE_ANSWER="Answer to Life, the Universe, and Everything";
+
+function __func(){
+    return typeof arguments;
+    var arguments = THE_ANSWER;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func(42,42,42) !== "object") {
+	throw new Test262Error('#1: __func(42,42,42) === "object". Actual: __func(42,42,42)==='+__func(42,42,42));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A15_T5.js b/js/src/tests/test262/language/statements/function/S13_A15_T5.js
new file mode 100644
index 0000000000..ad2e15b54e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A15_T5.js
@@ -0,0 +1,35 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "''arguments'' variable overrides ActivationObject.arguments"
+es5id: 13_A15_T5
+description: Creating a variable named with "arguments" without a function
+flags: [noStrict]
+---*/
+
+THE_ANSWER="Answer to Life, the Universe, and Everything";
+
+var arguments = THE_ANSWER;
+
+function __func(){
+    return arguments;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if ( __func() === THE_ANSWER) {
+	throw new Test262Error('#1: __func() !== THE_ANSWER');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func("The Ultimate Question") === "The Ultimate Question") {
+	throw new Test262Error('#2: __func("The Ultimate Question") !== "The Ultimate Question"');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A17_T1.js b/js/src/tests/test262/language/statements/function/S13_A17_T1.js
new file mode 100644
index 0000000000..2729bcfcdf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A17_T1.js
@@ -0,0 +1,47 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Function call cannot appear in the program before the FunctionExpression
+    appears
+es5id: 13_A17_T1
+description: Trying to call a function before the FunctionExpression appears
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var __result = __func();
+	throw new Test262Error("#1.1: var __result = __func() lead to throwing exception");
+} catch(e) {
+  if ((e instanceof TypeError) !== true) {
+    throw new Test262Error('#1.2: func should throw a TypeError  Actual: ' + (e));  
+  }
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __func = function (){return "ONE";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+var __result = __func();
+if (__result !== "ONE") {
+	throw new Test262Error('#2: __result === "ONE". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+__func = function (){return "TWO";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+var __result = __func();
+if (__result !== "TWO") {
+	throw new Test262Error('#3: __result === "TWO". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A17_T2.js b/js/src/tests/test262/language/statements/function/S13_A17_T2.js
new file mode 100644
index 0000000000..8706dd0d3c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A17_T2.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Function call cannot appear in the program before the FunctionExpression
+    appears
+es5id: 13_A17_T2
+description: >
+    Trying to call a function before the FunctionExpression appears
+    and then using the FunctionExpression one more time
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var __result = __func();
+	throw new Test262Error("#1: var __result = __func() lead to throwing exception");
+} catch(e) {
+  if ((e instanceof TypeError) !== true) {
+    throw new Test262Error('#1.2: func should throw a TypeError  Actual: ' + (e));  
+  }
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+// now we reach the __func overwriting by new expression
+var __func = function __func(){return "ONE";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+var __result = __func();
+if (__result !== "ONE") {
+	throw new Test262Error('#2: __result === "ONE". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+__func = function __func(){return "TWO";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+var __result = __func();
+if (__result !== "TWO") {
+	throw new Test262Error('#3: __result === "TWO". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A18.js b/js/src/tests/test262/language/statements/function/S13_A18.js
new file mode 100644
index 0000000000..1ed224697b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A18.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Closures are admitted
+es5id: 13_A18
+description: Using a function declaration as a function parameter
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof sinx !== 'undefined') {
+	throw new Test262Error('#1: typeof sinx === \'undefined\'. Actual: typeof sinx ==='+typeof sinx);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __val = function derivative(f, dx) {
+    return function(x) {
+      return (f(x + dx) - f(x)) / dx;
+    };
+}(function sinx(x){return Math.sin(x);},.0001)(0.5);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof sinx !== 'undefined') {
+	throw new Test262Error('#2: typeof sinx === \'undefined\'. Actual: typeof sinx ==='+typeof sinx);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A19_T1.js b/js/src/tests/test262/language/statements/function/S13_A19_T1.js
new file mode 100644
index 0000000000..e165b0c9f5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A19_T1.js
@@ -0,0 +1,34 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "\"var\" does not override function declaration"
+es5id: 13_A19_T1
+description: >
+    Creating a function and a variable with identical Identifiers in
+    global scope
+---*/
+
+// since "var" does not override function declaration __decl is set to function
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __decl !== "function") {
+	throw new Test262Error('#1: typeof __decl === "function". Actual: typeof __decl ==='+typeof __decl);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __decl = 1;
+
+//since statement was evaluted __decl turns to 1 from function
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__decl !== 1) {
+	throw new Test262Error('#2: __decl === 1. Actual: __decl ==='+__decl);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __decl(){return 1;}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A19_T2.js b/js/src/tests/test262/language/statements/function/S13_A19_T2.js
new file mode 100644
index 0000000000..a96e8a3e7a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A19_T2.js
@@ -0,0 +1,37 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "\"var\" does not override function declaration"
+es5id: 13_A19_T2
+description: >
+    Creating a function and a variable with identical Identifiers
+    within function scope
+---*/
+
+(function (){
+
+    // since "var" does not override function declaration __decl is set to function
+    //////////////////////////////////////////////////////////////////////////////
+    //CHECK#1
+    if (typeof __decl !== "function") {
+    	throw new Test262Error('#1: typeof __decl === "function". Actual: typeof __decl ==='+typeof __decl);
+    }
+    //
+    //////////////////////////////////////////////////////////////////////////////
+    
+    var __decl = 1;
+    
+    //since statement was evaluted __decl turns to 1 from function
+    //////////////////////////////////////////////////////////////////////////////
+    //CHECK#2
+    if (__decl !== 1) {
+    	throw new Test262Error('#2: __decl === 1. Actual: __decl ==='+__decl);
+    }
+    //
+    //////////////////////////////////////////////////////////////////////////////
+
+    function __decl(){return 1;}
+})();
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A2_T1.js b/js/src/tests/test262/language/statements/function/S13_A2_T1.js
new file mode 100644
index 0000000000..aa9dae5851
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A2_T1.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: function must be evaluated inside the expression
+es5id: 13_A2_T1
+description: Defining function body with "return arg"
+---*/
+
+var x = (function __func(arg){return arg})(1);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x !== 1) {
+	throw new Test262Error('#1: x === 1. Actual: x ==='+x);
+}
+
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __func !== 'undefined') {
+	throw new Test262Error('#2: typeof __func === \'undefined\'. Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A2_T2.js b/js/src/tests/test262/language/statements/function/S13_A2_T2.js
new file mode 100644
index 0000000000..35ca568fcb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A2_T2.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: function must be evaluated inside the expression
+es5id: 13_A2_T2
+description: Defining function body with "return arg + arguments[1]"
+---*/
+
+var x = (function __func(arg){return arg + arguments[1]})(1,"1");
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x !== "11") {
+	throw new Test262Error('#1: x === "11". Actual: x ==='+x);
+}
+
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __func !== 'undefined') {
+	throw new Test262Error('#2: typeof __func === \'undefined\'. Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A2_T3.js b/js/src/tests/test262/language/statements/function/S13_A2_T3.js
new file mode 100644
index 0000000000..bdb6b69659
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A2_T3.js
@@ -0,0 +1,31 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: function must be evaluated inside the expression
+es5id: 13_A2_T3
+description: >
+    Defining function body with "return arguments[0] +"-"+
+    arguments[1]"
+---*/
+
+var x = (function __func(){return arguments[0] +"-"+ arguments[1]})("Obi","Wan");
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (x !== "Obi-Wan") {
+	throw new Test262Error('#1: x === "Obi-Wan". Actual: x ==='+x);
+}
+
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __func !== 'undefined') {
+	throw new Test262Error('#2: typeof __func === \'undefined\'. Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A3_T1.js b/js/src/tests/test262/language/statements/function/S13_A3_T1.js
new file mode 100644
index 0000000000..a742380333
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A3_T1.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The Identifier in a FunctionExpression can be referenced from inside the
+    FunctionExpression's FunctionBody to allow the function calling itself
+    recursively
+es5id: 13_A3_T1
+description: >
+    Creating a recursive function that calculates factorial, as a
+    variable.  Function call itself by its name
+---*/
+
+var __func = function __exp__func(arg){
+    if (arg === 1) {
+    	return arg;
+    } else {
+    	return __exp__func(arg-1)*arg;
+    }
+};
+
+var fact_of_3 =  __func(3);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (fact_of_3 !== 6) {
+	throw new Test262Error("#1: fact_of_3 === 6. Actual: fact_of_3 ==="+fact_of_3);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A3_T2.js b/js/src/tests/test262/language/statements/function/S13_A3_T2.js
new file mode 100644
index 0000000000..00915e1e5b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A3_T2.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The Identifier in a FunctionExpression can be referenced from inside the
+    FunctionExpression's FunctionBody to allow the function calling itself
+    recursively
+es5id: 13_A3_T2
+description: >
+    Creating a recursive function that calculates factorial, as a
+    variable.  Function calls itself by the name of the variable
+---*/
+
+var __func = function (arg){
+    if (arg === 1) {
+    	return arg;
+    } else {
+    	return __func(arg-1)*arg;
+    }
+};
+
+var fact_of_3 =  __func(3);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (fact_of_3 !== 6) {
+	throw new Test262Error("#1: fact_of_3 === 6. Actual: fact_of_3 ==="+fact_of_3);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A3_T3.js b/js/src/tests/test262/language/statements/function/S13_A3_T3.js
new file mode 100644
index 0000000000..085841d86b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A3_T3.js
@@ -0,0 +1,31 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The Identifier in a FunctionExpression can be referenced from inside the
+    FunctionExpression's FunctionBody to allow the function calling itself
+    recursively
+es5id: 13_A3_T3
+description: Creating simple recursive function that calculates factorial
+---*/
+
+function __func(arg){
+    if (arg === 1) {
+    	return arg;
+    } else {
+    	return __func(arg-1)*arg;
+    }
+};
+
+var fact_of_3 =  __func(3);
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (fact_of_3 !== 6) {
+	throw new Test262Error("#1: fact_of_3 === 6. Actual: fact_of_3 ==="+fact_of_3);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A4_T1.js b/js/src/tests/test262/language/statements/function/S13_A4_T1.js
new file mode 100644
index 0000000000..de4b130945
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A4_T1.js
@@ -0,0 +1,31 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The production FunctionDeclaration: "function Identifier (
+    FormalParameterList_opt ) { FunctionBody }" is processed by function
+    declarations
+es5id: 13_A4_T1
+description: Declaring a function that returns string
+---*/
+
+function __func(){return "zig-zig-sputnik";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1 
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func() !== "zig-zig-sputnik") {
+	throw new Test262Error('#2: __func() === "zig-zig-sputnik". Actual: __func() ==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A4_T2.js b/js/src/tests/test262/language/statements/function/S13_A4_T2.js
new file mode 100644
index 0000000000..02428a6422
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A4_T2.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The production FunctionDeclaration: "function Identifier (
+    FormalParameterList_opt ) { FunctionBody }" is processed by function
+    declarations
+es5id: 13_A4_T2
+description: >
+    Declaring a function that uses prefix increment operator within
+    its "return" Expression
+---*/
+
+function __func(arg){return ++arg;};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1 
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func(1) !== 2) {
+	throw new Test262Error('#2: __func(1) === 2. Actual: __func(1) ==='+__func(1));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A4_T3.js b/js/src/tests/test262/language/statements/function/S13_A4_T3.js
new file mode 100644
index 0000000000..9b559c8170
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A4_T3.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The production FunctionDeclaration: "function Identifier (
+    FormalParameterList_opt ) { FunctionBody }" is processed by function
+    declarations
+es5id: 13_A4_T3
+description: >
+    Declaring a function that uses arithmetical operators within its
+    "return" Expression
+---*/
+
+function __func(arg1, arg2, arg3){return arg1+=(arg2+=arg3);};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1 
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func(10, 20, 30) !== 60) {
+	throw new Test262Error('#2: __func(10, 20, 30) === 60. Actual: __func(10,20,30) ==='+__func(10,20,30));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A4_T4.js b/js/src/tests/test262/language/statements/function/S13_A4_T4.js
new file mode 100644
index 0000000000..8097d7ba57
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A4_T4.js
@@ -0,0 +1,51 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The production FunctionDeclaration: "function Identifier (
+    FormalParameterList_opt ) { FunctionBody }" is processed by function
+    declarations
+es5id: 13_A4_T4
+description: >
+    Declaring a function that uses strings concatenaion opeator within
+    its "return" Expression
+---*/
+
+function __func(){return arguments[0].name + " " + arguments[0].surname;};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1 
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func({name:'fox', surname:'malder'}) !== "fox malder") {
+	throw new Test262Error('#2: __func({name:\'fox\', surname:\'malder\'}) === "fox malder". Actual: __func({name:\'fox\', surname:\'malder\'}) ==='+__func({name:'fox', surname:'malder'}));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function func__(arg){return arg.name + " " + arg.surname;};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3 
+if (typeof func__ !== "function") {
+	throw new Test262Error('#3: typeof func__ === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (func__({name:'john', surname:'lennon'}) !== "john lennon") {
+	throw new Test262Error('#4: func__({name:\'john\', surname:\'lennon\'}) === "john lennon". Actual: __func({name:\'john\', surname:\'lennon\'}) ==='+__func({name:'john', surname:'lennon'}));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A6_T1.js b/js/src/tests/test262/language/statements/function/S13_A6_T1.js
new file mode 100644
index 0000000000..72ebedfeb3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A6_T1.js
@@ -0,0 +1,38 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    FunctionDeclaration can be overrided by other FunctionDeclaration with
+    the same Identifier
+es5id: 13_A6_T1
+description: Duplicating function declaration
+---*/
+
+function __func(){return 1};
+ 
+var __store__func = __func;
+ 
+var __1 = __func();
+ 
+ function __func(){return 'A'};
+ 
+var __A = __func();
+ 
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__store__func !== __func) {
+	throw new Test262Error('#1: __store__func === __func. Actual: __store__func ==='+__store__func);
+}
+//
+////////////////////////////////////////////////////////////////////////////// 
+ 
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__1 !== __A) {
+	throw new Test262Error('#2: __1 === __A. Actual: __1 ==='+__1);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A6_T2.js b/js/src/tests/test262/language/statements/function/S13_A6_T2.js
new file mode 100644
index 0000000000..358becf1f5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A6_T2.js
@@ -0,0 +1,38 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    FunctionDeclaration can be overrided by other FunctionDeclaration with
+    the same Identifier
+es5id: 13_A6_T2
+description: Calling a function before it is declared one more time
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+try{
+    var __result = __func();
+} catch(e) {
+    throw new Test262Error("#1: Function call can appears in the program before the FunctionDeclaration appears");
+}
+if (__result !== "SECOND") {
+	throw new Test262Error('#1.1: __result === "SECOND". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func(){return "FIRST";};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+__result = __func();
+if (__result !== "SECOND") {
+	throw new Test262Error('#2: __result === "SECOND". Actual: __result ==='+__result);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func(){return "SECOND";};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A7_T1.js b/js/src/tests/test262/language/statements/function/S13_A7_T1.js
new file mode 100644
index 0000000000..556fbd5c5a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A7_T1.js
@@ -0,0 +1,73 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The FunctionBody must be SourceElements
+es5id: 13_A7_T1
+description: Using only SourceElements within the FunctionBody
+---*/
+
+function __func(){'ground control to major tom'};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual: typeof __func ==='+typeof __func);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func__2(){b};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __func__2 !== "function") {
+	throw new Test262Error('#2: typeof __func__2 === "function". Actual: typeof __func__2 ==='+typeof __func__2);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func__3(){1};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (typeof __func__3 !== "function") {
+	throw new Test262Error('#3: typeof __func__3 === "function". Actual: typeof __func__3 ==='+typeof __func__3);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func__4(){1+c};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#4
+if (typeof __func__4 !== "function") {
+	throw new Test262Error('#4: typeof __func__4 === "function". Actual: typeof __func__4 ==='+typeof __func__4);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func__5(){inc(d)};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#5
+if (typeof __func__5 !== "function") {
+	throw new Test262Error('#5: typeof __func__5 === "function". Actual: typeof __func__5 ==='+typeof __func__5);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func__6(){var \u0042 = 1;};
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#6
+if (typeof __func__6 !== "function") {
+	throw new Test262Error('#6: typeof __func__6 === "function". Actual: typeof __func__6 ==='+typeof __func__6);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//function __func__7(){var \u003d = 1;};
+////////////////////////////////////////////////////////////////////////////////
+////CHECK#7
+//if (typeof __func__7 !== "function") {
+//	throw new Test262Error('#7: The FunctionBody must be SourceElements');
+//}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A7_T3.js b/js/src/tests/test262/language/statements/function/S13_A7_T3.js
new file mode 100644
index 0000000000..ec722be785
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A7_T3.js
@@ -0,0 +1,16 @@
+// |reftest| error:SyntaxError
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The FunctionBody must be SourceElements
+es5id: 13_A7_T3
+description: Checking if execution of "function __func(){\A\B\C}" fails
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function __func(){\A\B\C};
diff --git a/js/src/tests/test262/language/statements/function/S13_A8_T1.js b/js/src/tests/test262/language/statements/function/S13_A8_T1.js
new file mode 100644
index 0000000000..609f00704e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A8_T1.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Arguments property of activation object contains real params to be passed
+es5id: 13_A8_T1
+description: >
+    Creating a function declared with "function __func(param1, param2,
+    param3)" and using arguments.length property in order to perform
+    the test
+---*/
+
+function __func(param1, param2, param3) {
+ 	return arguments.length;
+ }
+ 
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func('A') !== 1) {
+ 	throw new Test262Error('#1: __func(\'A\') === 1. Actual: __func(\'A\') ==='+__func('A'));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func('A', 'B', 1, 2,__func) !== 5) {
+	throw new Test262Error('#2: __func(\'A\', \'B\', 1, 2,__func) === 5. Actual: __func(\'A\', \'B\', 1, 2,__func) ==='+__func('A', 'B', 1, 2,__func));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A8_T2.js b/js/src/tests/test262/language/statements/function/S13_A8_T2.js
new file mode 100644
index 0000000000..be709296c8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A8_T2.js
@@ -0,0 +1,40 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Arguments property of activation object contains real params to be passed
+es5id: 13_A8_T2
+description: >
+    Creating a function with no parameters and using arguments.length
+    property in order to perform the test
+---*/
+
+function __func() {
+ 	return arguments.length;
+ }
+ 
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func('A') !== 1) {
+ 	throw new Test262Error('#1: __func(\'A\') === 1. Actual: __func(\'A\') ==='+__func('A'));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func('A', 'B', 1, 2,__func) !== 5) {
+	throw new Test262Error('#2: __func(\'A\', \'B\', 1, 2,__func) === 5. Actual: __func(\'A\', \'B\', 1, 2,__func) ==='+__func('A', 'B', 1, 2,__func));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+if (__func() !== 0) {
+	throw new Test262Error('#3: __func() === 0. Actual: __func() ==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S13_A9.js b/js/src/tests/test262/language/statements/function/S13_A9.js
new file mode 100644
index 0000000000..d36d86d099
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S13_A9.js
@@ -0,0 +1,21 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Function can be passed as argument
+es5id: 13_A9
+description: Using function as argument of another function
+---*/
+
+function __func__INC(arg){return arg + 1;};
+function __func__MULT(incrementator, arg, mult){ return incrementator(arg)*mult; };
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func__MULT(__func__INC, 2, 2) !== 6) {
+	throw new Test262Error('#1: function  can be passed as argument');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S14_A2.js b/js/src/tests/test262/language/statements/function/S14_A2.js
new file mode 100644
index 0000000000..d66482a36a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S14_A2.js
@@ -0,0 +1,31 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: FunctionDeclaration cannot be localed inside an Expression
+es5id: 14_A2
+description: Declaring a function within an "if" Expression
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof f !== 'undefined') {
+	throw new Test262Error('#1: typeof f === \'undefined\'. Actual:  typeof f ==='+ typeof f  );
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (function f(arg){
+	if (arg===0)
+	   return 1;
+	else
+	   return f(arg-1)*arg;
+}(3)!==6) {
+	throw new Test262Error('#2: FunctionDeclaration cannot be localed inside an Expression');
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S14_A3.js b/js/src/tests/test262/language/statements/function/S14_A3.js
new file mode 100644
index 0000000000..09ebe3e2a0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S14_A3.js
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Global FunctionDeclaration cannot be defined within the body of another
+    FunctionDeclaration
+es5id: 14_A3
+description: Declaring a function within the body of another function
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof __func !== "function") {
+	throw new Test262Error('#1: typeof __func === "function". Actual:  typeof __func ==='+ typeof __func  );
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof __gunc !== "undefined") {
+	throw new Test262Error('#2: typeof __gunc === "undefined". Actual:  typeof __gunc ==='+ typeof __gunc  );
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func(){
+    function __gunc(){return true};
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S14_A5_T1.js b/js/src/tests/test262/language/statements/function/S14_A5_T1.js
new file mode 100644
index 0000000000..ced62566b6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S14_A5_T1.js
@@ -0,0 +1,26 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The Identifier within a FunctionDeclaration can be written in both letters
+    and unicode
+es5id: 14_A5_T1
+description: >
+    Declaring a function with "function
+    __\u0066\u0075\u006e\u0063(){return "both"}"
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== "both") {
+	throw new Test262Error('#1: __func() === "both". Actual:  __func() ==='+ __func()  );
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func(){return "ascii"};
+function \u005f\u005f\u0066\u0075\u006e\u0063(){return "unicode"};//__func in unicode
+function __\u0066\u0075\u006e\u0063(){return "both"};//__func in unicode
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/S14_A5_T2.js b/js/src/tests/test262/language/statements/function/S14_A5_T2.js
new file mode 100644
index 0000000000..45a22d4de9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/S14_A5_T2.js
@@ -0,0 +1,25 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The Identifier within a FunctionDeclaration can be written in both letters
+    and unicode
+es5id: 14_A5_T2
+description: >
+    Declaring a function with "function
+    \u005f\u005f\u0066\u0075\u006e\u0063(){return "unicode"}"
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func() !== "unicode") {
+	throw new Test262Error('#1: __func() === "unicode". Actual:  __func() ==='+ __func()  );
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func(){return "ascii"};
+function \u005f\u005f\u0066\u0075\u006e\u0063(){return "unicode"};//__func in unicode
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/arguments-with-arguments-fn.js b/js/src/tests/test262/language/statements/function/arguments-with-arguments-fn.js
new file mode 100644
index 0000000000..b868647bd6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/arguments-with-arguments-fn.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+es6id: 9.2.12
+description: >
+  Arguments object is created even when the body contains a lexically-scoped
+  binding named "arguments"
+info: |
+  [...]
+  19. Else if "arguments" is an element of parameterNames, then
+      a. Let argumentsObjectNeeded be false.
+  20. Else if hasParameterExpressions is false, then
+      a. If "arguments" is an element of functionNames or if "arguments" is an
+         element of lexicalNames, then
+         i. Let argumentsObjectNeeded be false.
+  [...]
+flags: [noStrict]
+---*/
+
+var args;
+
+function f(x = args = arguments) {
+  function arguments() {}
+}
+
+f();
+
+assert.sameValue(typeof args, 'object');
+assert.sameValue(args.length, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/arguments-with-arguments-lex.js b/js/src/tests/test262/language/statements/function/arguments-with-arguments-lex.js
new file mode 100644
index 0000000000..5c983389d5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/arguments-with-arguments-lex.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+es6id: 9.2.12
+description: >
+  Arguments object is created even when the body contains a function named
+  "arguments"
+info: |
+  [...]
+  19. Else if "arguments" is an element of parameterNames, then
+      a. Let argumentsObjectNeeded be false.
+  20. Else if hasParameterExpressions is false, then
+      a. If "arguments" is an element of functionNames or if "arguments" is an
+         element of lexicalNames, then
+         i. Let argumentsObjectNeeded be false.
+  [...]
+flags: [noStrict]
+---*/
+
+var args;
+
+function f(x = args = arguments) {
+  let arguments;
+}
+
+f();
+
+assert.sameValue(typeof args, 'object');
+assert.sameValue(args.length, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/array-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/function/array-destructuring-param-strict-body.js
new file mode 100644
index 0000000000..e6b614bcf5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/array-destructuring-param-strict-body.js
@@ -0,0 +1,134 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/array-destructuring-param-strict-body.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: ArrayBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [rest-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.4 Static Semantics: IsSimpleParameterList
+
+    BindingElement : BindingPattern
+
+    1. Return false.
+
+    14.1.2 Static Semantics: Early Errors
+
+    FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+    FunctionDeclaration : function ( FormalParameters ) { FunctionBody }
+    FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.2.1 Static Semantics: Early Errors
+
+    ArrowFunction : ArrowParameters => ConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and
+      IsSimpleParameterList of ArrowParameters is false.
+
+    14.3.1 Static Semantics: Early Errors
+
+    MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of PropertySetParameterList is false.
+
+    14.4.1 Static Semantics: Early Errors
+
+    GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+    GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+    GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    14.5.1 Static Semantics: Early Errors
+
+    AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.7.1 Static Semantics: Early Errors
+
+    AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.8.1 Static Semantics: Early Errors
+
+    AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and
+      IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false.
+
+---*/
+$DONOTEVALUATE();
+
+function f([element]) {
+  "use strict";
+}
diff --git a/js/src/tests/test262/language/statements/function/browser.js b/js/src/tests/test262/language/statements/function/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/cptn-decl.js b/js/src/tests/test262/language/statements/function/cptn-decl.js
new file mode 100644
index 0000000000..7e0c9a90cd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/cptn-decl.js
@@ -0,0 +1,15 @@
+// Copyright (C) 2017 Apple Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions-runtime-semantics-evaluation
+description: Function declaration completion value is empty.
+info: |
+    FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    1. Return NormalCompletion(empty).
+---*/
+
+assert.sameValue(eval('function f() {}'), undefined);
+assert.sameValue(eval('1; function f() {}'), 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-abrupt.js b/js/src/tests/test262/language/statements/function/dflt-params-abrupt.js
new file mode 100644
index 0000000000..577d4141d1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-abrupt.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-abrupt.case
+// - src/function-forms/error/func-decl.template
+/*---
+description: Abrupt completion returned by evaluation of initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+
+---*/
+
+var callCount = 0;
+function f(_ = (function() { throw new Test262Error(); }())) {
+  
+  callCount = callCount + 1;
+}
+assert.throws(Test262Error, function() {
+  f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-arg-val-not-undefined.js b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-not-undefined.js
new file mode 100644
index 0000000000..367fdd31ac
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-not-undefined.js
@@ -0,0 +1,87 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-arg-val-not-undefined.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Use of initializer when argument value is not `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    [...]
+    23. Let iteratorRecord be Record {[[Iterator]]:
+        CreateListIterator(argumentsList), [[Done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        a. Perform ? IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+---*/
+var obj = {};
+var falseCount = 0;
+var stringCount = 0;
+var nanCount = 0;
+var zeroCount = 0;
+var nullCount = 0;
+var objCount = 0;
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
+  assert.sameValue(aFalse, false);
+  assert.sameValue(aString, '');
+  assert.sameValue(aNaN, NaN);
+  assert.sameValue(a0, 0);
+  assert.sameValue(aNull, null);
+  assert.sameValue(aObj, obj);
+  callCount = callCount + 1;
+}
+
+ref(false, '', NaN, 0, null, obj);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
+assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
+assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
+assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
+assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
+assert.sameValue(objCount, 0, 'initializer not evaluated: object');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js
new file mode 100644
index 0000000000..3aacdd8a81
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-arg-val-undefined.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Use of initializer when argument value is `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    [...]
+    23. Let iteratorRecord be Record {[[Iterator]]:
+        CreateListIterator(argumentsList), [[Done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        a. Perform ? IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+---*/
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+  assert.sameValue(fromLiteral, 23);
+  assert.sameValue(fromExpr, 45);
+  assert.sameValue(fromHole, 99);
+  callCount = callCount + 1;
+}
+
+ref(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-duplicates.js b/js/src/tests/test262/language/statements/function/dflt-params-duplicates.js
new file mode 100644
index 0000000000..2863fb152e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-duplicates.js
@@ -0,0 +1,63 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-duplicates.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.2 Static Semantics: Early Errors
+
+    StrictFormalParameters : FormalParameters
+
+    - It is a Syntax Error if BoundNames of FormalParameters contains any
+      duplicate elements.
+
+    FormalParameters : FormalParameterList
+
+    - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
+      false and BoundNames of FormalParameterList contains any duplicate
+      elements.
+
+---*/
+$DONOTEVALUATE();
+
+function f(x = 0, x) {
+  
+}
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-ref-later.js b/js/src/tests/test262/language/statements/function/dflt-params-ref-later.js
new file mode 100644
index 0000000000..6bc1f74cce
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-ref-later.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-ref-later.case
+// - src/function-forms/error/func-decl.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+
+---*/
+var x = 0;
+
+var callCount = 0;
+function f(x = y, y) {
+  
+  callCount = callCount + 1;
+}
+assert.throws(ReferenceError, function() {
+  f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-ref-prior.js b/js/src/tests/test262/language/statements/function/dflt-params-ref-prior.js
new file mode 100644
index 0000000000..888cc81114
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-ref-prior.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-ref-prior.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Referencing a parameter that occurs earlier in the ParameterList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+
+---*/
+var x = 0;
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(x, y = x, z = y) {
+  assert.sameValue(x, 3, 'first argument value');
+  assert.sameValue(y, 3, 'second argument value');
+  assert.sameValue(z, 3, 'third argument value');
+  callCount = callCount + 1;
+}
+
+ref(3);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-ref-self.js b/js/src/tests/test262/language/statements/function/dflt-params-ref-self.js
new file mode 100644
index 0000000000..552f0c2efb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-ref-self.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-ref-self.case
+// - src/function-forms/error/func-decl.template
+/*---
+description: Referencing a parameter from within its own initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+
+---*/
+var x = 0;
+
+var callCount = 0;
+function f(x = x) {
+  
+  callCount = callCount + 1;
+}
+assert.throws(ReferenceError, function() {
+  f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-rest.js b/js/src/tests/test262/language/statements/function/dflt-params-rest.js
new file mode 100644
index 0000000000..4cfb8fa37a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-rest.js
@@ -0,0 +1,67 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-rest.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: RestParameter does not support an initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1 Function Definitions
+
+    Syntax
+
+    FunctionRestParameter[Yield] :
+
+      BindingRestElement[?Yield]
+
+    13.3.3 Destructuring Binding Patterns
+
+    Syntax
+
+    BindingRestElement[Yield] :
+
+      ...BindingIdentifier[?Yield]
+      ...BindingPattern[?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+function f(...x = []) {
+  
+}
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-trailing-comma.js b/js/src/tests/test262/language/statements/function/dflt-params-trailing-comma.js
new file mode 100644
index 0000000000..e0c766be90
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-trailing-comma.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: A trailing comma should not increase the respective length, using default parameters (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Trailing comma in the parameters list
+
+    14.1 Function Definitions
+
+    FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
+---*/
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(a, b = 39,) {
+  assert.sameValue(a, 42);
+  assert.sameValue(b, 39);
+  callCount = callCount + 1;
+}
+
+ref(42, undefined, 1);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(ref.length, 1, 'length is properly set');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-close.js b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-close.js
new file mode 100644
index 0000000000..16252b5168
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+       result).
+    [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return { value: null, done: false };
+    },
+    return: function() {
+      doneCallCount += 1;
+      return {};
+    }
+  };
+};
+
+var callCount = 0;
+function f([x]) {
+  assert.sameValue(doneCallCount, 1);
+  callCount = callCount + 1;
+};
+f(iter);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err-array-prototype.js b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err-array-prototype.js
new file mode 100644
index 0000000000..11e56935b8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err-array-prototype.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err-array-prototype.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iteratorRecord be ? GetIterator(value).
+
+    GetIterator ( obj [ , hint [ , method ] ] )
+
+    [...]
+    4. Let iterator be ? Call(method, obj).
+
+    Call ( F, V [ , argumentsList ] )
+
+    [...]
+    2. If IsCallable(F) is false, throw a TypeError exception.
+
+---*/
+delete Array.prototype[Symbol.iterator];
+
+function f([x, y, z]) {}
+
+assert.throws(TypeError, function() {
+  f([1, 2, 3]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err.js
new file mode 100644
index 0000000000..2b854024f7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-get-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iterator be GetIterator(value).
+    2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+  throw new Test262Error();
+};
+
+function f([x]) {}
+
+assert.throws(Test262Error, function() {
+  f(iter);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-no-close.js b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-no-close.js
new file mode 100644
index 0000000000..b747b8e2e2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+       result).
+    [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return { value: null, done: true };
+    },
+    return: function() {
+      doneCallCount += 1;
+      return {};
+    }
+  };
+};
+
+var callCount = 0;
+function f([x]) {
+  assert.sameValue(doneCallCount, 0);
+  callCount = callCount + 1;
+};
+f(iter);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-name-iter-val.js b/js/src/tests/test262/language/statements/function/dstr/ary-name-iter-val.js
new file mode 100644
index 0000000000..bc5c3ba848
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding with normal value iteration (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 3);
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..ef33c24e34
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]]) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-iter.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..3b0405e941
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]]) {
+  assert.sameValue(x, 7);
+  assert.sameValue(y, 8);
+  assert.sameValue(z, 9);
+  callCount = callCount + 1;
+};
+f([[7, 8, 9]]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..18da2bd987
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()]) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 0);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-iter.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..0dfcd5333e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+  callCount += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()]) {
+  assert.sameValue(callCount, 0);
+  callCount = callCount + 1;
+};
+f([[]]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..df20a2052e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; return iter; }()]) {
+  assert.sameValue(initCount, 1);
+  assert.sameValue(iterCount, 0);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-iter.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..9adfd86715
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; }()]) {
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f([[23]]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..bd28052df5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function f([[...x] = values]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x[0], 2);
+  assert.sameValue(x[1], 1);
+  assert.sameValue(x[2], 3);
+  assert.sameValue(x.length, 3);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-iter.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..e04582bb72
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function f([[...x] = function() { initCount += 1; }()]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x[0], 2);
+  assert.sameValue(x[1], 1);
+  assert.sameValue(x[2], 3);
+  assert.sameValue(x.length, 3);
+  assert.notSameValue(x, values);
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f([values]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-val-null.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..d553ad96ac
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Nested array destructuring with a null value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iterator be GetIterator(value).
+    2. ReturnIfAbrupt(iterator).
+---*/
+
+function f([[x]]) {}
+
+assert.throws(TypeError, function() {
+  f([null]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..008f37c4bf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23]) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..67b63f246a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([arrow = () => {}]) {
+  assert.sameValue(arrow.name, 'arrow');
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ddecbe6b96
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+  assert.sameValue(cls.name, 'cls');
+  assert.notSameValue(xCls.name, 'xCls');
+  assert.notSameValue(xCls2.name, 'xCls2');
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..450bcdbc3f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cover = (function () {}), xCover = (0, function() {})]) {
+  assert.sameValue(cover.name, 'cover');
+  assert.notSameValue(xCover.name, 'xCover');
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..ede01e6f42
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([fn = function () {}, xFn = function x() {}]) {
+  assert.sameValue(fn.name, 'fn');
+  assert.notSameValue(xFn.name, 'xFn');
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..07c213741a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+
+---*/
+
+var callCount = 0;
+function f([gen = function* () {}, xGen = function* x() {}]) {
+  assert.sameValue(gen.name, 'gen');
+  assert.notSameValue(xGen.name, 'xGen');
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-hole.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..fdc6489113
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer with a "hole" (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    SingleNameBinding : BindingIdentifier Initializeropt
+    [...] 6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23]) {
+  assert.sameValue(x, 23);
+  // another statement
+  callCount = callCount + 1;
+};
+f([,]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..580f912c6a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f([w = counter(), x = counter(), y = counter(), z = counter()]) {
+  assert.sameValue(w, null);
+  assert.sameValue(x, 0);
+  assert.sameValue(y, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f([null, 0, false, '']);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..5d1515520e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+
+function f([x = (function() { throw new Test262Error(); })()]) {}
+
+assert.throws(Test262Error, function() {
+  f([undefined]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-undef.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..fad5ab108f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer with an undefined value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23]) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f([undefined]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..c545fd680d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f([ x = unresolvableReference ]) {}
+
+assert.throws(ReferenceError, function() {
+  f([]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-complete.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..db500d9a23
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding when value iteration completes (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x]) {
+  assert.sameValue(x, undefined);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-done.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..80160c24bd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([_, x]) {
+  assert.sameValue(x, undefined);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-step-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..a61a89af9c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      throw new Test262Error();
+    }
+  };
+};
+
+function f([x]) {}
+
+assert.throws(Test262Error, function() {
+  f(g);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js
new file mode 100644
index 0000000000..ed9132b868
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializer_opt
+
+    1. Let bindingId be StringValue of BindingIdentifier.
+    2. Let lhs be ? ResolveBinding(bindingId, environment).
+    3. If iteratorRecord.[[Done]] is false, then
+        a. Let next be IteratorStep(iteratorRecord).
+        b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
+        c. ReturnIfAbrupt(next).
+        d. If next is false, set iteratorRecord.[[Done]] to true.
+        e. Else,
+            i. Let v be IteratorValue(next).
+            ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true.
+            iii. ReturnIfAbrupt(v).
+    [...]
+    7. Return InitializeReferencedBinding(lhs, v).
+
+---*/
+Array.prototype[Symbol.iterator] = function* () {
+    if (this.length > 0) {
+        yield this[0];
+    }
+    if (this.length > 1) {
+        yield this[1];
+    }
+    if (this.length > 2) {
+        yield 42;
+    }
+};
+
+var callCount = 0;
+function f([x, y, z]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 42);
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..b226203dbd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+              true.
+          iii. ReturnIfAbrupt(v).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return poisonedValue;
+    }
+  };
+};
+
+function f([x]) {}
+
+assert.throws(Test262Error, function() {
+  f(g);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..235d76f129
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 3);
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..ee6d5e6e9b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+  assert.sameValue(x, 44);
+  assert.sameValue(y, 55);
+  assert.sameValue(z, 66);
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..5b6b7c5d46
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+  assert.sameValue(x, 11);
+  assert.sameValue(y, 22);
+  assert.sameValue(z, 33);
+  callCount = callCount + 1;
+};
+f([{ x: 11, y: 22, z: 33 }]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id-init.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..05b0b7b119
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+  assert.sameValue(v, 444);
+  assert.sameValue(x, 555);
+  assert.sameValue(z, 666);
+
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..98bb7c4229
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+  assert.sameValue(v, 777);
+  assert.sameValue(x, 888);
+  assert.sameValue(z, 999);
+
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f([{ u: 777, w: 888, y: 999 }]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-null.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..78d41ccd06
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Nested object destructuring with a null value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ObjectBindingPattern
+
+    1. Let valid be RequireObjectCoercible(value).
+    2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }]) {}
+
+assert.throws(TypeError, function() {
+  f([null]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-undef.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..ebc74d9197
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ObjectBindingPattern
+
+    1. Let valid be RequireObjectCoercible(value).
+    2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }]) {}
+
+assert.throws(TypeError, function() {
+  f([]);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..70b014538d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Elision accepts exhausted iterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+    2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function f([,]) {
+  
+  callCount = callCount + 1;
+};
+f(iter);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-step-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..8b3ce84951
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision-step-err.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+  throw new Test262Error();
+  following += 1;
+}();
+
+function f([,]) {}
+
+assert.throws(Test262Error, function() {
+  f(iter);
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision.js
new file mode 100644
index 0000000000..27466cd07e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Elision advances iterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+    2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([,]) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 0);
+  callCount = callCount + 1;
+};
+f(g());
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-empty.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-empty.js
new file mode 100644
index 0000000000..6bb86e3360
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ ]
+
+    1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+  iterations += 1;
+}();
+
+var callCount = 0;
+function f([]) {
+  assert.sameValue(iterations, 0);
+  callCount = callCount + 1;
+};
+f(iter);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elem.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..7fc9c3df53
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([...[x, y, z]]) {
+  assert.sameValue(x, 3);
+  assert.sameValue(y, 4);
+  assert.sameValue(z, 5);
+  callCount = callCount + 1;
+};
+f([3, 4, 5]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..06c692fa68
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing an elision (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+    2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([...[,]]) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 1);
+  callCount = callCount + 1;
+};
+f(g());
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-empty.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..6707ef04a5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing an "empty" array pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ ]
+
+    1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+  iterations += 1;
+}();
+
+var callCount = 0;
+function f([...[]]) {
+  assert.sameValue(iterations, 1);
+  callCount = callCount + 1;
+};
+f(iter);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-rest.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..206cdb6c90
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing a rest element (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...[...x]]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 1);
+  assert.sameValue(x[1], 2);
+  assert.sameValue(x[2], 3);
+  assert.notSameValue(x, values);
+
+  callCount = callCount + 1;
+};
+f(values);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-direct.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-direct.js
new file mode 100644
index 0000000000..3a207e8774
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-direct.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-direct.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Lone rest element (direct binding) (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+includes: [compareArray.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingIdentifier
+
+    [...]
+    2. Let A be ! ArrayCreate(0).
+    3. Let n be 0.
+    4. Repeat,
+        [...]
+        f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
+        g. Set n to n + 1.
+
+---*/
+
+var callCount = 0;
+function f([...x]) {
+  assert(Array.isArray(x));
+  assert.compareArray(x, [1]);
+  callCount = callCount + 1;
+};
+f([1]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision-next-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..0f65e18e61
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Rest element following elision elements (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+    1. If Elision is present, then
+       a. Let status be the result of performing
+          IteratorDestructuringAssignmentEvaluation of Elision with
+          iteratorRecord as the argument.
+       b. ReturnIfAbrupt(status).
+    2. Return the result of performing IteratorBindingInitialization for
+       BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function f([, ...x]) {}
+
+assert.throws(Test262Error, function() {
+  f(iter);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..bc81108aae
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element following elision elements (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+    1. If Elision is present, then
+       a. Let status be the result of performing
+          IteratorDestructuringAssignmentEvaluation of Elision with
+          iteratorRecord as the argument.
+       b. ReturnIfAbrupt(status).
+    2. Return the result of performing IteratorBindingInitialization for
+       BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function f([ , , ...x]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 3);
+  assert.sameValue(x[1], 4);
+  assert.sameValue(x[2], 5);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f(values);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..021b307443
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: RestElement applied to an exhausted iterator (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. If environment is undefined, return PutValue(lhs, A).
+          ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function f([, , ...x]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 0);
+  callCount = callCount + 1;
+};
+f([1, 2]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-step-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..930983759b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       a. If iteratorRecord.[[done]] is false,
+          i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+          ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+              true.
+          iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+  first += 1;
+  throw new Test262Error();
+  second += 1;
+}();
+
+function f([...x]) {}
+
+assert.throws(Test262Error, function() {
+  f(iter);
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-val-err.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..c8533c0a22
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       [...]
+       c. Let nextValue be IteratorValue(next).
+       d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+          true.
+       e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return poisonedValue;
+    }
+  };
+};
+
+function f([...x]) {}
+
+assert.throws(Test262Error, function() {
+  f(iter);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..915317ebc7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Lone rest element (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+       [...]
+       f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+       [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...x]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 1);
+  assert.sameValue(x[1], 2);
+  assert.sameValue(x[2], 3);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f(values);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-ary.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..6769219b28
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-ary.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (nested array pattern) does not support initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...[ x ] = []]) {
+  
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..57a4cae64b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-id.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (identifier) does not support initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...x = []]) {
+  
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-obj.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..fc213f29da
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-init-obj.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (nested object pattern) does not support initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...{ x } = []]) {
+  
+  callCount = callCount + 1;
+};
+f([]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-ary.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..82809bed78
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...[x], y]) {
+  
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..299ccae4c8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...x, y]) {
+  
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-obj.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..4f27fa7019
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...{ x }, y]) {
+  
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..e5d140ebb7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing an object binding pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+
+var callCount = 0;
+function f([...{ length }]) {
+  assert.sameValue(length, 3);
+  callCount = callCount + 1;
+};
+f([1, 2, 3]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..dea5b3d8d8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest element containing an object binding pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+let length = "outer";
+
+var callCount = 0;
+function f([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+  assert.sameValue(v, 7);
+  assert.sameValue(w, 8);
+  assert.sameValue(x, 9);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, 3);
+
+  assert.sameValue(length, "outer", "the length prop is not set as a binding name");
+  callCount = callCount + 1;
+};
+f([7, 8, 9]);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/browser.js b/js/src/tests/test262/language/statements/function/dstr/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-close.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..039b9798ba
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+       result).
+    [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return { value: null, done: false };
+    },
+    return: function() {
+      doneCallCount += 1;
+      return {};
+    }
+  };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+  assert.sameValue(doneCallCount, 1);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err-array-prototype.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err-array-prototype.js
new file mode 100644
index 0000000000..1e0021e44c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err-array-prototype.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err-array-prototype.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iteratorRecord be ? GetIterator(value).
+
+    GetIterator ( obj [ , hint [ , method ] ] )
+
+    [...]
+    4. Let iterator be ? Call(method, obj).
+
+    Call ( F, V [ , argumentsList ] )
+
+    [...]
+    2. If IsCallable(F) is false, throw a TypeError exception.
+
+---*/
+delete Array.prototype[Symbol.iterator];
+
+function f([x, y, z] = [1, 2, 3]) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err.js
new file mode 100644
index 0000000000..88ebad721d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-get-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-get-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Abrupt completion returned by GetIterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iterator be GetIterator(value).
+    2. ReturnIfAbrupt(iterator).
+
+---*/
+var iter = {};
+iter[Symbol.iterator] = function() {
+  throw new Test262Error();
+};
+
+function f([x] = iter) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-no-close.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..24526e9912
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-init-iter-no-close.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+       result).
+    [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return { value: null, done: true };
+    },
+    return: function() {
+      doneCallCount += 1;
+      return {};
+    }
+  };
+};
+
+var callCount = 0;
+function f([x] = iter) {
+  assert.sameValue(doneCallCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-name-iter-val.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..50fcc1e4be
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-name-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 3);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..b182579632
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = []) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..135ddd3924
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+  assert.sameValue(x, 7);
+  assert.sameValue(y, 8);
+  assert.sameValue(z, 9);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..1f6701b728
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = []) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..4d438b5513
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+  callCount += 1;
+};
+
+var callCount = 0;
+function f([[,] = g()] = [[]]) {
+  assert.sameValue(callCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..d77e901c6a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; return iter; }()] = []) {
+  assert.sameValue(initCount, 1);
+  assert.sameValue(iterCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..b2e73e1ea1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+var callCount = 0;
+function f([[] = function() { initCount += 1; }()] = [[23]]) {
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..be32264182
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+var callCount = 0;
+function f([[...x] = values] = []) {
+  assert(Array.isArray(x));
+  assert.sameValue(x[0], 2);
+  assert.sameValue(x[1], 1);
+  assert.sameValue(x[2], 3);
+  assert.sameValue(x.length, 3);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..f050e0b167
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       [...]
+       e. Else,
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+var callCount = 0;
+function f([[...x] = function() { initCount += 1; }()] = [values]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x[0], 2);
+  assert.sameValue(x[1], 1);
+  assert.sameValue(x[2], 3);
+  assert.sameValue(x.length, 3);
+  assert.notSameValue(x, values);
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-val-null.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-val-null.js
new file mode 100644
index 0000000000..537a4ced79
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-ary-val-null.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested array destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ArrayBindingPattern
+
+    1. Let iterator be GetIterator(value).
+    2. ReturnIfAbrupt(iterator).
+---*/
+
+function f([[x]] = [null]) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..a18c222d95
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = []) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..fb7560ea7e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([arrow = () => {}] = []) {
+  assert.sameValue(arrow.name, 'arrow');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..35208ee9e1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+  assert.sameValue(cls.name, 'cls');
+  assert.notSameValue(xCls.name, 'xCls');
+  assert.notSameValue(xCls2.name, 'xCls2');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..3e02e20c1c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([cover = (function () {}), xCover = (0, function() {})] = []) {
+  assert.sameValue(cover.name, 'cover');
+  assert.notSameValue(xCover.name, 'xCover');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..457a5316b0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([fn = function () {}, xFn = function x() {}] = []) {
+  assert.sameValue(fn.name, 'fn');
+  assert.notSameValue(xFn.name, 'xFn');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..d11c7f8166
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+
+---*/
+
+var callCount = 0;
+function f([gen = function* () {}, xGen = function* x() {}] = []) {
+  assert.sameValue(gen.name, 'gen');
+  assert.notSameValue(xGen.name, 'xGen');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-hole.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..721ae98e27
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    SingleNameBinding : BindingIdentifier Initializeropt
+    [...] 6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [,]) {
+  assert.sameValue(x, 23);
+  // another statement
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..e2295a9544
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+  assert.sameValue(w, null);
+  assert.sameValue(x, 0);
+  assert.sameValue(y, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-throws.js
new file mode 100644
index 0000000000..9991a0a209
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-throws.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+
+function f([x = (function() { throw new Test262Error(); })()] = [undefined]) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-undef.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..be4ea2e15e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       [...]
+    7. If environment is undefined, return PutValue(lhs, v).
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x = 23] = [undefined]) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js
new file mode 100644
index 0000000000..36e4bd7351
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f([ x = unresolvableReference ] = []) {}
+
+assert.throws(ReferenceError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-complete.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..0caf1bd485
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x] = []) {
+  assert.sameValue(x, undefined);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-done.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..398c727a6b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       [...]
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([_, x] = []) {
+  assert.sameValue(x, undefined);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..33ad782552
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      throw new Test262Error();
+    }
+  };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js
new file mode 100644
index 0000000000..9478c13693
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializer_opt
+
+    1. Let bindingId be StringValue of BindingIdentifier.
+    2. Let lhs be ? ResolveBinding(bindingId, environment).
+    3. If iteratorRecord.[[Done]] is false, then
+        a. Let next be IteratorStep(iteratorRecord).
+        b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
+        c. ReturnIfAbrupt(next).
+        d. If next is false, set iteratorRecord.[[Done]] to true.
+        e. Else,
+            i. Let v be IteratorValue(next).
+            ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true.
+            iii. ReturnIfAbrupt(v).
+    [...]
+    7. Return InitializeReferencedBinding(lhs, v).
+
+---*/
+Array.prototype[Symbol.iterator] = function* () {
+    if (this.length > 0) {
+        yield this[0];
+    }
+    if (this.length > 1) {
+        yield this[1];
+    }
+    if (this.length > 2) {
+        yield 42;
+    }
+};
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 42);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js
new file mode 100644
index 0000000000..febb36ce8e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set iteratorRecord.[[done]] to
+              true.
+          iii. ReturnIfAbrupt(v).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+var g = {};
+g[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return poisonedValue;
+    }
+  };
+};
+
+function f([x] = g) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..dda695d302
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([x, y, z] = [1, 2, 3]) {
+  assert.sameValue(x, 1);
+  assert.sameValue(y, 2);
+  assert.sameValue(z, 3);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..d617e8d319
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+  assert.sameValue(x, 44);
+  assert.sameValue(y, 55);
+  assert.sameValue(z, 66);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..10e3ed6ce0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+  assert.sameValue(x, 11);
+  assert.sameValue(y, 22);
+  assert.sameValue(z, 33);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..f26d8a00cd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) {
+  assert.sameValue(v, 444);
+  assert.sameValue(x, 555);
+  assert.sameValue(z, 666);
+
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..84566fd64f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPatternInitializer opt
+
+    [...]
+    2. If iteratorRecord.[[done]] is true, let v be undefined.
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be ? GetValue(defaultValue).
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) {
+  assert.sameValue(v, 777);
+  assert.sameValue(x, 888);
+  assert.sameValue(z, 999);
+
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-null.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-null.js
new file mode 100644
index 0000000000..90606b282d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-null.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a null value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ObjectBindingPattern
+
+    1. Let valid be RequireObjectCoercible(value).
+    2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = [null]) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-undef.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-undef.js
new file mode 100644
index 0000000000..e3e5a528ad
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elem-obj-val-undef.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Nested object destructuring with a value of `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+       e. Else
+          i. Let v be IteratorValue(next).
+          [...]
+    4. Return the result of performing BindingInitialization of BindingPattern
+       with v and environment as the arguments.
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPattern : ObjectBindingPattern
+
+    1. Let valid be RequireObjectCoercible(value).
+    2. ReturnIfAbrupt(valid).
+---*/
+
+function f([{ x }] = []) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..d73336b34a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       [...]
+    2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+var callCount = 0;
+function f([,] = iter) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-step-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-step-err.js
new file mode 100644
index 0000000000..5afec0d420
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision-step-err.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Elision advances iterator and forwards abrupt completions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+
+---*/
+var following = 0;
+var iter =function* () {
+  throw new Test262Error();
+  following += 1;
+}();
+
+function f([,] = iter) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+iter.next();
+assert.sameValue(following, 0, 'Iterator was properly closed.');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..9c396ff442
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-elision.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Elision advances iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+    2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([,] = g()) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-empty.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..6b2aa6810a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-empty.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ ]
+
+    1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+  iterations += 1;
+}();
+
+var callCount = 0;
+function f([] = iter) {
+  assert.sameValue(iterations, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elem.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..24cdea25a2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,85 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+       e. Else,
+          [...]
+          i. Let v be IteratorValue(next).
+          ii. If v is an abrupt completion, set
+              iteratorRecord.[[done]] to true.
+          iii. ReturnIfAbrupt(v).
+    5. If iteratorRecord.[[done]] is true, let v be undefined.
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f([...[x, y, z]] = [3, 4, 5]) {
+  assert.sameValue(x, 3);
+  assert.sameValue(y, 4);
+  assert.sameValue(z, 5);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..6064ae16ce
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,91 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an elision (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ Elision ]
+
+    1. Return the result of performing
+       IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+       as the argument.
+
+    12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+    Elision : ,
+
+    1. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+       d. If next is false, set iteratorRecord.[[done]] to true.
+    2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+  first += 1;
+  yield;
+  second += 1;
+};
+
+var callCount = 0;
+function f([...[,]] = g()) {
+  assert.sameValue(first, 1);
+  assert.sameValue(second, 1);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-empty.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..439abacd1a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    ArrayBindingPattern : [ ]
+
+    1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+  iterations += 1;
+}();
+
+var callCount = 0;
+function f([...[]] = iter) {
+  assert.sameValue(iterations, 1);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-rest.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..9b7f87af9c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...[...x]] = values) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 1);
+  assert.sameValue(x[1], 2);
+  assert.sameValue(x[2], 3);
+  assert.notSameValue(x, values);
+
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-direct.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-direct.js
new file mode 100644
index 0000000000..787abfb1ce
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-direct.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-direct.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Lone rest element (direct binding) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+includes: [compareArray.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingIdentifier
+
+    [...]
+    2. Let A be ! ArrayCreate(0).
+    3. Let n be 0.
+    4. Repeat,
+        [...]
+        f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue).
+        g. Set n to n + 1.
+
+---*/
+
+var callCount = 0;
+function f([...x] = [1]) {
+  assert(Array.isArray(x));
+  assert.compareArray(x, [1]);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js
new file mode 100644
index 0000000000..79d37c6562
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+    1. If Elision is present, then
+       a. Let status be the result of performing
+          IteratorDestructuringAssignmentEvaluation of Elision with
+          iteratorRecord as the argument.
+       b. ReturnIfAbrupt(status).
+    2. Return the result of performing IteratorBindingInitialization for
+       BindingRestElement with iteratorRecord and environment as arguments.
+
+---*/
+var iter = (function*() { throw new Test262Error(); })();
+
+function f([, ...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..5f202dfb07
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element following elision elements (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+    1. If Elision is present, then
+       a. Let status be the result of performing
+          IteratorDestructuringAssignmentEvaluation of Elision with
+          iteratorRecord as the argument.
+       b. ReturnIfAbrupt(status).
+    2. Return the result of performing IteratorBindingInitialization for
+       BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+var callCount = 0;
+function f([ , , ...x] = values) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 3);
+  assert.sameValue(x[1], 4);
+  assert.sameValue(x[2], 5);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-exhausted.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..745537ba41
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. If environment is undefined, return PutValue(lhs, A).
+          ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+var callCount = 0;
+function f([, , ...x] = [1, 2]) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js
new file mode 100644
index 0000000000..c7f07ca0c1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       a. If iteratorRecord.[[done]] is false,
+          i. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+          ii. If next is an abrupt completion, set iteratorRecord.[[done]] to
+              true.
+          iii. ReturnIfAbrupt(next).
+
+---*/
+var first = 0;
+var second = 0;
+var iter = function*() {
+  first += 1;
+  throw new Test262Error();
+  second += 1;
+}();
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+iter.next();
+assert.sameValue(first, 1);
+assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js
new file mode 100644
index 0000000000..07ff4eebf2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorValue returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [Symbol.iterator, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+       environment).
+    2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+       [...]
+       c. Let nextValue be IteratorValue(next).
+       d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to
+          true.
+       e. ReturnIfAbrupt(nextValue).
+
+---*/
+var poisonedValue = Object.defineProperty({}, 'value', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      return poisonedValue;
+    }
+  };
+};
+
+function f([...x] = iter) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f55e8075cb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Lone rest element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+    BindingRestElement : ... BindingIdentifier
+    [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+       [...]
+       f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+       [...]
+---*/
+var values = [1, 2, 3];
+
+var callCount = 0;
+function f([...x] = values) {
+  assert(Array.isArray(x));
+  assert.sameValue(x.length, 3);
+  assert.sameValue(x[0], 1);
+  assert.sameValue(x[1], 2);
+  assert.sameValue(x[2], 3);
+  assert.notSameValue(x, values);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-ary.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..55568d3607
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (nested array pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...[ x ] = []] = []) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..3b42cf7732
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (identifier) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...x = []] = []) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-obj.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..68324d49a1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (nested object pattern) does not support initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...{ x } = []] = []) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-ary.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..aa2c49a263
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...[x], y] = [1, 2, 3]) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..e5586adfdd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...x, y] = [1, 2, 3]) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-obj.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..987af5c16b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+    ArrayBindingPattern[Yield] :
+        [ Elisionopt BindingRestElement[?Yield]opt ]
+        [ BindingElementList[?Yield] ]
+        [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+$DONOTEVALUATE();
+
+var callCount = 0;
+function f([...{ x }, y] = [1, 2, 3]) {
+  
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..1d9e9a564d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+
+var callCount = 0;
+function f([...{ length }] = [1, 2, 3]) {
+  assert.sameValue(length, 3);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..40b6632b4f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    BindingRestElement : ... BindingPattern
+
+    1. Let A be ArrayCreate(0).
+    [...]
+    3. Repeat
+       [...]
+       b. If iteratorRecord.[[done]] is true, then
+          i. Return the result of performing BindingInitialization of
+             BindingPattern with A and environment as the arguments.
+       [...]
+---*/
+let length = "outer";
+
+var callCount = 0;
+function f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+  assert.sameValue(v, 7);
+  assert.sameValue(w, 8);
+  assert.sameValue(x, 9);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, 3);
+
+  assert.sameValue(length, "outer", "the length prop is not set as a binding name");
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-null.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-null.js
new file mode 100644
index 0000000000..3d1c31c1d7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+
+function f({} = null) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-undefined.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-undefined.js
new file mode 100644
index 0000000000..7721c9a624
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-init-undefined.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+
+function f({} = undefined) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-empty.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..e33f6dbb9d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+  get: function() {
+    accessCount += 1;
+  }
+});
+
+var callCount = 0;
+function f({} = obj) {
+  assert.sameValue(accessCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-get-value-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..c8b824ba4a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. Let v be GetV(value, propertyName).
+    5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+function f({ poisoned } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..f762208a95
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ arrow = () => {} } = {}) {
+  assert.sameValue(arrow.name, 'arrow');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ce7c96c8e8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+  assert.sameValue(cls.name, 'cls');
+  assert.notSameValue(xCls.name, 'xCls');
+  assert.notSameValue(xCls2.name, 'xCls2');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..cbfe8f198a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ cover = (function () {}), xCover = (0, function() {})  } = {}) {
+  assert.sameValue(cover.name, 'cover');
+  assert.notSameValue(xCover.name, 'xCover');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..4447d04188
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ fn = function () {}, xFn = function x() {} } = {}) {
+  assert.sameValue(fn.name, 'fn');
+  assert.notSameValue(xFn.name, 'xFn');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b63faed164
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+
+---*/
+
+var callCount = 0;
+function f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+  assert.sameValue(gen.name, 'gen');
+  assert.notSameValue(xGen.name, 'xGen');
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..c6e73db2f9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+    [...]
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+  assert.sameValue(w, null);
+  assert.sameValue(x, 0);
+  assert.sameValue(y, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..6da01e2fef
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-throws.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let  defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ x = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..7ae174d219
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..9df9b6455b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x, } = { x: 23 }) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-list-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-list-err.js
new file mode 100644
index 0000000000..f42fcca11f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-list-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPropertyList : BindingPropertyList , BindingProperty
+
+    1. Let status be the result of performing BindingInitialization for
+       BindingPropertyList using value and environment as arguments.
+    2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ a, b = thrower(), c = ++initCount } = {}) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+assert.sameValue(initCount, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..628ff18100
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..edf33341c0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: [y], } = { x: [45] }) {
+  assert.sameValue(y,45);
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-value-null.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..876bbe8ec0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..b3de9df33d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+  assert.sameValue(x, 7);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, undefined);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-eval-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..a931cd9ae3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-eval-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingProperty : PropertyName : BindingElement
+
+    1. Let P be the result of evaluating PropertyName
+    2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ [thrower()]: x } = {}) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-get-value-err.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..53f7517c0f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. Let v be GetV(value, propertyName).
+    2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+function f({ poisoned: x = ++initEvalCount } = poisonedProperty) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+assert.sameValue(initEvalCount, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..a506f0e9d1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+    [...]
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+  assert.sameValue(t, null);
+  assert.sameValue(v, 0);
+  assert.sameValue(x, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+
+  assert.throws(ReferenceError, function() {
+    s;
+  });
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..319d22efb3
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ x: y = thrower() } = {}) {}
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..6cb94987cd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x: y = unresolvableReference } = {}) {}
+
+assert.throws(ReferenceError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..deb3ad15eb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y = 33 } = { }) {
+  assert.sameValue(y, 33);
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..b27c7bd0fd
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: y, } = { x: 23 }) {
+  assert.sameValue(y, 23);
+
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..713545b927
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y } = { x: 23 }) {
+  assert.sameValue(y, 23);
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-init.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..6b13689b61
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-null.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..c744de7878
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-undef.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..59a91bc79b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = undefined } = { }) {}
+
+assert.throws(TypeError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..fcf5954fb0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding, default-parameters]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+  assert.sameValue(x, undefined);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, 7);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-getter.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..fc3c63ae84
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding, default-parameters]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+var count = 0;
+
+var callCount = 0;
+function f({...x} = { get v() { count++; return 2; } }) {
+  assert.sameValue(count, 1);
+
+  verifyProperty(x, "v", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 2
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..654d65653f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding, default-parameters]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+var callCount = 0;
+function f({...rest} = o) {
+  assert.sameValue(rest.x, undefined);
+
+  verifyProperty(rest, "a", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 3
+  });
+
+  verifyProperty(rest, "b", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 4
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-val-obj.js b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..e7f8f49ef4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/func-decl-dflt.template
+/*---
+description: Rest object contains just unextracted data (function declaration (default parameter))
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding, default-parameters]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+
+var callCount = 0;
+function f({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+  assert.sameValue(rest.a, undefined);
+  assert.sameValue(rest.b, undefined);
+
+  verifyProperty(rest, "x", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 1
+  });
+
+  verifyProperty(rest, "y", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 2
+  });
+  callCount = callCount + 1;
+};
+f();
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-init-null.js b/js/src/tests/test262/language/statements/function/dstr/obj-init-null.js
new file mode 100644
index 0000000000..b817199ea0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-init-null.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-null.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (null) (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+
+function f({}) {}
+
+assert.throws(TypeError, function() {
+  f(null);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-init-undefined.js b/js/src/tests/test262/language/statements/function/dstr/obj-init-undefined.js
new file mode 100644
index 0000000000..83d41c0e7f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-init-undefined.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-init-undefined.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Value specifed for object binding pattern must be object coercible (undefined) (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+
+function f({}) {}
+
+assert.throws(TypeError, function() {
+  f(undefined);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-empty.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-empty.js
new file mode 100644
index 0000000000..aa44acee8f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-empty.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Runtime Semantics: BindingInitialization
+
+    ObjectBindingPattern : { }
+
+    1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+  get: function() {
+    accessCount += 1;
+  }
+});
+
+var callCount = 0;
+function f({}) {
+  assert.sameValue(accessCount, 0);
+  callCount = callCount + 1;
+};
+f(obj);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-get-value-err.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-get-value-err.js
new file mode 100644
index 0000000000..5090974f20
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-get-value-err.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-get-value-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. Let v be GetV(value, propertyName).
+    5. ReturnIfAbrupt(v).
+---*/
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+function f({ poisoned }) {}
+
+assert.throws(Test262Error, function() {
+  f(poisonedProperty);
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d3018ea20a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ arrow = () => {} }) {
+  assert.sameValue(arrow.name, 'arrow');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..fc3141f965
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+  assert.sameValue(cls.name, 'cls');
+  assert.notSameValue(xCls.name, 'xCls');
+  assert.notSameValue(xCls2.name, 'xCls2');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..0e008931e5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ cover = (function () {}), xCover = (0, function() {})  }) {
+  assert.sameValue(cover.name, 'cover');
+  assert.notSameValue(xCover.name, 'xCover');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..4c676d43fc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ fn = function () {}, xFn = function x() {} }) {
+  assert.sameValue(fn.name, 'fn');
+  assert.notSameValue(xFn.name, 'xFn');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..8d230f9944
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [generators, destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+
+---*/
+
+var callCount = 0;
+function f({ gen = function* () {}, xGen = function* x() {} }) {
+  assert.sameValue(gen.name, 'gen');
+  assert.notSameValue(xGen.name, 'xGen');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..442871f0a7
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-skipped.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+    [...]
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+  assert.sameValue(w, null);
+  assert.sameValue(x, 0);
+  assert.sameValue(y, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+  callCount = callCount + 1;
+};
+f({ w: null, x: 0, y: false, z: '' });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-throws.js
new file mode 100644
index 0000000000..6fb2199826
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-throws.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-throws.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let  defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ x = thrower() }) {}
+
+assert.throws(Test262Error, function() {
+  f({});
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-unresolvable.js
new file mode 100644
index 0000000000..f430b91bd8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x = unresolvableReference }) {}
+
+assert.throws(ReferenceError, function() {
+  f({});
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..06e423f28a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x, }) {
+  assert.sameValue(x, 23);
+  callCount = callCount + 1;
+};
+f({ x: 23 });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-list-err.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-list-err.js
new file mode 100644
index 0000000000..1b8b9b738c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-list-err.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-list-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Binding property list evaluation is interrupted by an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingPropertyList : BindingPropertyList , BindingProperty
+
+    1. Let status be the result of performing BindingInitialization for
+       BindingPropertyList using value and environment as arguments.
+    2. ReturnIfAbrupt(status).
+---*/
+var initCount = 0;
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ a, b = thrower(), c = ++initCount }) {}
+
+assert.throws(Test262Error, function() {
+  f({});
+});
+
+assert.sameValue(initCount, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-init.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..e1b46c0e04
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] }) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..087edd0332
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: [y], }) {
+  assert.sameValue(y,45);
+  callCount = callCount + 1;
+};
+f({ x: [45] });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-value-null.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-value-null.js
new file mode 100644
index 0000000000..f2dfe9c805
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary-value-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Object binding pattern with "nested" array binding pattern taking the `null` value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: [x, y, z] = [4, 5, 6] }) {}
+
+assert.throws(TypeError, function() {
+  f({ w: null });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..a9ae0983da
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: [x, y, z] = [4, 5, 6] }) {
+  assert.sameValue(x, 7);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, undefined);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f({ w: [7, undefined, ] });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-eval-err.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-eval-err.js
new file mode 100644
index 0000000000..f67a272d53
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-eval-err.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-eval-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Evaluation of property name returns an abrupt completion (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.5 Runtime Semantics: BindingInitialization
+
+    BindingProperty : PropertyName : BindingElement
+
+    1. Let P be the result of evaluating PropertyName
+    2. ReturnIfAbrupt(P).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ [thrower()]: x }) {}
+
+assert.throws(Test262Error, function() {
+  f({});
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-get-value-err.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-get-value-err.js
new file mode 100644
index 0000000000..10a30cdb80
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-get-value-err.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error thrown when accessing the corresponding property of the value object (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    1. Let v be GetV(value, propertyName).
+    2. ReturnIfAbrupt(v).
+---*/
+var initEvalCount = 0;
+var poisonedProperty = Object.defineProperty({}, 'poisoned', {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+function f({ poisoned: x = ++initEvalCount }) {}
+
+assert.throws(Test262Error, function() {
+  f(poisonedProperty);
+});
+
+assert.sameValue(initEvalCount, 0);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-skipped.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..08c0924fd2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+    [...]
+---*/
+var initCount = 0;
+function counter() {
+  initCount += 1;
+}
+
+var callCount = 0;
+function f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+  assert.sameValue(t, null);
+  assert.sameValue(v, 0);
+  assert.sameValue(x, false);
+  assert.sameValue(z, '');
+  assert.sameValue(initCount, 0);
+
+  assert.throws(ReferenceError, function() {
+    s;
+  });
+  assert.throws(ReferenceError, function() {
+    u;
+  });
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  assert.throws(ReferenceError, function() {
+    y;
+  });
+  callCount = callCount + 1;
+};
+f({ s: null, u: 0, w: false, y: '' });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-throws.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-throws.js
new file mode 100644
index 0000000000..cdcc2c0f92
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-throws.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Error thrown when evaluating the initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+---*/
+function thrower() {
+  throw new Test262Error();
+}
+
+function f({ x: y = thrower() }) {}
+
+assert.throws(Test262Error, function() {
+  f({});
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-unresolvable.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-unresolvable.js
new file mode 100644
index 0000000000..20030ee0b1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init-unresolvable.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Destructuring initializer is an unresolvable reference (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    BindingElement : BindingPattern Initializeropt
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+
+    6.2.3.1 GetValue (V)
+
+    1. ReturnIfAbrupt(V).
+    2. If Type(V) is not Reference, return V.
+    3. Let base be GetBase(V).
+    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
+---*/
+
+function f({ x: y = unresolvableReference }) {}
+
+assert.throws(ReferenceError, function() {
+  f({});
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..bac8c645c6
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y = 33 }) {
+  assert.sameValue(y, 33);
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f({ });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-trailing-comma.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..7343bb53be
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3 Destructuring Binding Patterns
+
+    ObjectBindingPattern[Yield] :
+        { }
+        { BindingPropertyList[?Yield] }
+        { BindingPropertyList[?Yield] , }
+---*/
+
+var callCount = 0;
+function f({ x: y, }) {
+  assert.sameValue(y, 23);
+
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f({ x: 23 });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..9d22fca341
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Binding as specified via property name and identifier (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+var callCount = 0;
+function f({ x: y }) {
+  assert.sameValue(y, 23);
+  assert.throws(ReferenceError, function() {
+    x;
+  });
+  callCount = callCount + 1;
+};
+f({ x: 23 });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-init.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..c6fd892b1f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-init.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       a. Let defaultValue be the result of evaluating Initializer.
+       b. Let v be GetValue(defaultValue).
+       c. ReturnIfAbrupt(v).
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+  assert.sameValue(x, 4);
+  assert.sameValue(y, 5);
+  assert.sameValue(z, 6);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f({ w: undefined });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-null.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-null.js
new file mode 100644
index 0000000000..907d817a48
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-null.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {}
+
+assert.throws(TypeError, function() {
+  f({ w: null });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-undef.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-undef.js
new file mode 100644
index 0000000000..32fcb08bec
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj-value-undef.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case
+// - src/dstr-binding/error/func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern taking the `null` value (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+function f({ w: { x, y, z } = undefined }) {}
+
+assert.throws(TypeError, function() {
+  f({ });
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..6a3dceffab
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-prop-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    [...]
+    3. If Initializer is present and v is undefined, then
+       [...]
+    4. Return the result of performing BindingInitialization for BindingPattern
+       passing v and environment as arguments.
+---*/
+
+var callCount = 0;
+function f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+  assert.sameValue(x, undefined);
+  assert.sameValue(y, undefined);
+  assert.sameValue(z, 7);
+
+  assert.throws(ReferenceError, function() {
+    w;
+  });
+  callCount = callCount + 1;
+};
+f({ w: { x: undefined, z: 7 } });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-getter.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..202ae80c82
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-getter.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+var count = 0;
+
+var callCount = 0;
+function f({...x}) {
+  assert.sameValue(count, 1);
+
+  verifyProperty(x, "v", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 2
+  });
+  callCount = callCount + 1;
+};
+f({ get v() { count++; return 2; } });
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-skip-non-enumerable.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..13cc15ec3f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+var callCount = 0;
+function f({...rest}) {
+  assert.sameValue(rest.x, undefined);
+
+  verifyProperty(rest, "a", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 3
+  });
+
+  verifyProperty(rest, "b", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 4
+  });
+  callCount = callCount + 1;
+};
+f(o);
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-val-obj.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..3a84a74a5f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-rest-val-obj.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: Rest object contains just unextracted data (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [object-rest, destructuring-binding]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+---*/
+
+var callCount = 0;
+function f({a, b, ...rest}) {
+  assert.sameValue(rest.a, undefined);
+  assert.sameValue(rest.b, undefined);
+
+  verifyProperty(rest, "x", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 1
+  });
+
+  verifyProperty(rest, "y", {
+    enumerable: true,
+    writable: true,
+    configurable: true,
+    value: 2
+  });
+  callCount = callCount + 1;
+};
+f({x: 1, y: 2, a: 5, b: 3});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/dstr/shell.js b/js/src/tests/test262/language/statements/function/dstr/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/early-body-super-call.js b/js/src/tests/test262/language/statements/function/early-body-super-call.js
new file mode 100644
index 0000000000..cd84ccbe9a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-body-super-call.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions-static-semantics-early-errors
+es6id: 14.1.2
+description: Body may not contain a "super" call
+info: |
+  It is a Syntax Error if FunctionBody Contains SuperCall is true.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function f() {
+  super();
+}
diff --git a/js/src/tests/test262/language/statements/function/early-body-super-prop.js b/js/src/tests/test262/language/statements/function/early-body-super-prop.js
new file mode 100644
index 0000000000..4ad4324620
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-body-super-prop.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions-static-semantics-early-errors
+es6id: 14.1.2
+description: Body may not contain a "super" property reference
+info: |
+  It is a Syntax Error if FunctionBody Contains SuperProperty is true.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function f() {
+  super.x;
+}
diff --git a/js/src/tests/test262/language/statements/function/early-errors/browser.js b/js/src/tests/test262/language/statements/function/early-errors/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-bad-reference.js b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-bad-reference.js
new file mode 100644
index 0000000000..d7e43cbd3c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-bad-reference.js
@@ -0,0 +1,41 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-bad-reference.case
+// - src/invalid-private-names/default/function-decl.template
+/*---
+description: bad reference in call expression (Invalid private names should throw a SyntaxError, inside function declaration)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private]
+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
+
+    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.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+function fn() { (() => {})().#x }
diff --git a/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-this.js b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-this.js
new file mode 100644
index 0000000000..eb7b2b5f8b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-call-expression-this.js
@@ -0,0 +1,41 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/call-expression-this.case
+// - src/invalid-private-names/default/function-decl.template
+/*---
+description: this evaluated in call expression (Invalid private names should throw a SyntaxError, inside function declaration)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+function fn() { (() => this)().#x }
diff --git a/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-bad-reference.js b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-bad-reference.js
new file mode 100644
index 0000000000..af2df59e63
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-bad-reference.js
@@ -0,0 +1,41 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-bad-reference.case
+// - src/invalid-private-names/default/function-decl.template
+/*---
+description: bad reference in member expression (Invalid private names should throw a SyntaxError, inside function declaration)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private]
+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
+
+    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.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+function fn() { something.#x }
diff --git a/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-this.js b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-this.js
new file mode 100644
index 0000000000..029da1500e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-errors/invalid-names-member-expression-this.js
@@ -0,0 +1,41 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/invalid-private-names/member-expression-this.case
+// - src/invalid-private-names/default/function-decl.template
+/*---
+description: this reference in member expression (Invalid private names should throw a SyntaxError, inside function declaration)
+esid: sec-static-semantics-early-errors
+features: [class-fields-private]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ScriptBody:StatementList
+      It is a Syntax Error if AllPrivateNamesValid of StatementList with an empty List
+      as an argument is false unless the source code is eval code that is being
+      processed by a direct eval.
+
+    ModuleBody:ModuleItemList
+      It is a Syntax Error if AllPrivateNamesValid of ModuleItemList with an empty List
+      as an argument is false.
+
+
+    Static Semantics: AllPrivateNamesValid
+
+    MemberExpression : MemberExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+    CallExpression : CallExpression . PrivateName
+
+    1. If StringValue of PrivateName is in names, return true.
+    2. Return false.
+
+---*/
+
+
+$DONOTEVALUATE();
+
+function fn() { this.#x }
diff --git a/js/src/tests/test262/language/statements/function/early-errors/shell.js b/js/src/tests/test262/language/statements/function/early-errors/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/early-params-super-call.js b/js/src/tests/test262/language/statements/function/early-params-super-call.js
new file mode 100644
index 0000000000..2d107196eb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-params-super-call.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions-static-semantics-early-errors
+es6id: 14.1.2
+description: Parameters may not contain a "super" call
+info: |
+  It is a Syntax Error if FormalParameters Contains SuperProperty is true.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function f(x = super()) {}
diff --git a/js/src/tests/test262/language/statements/function/early-params-super-prop.js b/js/src/tests/test262/language/statements/function/early-params-super-prop.js
new file mode 100644
index 0000000000..2be0153bdf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/early-params-super-prop.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions-static-semantics-early-errors
+es6id: 14.1.2
+description: Parameters may not contain a "super" property reference
+info: |
+  It is a Syntax Error if FunctionBody Contains SuperProperty is true.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function f(x = super.x) {}
diff --git a/js/src/tests/test262/language/statements/function/enable-strict-via-body.js b/js/src/tests/test262/language/statements/function/enable-strict-via-body.js
new file mode 100644
index 0000000000..7a979deaa8
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/enable-strict-via-body.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13;
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-10-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the code of this FunctionBody with an inner function contains a
+    Use Strict Directive
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_0_10_fun() {
+    function _13_0_10_inner() {
+        "use strict";
+        eval = 42;
+    }
+}
diff --git a/js/src/tests/test262/language/statements/function/enable-strict-via-outer-body.js b/js/src/tests/test262/language/statements/function/enable-strict-via-outer-body.js
new file mode 100644
index 0000000000..1183ffc0d5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/enable-strict-via-outer-body.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13;
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-11-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    the code of this FunctionBody with an inner function which is in
+    strict mode
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_0_11_fun() {
+    "use strict";
+    function _13_0_11_inner() {
+        eval = 42;
+    }
+}
diff --git a/js/src/tests/test262/language/statements/function/enable-strict-via-outer-script-strict.js b/js/src/tests/test262/language/statements/function/enable-strict-via-outer-script-strict.js
new file mode 100644
index 0000000000..050860b245
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/enable-strict-via-outer-script-strict.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13;
+    The production FunctionBody : SourceElementsopt is evaluated as follows:
+es5id: 13.0-9-s
+description: >
+    Strict Mode - SourceElements is evaluated as strict mode code when
+    a FunctionDeclaration that is contained in strict mode code has an
+    inner function
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+var _13_0_9_fun = function () {
+    function _13_0_9_inner() {
+        eval = 42;
+    }
+};
diff --git a/js/src/tests/test262/language/statements/function/eval-var-scope-syntax-err.js b/js/src/tests/test262/language/statements/function/eval-var-scope-syntax-err.js
new file mode 100644
index 0000000000..00e562e634
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/eval-var-scope-syntax-err.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/eval-var-scope-syntax-err.case
+// - src/function-forms/error-no-strict/func-decl.template
+/*---
+description: sloppy direct eval in params introduces var (function declaration in sloppy code)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    
+    Runtime Semantics: IteratorBindingInitialization
+    FormalParameter : BindingElement
+
+    1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment.
+
+---*/
+
+var callCount = 0;
+function f(a = eval("var a = 42")) {
+  
+  callCount = callCount + 1;
+}
+assert.throws(SyntaxError, function() {
+  f();
+});
+assert.sameValue(callCount, 0, 'function body not evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b1/browser.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-arguments.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-arguments.js
new file mode 100644
index 0000000000..88c54bd38f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-arguments.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/forbidden-ext-direct-access-prop-arguments.case
+// - src/function-forms/forbidden-extensions/bullet-one/func-decl-strict.template
+/*---
+description: Forbidden extension, f.arguments (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    ECMAScript function objects defined using syntactic constructors in strict mode code must
+    not be created with own properties named "caller" or "arguments". Such own properties also
+    must not be created for function objects defined using an ArrowFunction, MethodDefinition,
+    GeneratorDeclaration, GeneratorExpression, AsyncGeneratorDeclaration, AsyncGeneratorExpression,
+    ClassDeclaration, ClassExpression, AsyncFunctionDeclaration, AsyncFunctionExpression, or
+    AsyncArrowFunction regardless of whether the definition is contained in strict mode code.
+    Built-in functions, strict functions created using the Function constructor, generator functions
+    created using the Generator constructor, async functions created using the AsyncFunction
+    constructor, and functions created using the bind method also must not be created with such own
+    properties.
+
+---*/
+
+var callCount = 0;
+function f() {
+  "use strict";
+  assert.sameValue(f.hasOwnProperty("arguments"), false);
+  callCount++;
+}
+
+f();
+assert.sameValue(callCount, 1, 'function body evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-caller.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-caller.js
new file mode 100644
index 0000000000..6a5038a200
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/cls-expr-meth-forbidden-ext-direct-access-prop-caller.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/forbidden-ext-direct-access-prop-caller.case
+// - src/function-forms/forbidden-extensions/bullet-one/func-decl-strict.template
+/*---
+description: Forbidden extension, o.caller (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    ECMAScript function objects defined using syntactic constructors in strict mode code must
+    not be created with own properties named "caller" or "arguments". Such own properties also
+    must not be created for function objects defined using an ArrowFunction, MethodDefinition,
+    GeneratorDeclaration, GeneratorExpression, AsyncGeneratorDeclaration, AsyncGeneratorExpression,
+    ClassDeclaration, ClassExpression, AsyncFunctionDeclaration, AsyncFunctionExpression, or
+    AsyncArrowFunction regardless of whether the definition is contained in strict mode code.
+    Built-in functions, strict functions created using the Function constructor, generator functions
+    created using the Generator constructor, async functions created using the AsyncFunction
+    constructor, and functions created using the bind method also must not be created with such own
+    properties.
+
+---*/
+
+var callCount = 0;
+function f() {
+  "use strict";
+  assert.sameValue(f.hasOwnProperty("caller"), false);
+  callCount++;
+}
+
+f();
+assert.sameValue(callCount, 1, 'function body evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b1/shell.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b1/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/browser.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js
new file mode 100644
index 0000000000..3a981a7dfe
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-get.case
+// - src/function-forms/forbidden-extensions/bullet-two/func-decl.template
+/*---
+description: Forbidden extension, o.caller (function declaration)
+esid: sec-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    If an implementation extends any function object with an own property named "caller" the value of
+    that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function
+    object. If it is an accessor property, the function that is the value of the property's [[Get]]
+    attribute must never return a strict function when called.
+
+---*/
+var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol();
+function inner() {
+  // This property may exist, but is forbidden from having a value that is a strict function object
+  return inner.hasOwnProperty("caller")
+    ? inner.caller
+    : CALLER_OWN_PROPERTY_DOES_NOT_EXIST;
+}
+
+var callCount = 0;
+function f() {
+  "use strict";
+  // This and the following conditional value is set in the test's .case file.
+  // For every test that has a "true" value here, there is a
+  // corresponding test that has a "false" value here.
+  // They are generated from two different case files, which use
+  // the same templates.
+  let descriptor = Object.getOwnPropertyDescriptor(inner, "caller");
+  if (descriptor && descriptor.configurable && true) {
+    Object.defineProperty(inner, "caller", {get(){return 1}});
+  }
+  var result = inner();
+  if (descriptor && descriptor.configurable && true) {
+    assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.');
+  }
+
+  // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from
+  // forbidden-ext-indirect-access-prop-caller.case
+  //
+  // If the function object "inner" has an own property
+  // named "caller", then its value will be returned.
+  //
+  // If the function object "inner" DOES NOT have an
+  // own property named "caller", then the symbol
+  // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned.
+  if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) {
+    assert.notSameValue(result, f);
+  }
+
+  callCount++;
+}
+f();
+assert.sameValue(callCount, 1, 'body evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js
new file mode 100644
index 0000000000..2e50f86d61
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-value.case
+// - src/function-forms/forbidden-extensions/bullet-two/func-decl.template
+/*---
+description: Forbidden extension, o.caller (function declaration)
+esid: sec-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    If an implementation extends any function object with an own property named "caller" the value of
+    that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function
+    object. If it is an accessor property, the function that is the value of the property's [[Get]]
+    attribute must never return a strict function when called.
+
+---*/
+var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol();
+function inner() {
+  // This property may exist, but is forbidden from having a value that is a strict function object
+  return inner.hasOwnProperty("caller")
+    ? inner.caller
+    : CALLER_OWN_PROPERTY_DOES_NOT_EXIST;
+}
+
+var callCount = 0;
+function f() {
+  "use strict";
+  // This and the following conditional value is set in the test's .case file.
+  // For every test that has a "true" value here, there is a
+  // corresponding test that has a "false" value here.
+  // They are generated from two different case files, which use
+  // the same templates.
+  let descriptor = Object.getOwnPropertyDescriptor(inner, "caller");
+  if (descriptor && descriptor.configurable && true) {
+    Object.defineProperty(inner, "caller", {value: 1});
+  }
+  var result = inner();
+  if (descriptor && descriptor.configurable && true) {
+    assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.');
+  }
+
+  // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from
+  // forbidden-ext-indirect-access-prop-caller.case
+  //
+  // If the function object "inner" has an own property
+  // named "caller", then its value will be returned.
+  //
+  // If the function object "inner" DOES NOT have an
+  // own property named "caller", then the symbol
+  // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned.
+  if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) {
+    assert.notSameValue(result, f);
+  }
+
+  callCount++;
+}
+f();
+assert.sameValue(callCount, 1, 'body evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-prop-caller.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-prop-caller.js
new file mode 100644
index 0000000000..c00df08a17
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/func-decl-forbidden-ext-indirect-access-prop-caller.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/forbidden-ext-indirect-access-prop-caller.case
+// - src/function-forms/forbidden-extensions/bullet-two/func-decl.template
+/*---
+description: Forbidden extension, o.caller (function declaration)
+esid: sec-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    If an implementation extends any function object with an own property named "caller" the value of
+    that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function
+    object. If it is an accessor property, the function that is the value of the property's [[Get]]
+    attribute must never return a strict function when called.
+
+---*/
+var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol();
+function inner() {
+  // This property may exist, but is forbidden from having a value that is a strict function object
+  return inner.hasOwnProperty("caller")
+    ? inner.caller
+    : CALLER_OWN_PROPERTY_DOES_NOT_EXIST;
+}
+
+var callCount = 0;
+function f() {
+  "use strict";
+  // This and the following conditional value is set in the test's .case file.
+  // For every test that has a "true" value here, there is a
+  // corresponding test that has a "false" value here.
+  // They are generated from two different case files, which use
+  // the same templates.
+  let descriptor = Object.getOwnPropertyDescriptor(inner, "caller");
+  if (descriptor && descriptor.configurable && false) {
+    Object.defineProperty(inner, "caller", {});
+  }
+  var result = inner();
+  if (descriptor && descriptor.configurable && false) {
+    assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.');
+  }
+
+  // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from
+  // forbidden-ext-indirect-access-prop-caller.case
+  //
+  // If the function object "inner" has an own property
+  // named "caller", then its value will be returned.
+  //
+  // If the function object "inner" DOES NOT have an
+  // own property named "caller", then the symbol
+  // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned.
+  if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) {
+    assert.notSameValue(result, f);
+  }
+
+  callCount++;
+}
+f();
+assert.sameValue(callCount, 1, 'body evaluated');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/b2/shell.js b/js/src/tests/test262/language/statements/function/forbidden-ext/b2/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/browser.js b/js/src/tests/test262/language/statements/function/forbidden-ext/browser.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/forbidden-ext/shell.js b/js/src/tests/test262/language/statements/function/forbidden-ext/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/invalid-2-names.js b/js/src/tests/test262/language/statements/function/invalid-2-names.js
new file mode 100644
index 0000000000..06ee6ac865
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-2-names.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0-1
+description: >
+    13.0 - multiple names in one function declaration is not allowed,
+    two function names
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function x, y() {}
diff --git a/js/src/tests/test262/language/statements/function/invalid-3-names.js b/js/src/tests/test262/language/statements/function/invalid-3-names.js
new file mode 100644
index 0000000000..24c29baa3e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-3-names.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0-2
+description: >
+    13.0 - multiple names in one function declaration is not allowed,
+    three function names
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function x,y,z(){}
diff --git a/js/src/tests/test262/language/statements/function/invalid-function-body-1.js b/js/src/tests/test262/language/statements/function/invalid-function-body-1.js
new file mode 100644
index 0000000000..ebc94ad540
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-function-body-1.js
@@ -0,0 +1,18 @@
+// |reftest| error:SyntaxError
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The FunctionBody must be SourceElements
+es5id: 13_A7_T2
+description: >
+    Inserting elements that is different from SourceElements into the
+    FunctionBody
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function __func(){/ ABC}
diff --git a/js/src/tests/test262/language/statements/function/invalid-function-body-2.js b/js/src/tests/test262/language/statements/function/invalid-function-body-2.js
new file mode 100644
index 0000000000..3078d4f403
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-function-body-2.js
@@ -0,0 +1,18 @@
+// |reftest| error:SyntaxError
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The FunctionBody must be SourceElements
+es5id: 13_A7_T2
+description: >
+    Inserting elements that is different from SourceElements into the
+    FunctionBody
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function __func(){&1}
diff --git a/js/src/tests/test262/language/statements/function/invalid-function-body-3.js b/js/src/tests/test262/language/statements/function/invalid-function-body-3.js
new file mode 100644
index 0000000000..785a5b33cf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-function-body-3.js
@@ -0,0 +1,18 @@
+// |reftest| error:SyntaxError
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The FunctionBody must be SourceElements
+es5id: 13_A7_T2
+description: >
+    Inserting elements that is different from SourceElements into the
+    FunctionBody
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function __func(){# ABC}
diff --git a/js/src/tests/test262/language/statements/function/invalid-name-dot.js b/js/src/tests/test262/language/statements/function/invalid-name-dot.js
new file mode 100644
index 0000000000..9a12bd3a96
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-name-dot.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0-3
+description: >
+    13.0 - property names in function definition is not allowed, add a
+    new property into object
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function obj.tt() {}
diff --git a/js/src/tests/test262/language/statements/function/invalid-name-two-dots.js b/js/src/tests/test262/language/statements/function/invalid-name-two-dots.js
new file mode 100644
index 0000000000..19dadd5fdb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/invalid-name-two-dots.js
@@ -0,0 +1,17 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.0-4
+description: >
+    13.0 - multiple names in one function declaration is not allowed,
+    add a new property into a property which is a object
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function obj.tt.ss() {}
diff --git a/js/src/tests/test262/language/statements/function/length-dflt.js b/js/src/tests/test262/language/statements/function/length-dflt.js
new file mode 100644
index 0000000000..e778ff2b9f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/length-dflt.js
@@ -0,0 +1,62 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.1.6
+description: >
+  Default parameters' effect on function length
+info: |
+  Function length is counted by the non initialized parameters in the left.
+
+  9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
+
+  [...]
+  2. Let len be the ExpectedArgumentCount of ParameterList.
+  3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]:
+     len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+  [...]
+
+  FormalsList : FormalParameter
+
+    1. If HasInitializer of FormalParameter is true return 0
+    2. Return 1.
+
+  FormalsList : FormalsList , FormalParameter
+
+    1. Let count be the ExpectedArgumentCount of FormalsList.
+    2. If HasInitializer of FormalsList is true or HasInitializer of
+    FormalParameter is true, return count.
+    3. Return count+1.
+features: [default-parameters]
+includes: [propertyHelper.js]
+---*/
+
+
+function f1(x = 42) {}
+
+assert.sameValue(f1.length, 0, 'FormalsList: x = 42');
+verifyNotEnumerable(f1, 'length');
+verifyNotWritable(f1, 'length');
+verifyConfigurable(f1, 'length');
+
+function f2(x = 42, y) {}
+
+assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y');
+verifyNotEnumerable(f2, 'length');
+verifyNotWritable(f2, 'length');
+verifyConfigurable(f2, 'length');
+
+function f3(x, y = 42) {}
+
+assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42');
+verifyNotEnumerable(f3, 'length');
+verifyNotWritable(f3, 'length');
+verifyConfigurable(f3, 'length');
+
+function f4(x, y = 42, z) {}
+
+assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z');
+verifyNotEnumerable(f4, 'length');
+verifyNotWritable(f4, 'length');
+verifyConfigurable(f4, 'length');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/line-terminator.js b/js/src/tests/test262/language/statements/function/line-terminator.js
new file mode 100644
index 0000000000..f841d2e85e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/line-terminator.js
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Any separators are admitted between declaration chunks
+es5id: 13_A16
+description: Inserting separators between declaration chunks
+---*/
+
+function
+x
+(
+)
+{
+}
+;
+
+x();
+
+function                                                    y                                   (                                          )                                              {};
+
+y();
+
+function
+
+z
+
+(
+
+)
+
+{
+    
+}
+
+;
+
+z();
+
+// The following function expression is expressed with literal unicode
+// characters so that parsers may benefit from this test. The included code
+// points are as follows:
+//
+// "function\u0009\u2029w(\u000C)\u00A0{\u000D}"
+
+function	
w() {
}
+
+w();
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/name-arguments-non-strict.js b/js/src/tests/test262/language/statements/function/name-arguments-non-strict.js
new file mode 100644
index 0000000000..97deb71691
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-arguments-non-strict.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-3-7
+description: >
+    arguments allowed as function identifier in non-strict function
+    declaration
+flags: [noStrict]
+---*/
+
+function arguments (){}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/name-arguments-strict-body.js b/js/src/tests/test262/language/statements/function/name-arguments-strict-body.js
new file mode 100644
index 0000000000..e91e3fe4de
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-arguments-strict-body.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-40-s
+description: >
+    StrictMode - SyntaxError is thrown if 'arguments' occurs as the
+    Identifier of a FunctionDeclaration whose FunctionBody is
+    contained in strict code
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function arguments() { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/name-arguments-strict-strict.js b/js/src/tests/test262/language/statements/function/name-arguments-strict-strict.js
new file mode 100644
index 0000000000..40465ca380
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-arguments-strict-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-13-s
+description: >
+    StrictMode - SyntaxError is thrown if 'arguments' occurs as the
+    function name of a FunctionDeclaration in strict mode
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function arguments() { }
diff --git a/js/src/tests/test262/language/statements/function/name-eval-non-strict.js b/js/src/tests/test262/language/statements/function/name-eval-non-strict.js
new file mode 100644
index 0000000000..d1d8f2c358
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-eval-non-strict.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-3-1
+description: >
+    eval allowed as function identifier in non-strict function
+    declaration
+flags: [noStrict]
+---*/
+
+function eval(){}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/name-eval-strict-body.js b/js/src/tests/test262/language/statements/function/name-eval-strict-body.js
new file mode 100644
index 0000000000..5a4d885cba
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-eval-strict-body.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-36-s
+description: >
+    StrictMode - SyntaxError is thrown if 'eval' occurs as the
+    function name of a FunctionDeclaration whose FunctionBody is in
+    strict mode
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function eval() { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/name-eval-strict-strict.js b/js/src/tests/test262/language/statements/function/name-eval-strict-strict.js
new file mode 100644
index 0000000000..a76ad3cb4e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-eval-strict-strict.js
@@ -0,0 +1,19 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-11-s
+description: >
+    StrictMode - SyntaxError is thrown if 'eval' occurs as the
+    function name of a FunctionDeclaration in strict mode
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function eval() { }
diff --git a/js/src/tests/test262/language/statements/function/name-eval-stricteval.js b/js/src/tests/test262/language/statements/function/name-eval-stricteval.js
new file mode 100644
index 0000000000..216b38e314
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-eval-stricteval.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-35-s
+description: >
+    StrictMode - SyntaxError is thrown if 'eval' occurs as the
+    function name of a FunctionDeclaration in strict eval code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict'; function eval() { };")
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/name-unicode.js b/js/src/tests/test262/language/statements/function/name-unicode.js
new file mode 100644
index 0000000000..da927b78b1
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name-unicode.js
@@ -0,0 +1,20 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Unicode symbols in function name are allowed
+es5id: 13_A14
+description: Defining function name with unicode symbols
+---*/
+
+var funcA = eval("function __func\u0041(__arg){return __arg;}; __funcA");
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (typeof funcA !== "function") {
+    throw new Test262Error('#1: unicode symbols in function name are allowed');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/name.js b/js/src/tests/test262/language/statements/function/name.js
new file mode 100644
index 0000000000..93338dfdd9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/name.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 14.1.19
+description: Assignment of function `name` attribute
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    1. Let name be StringValue of BindingIdentifier.
+    2. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody, scope, strict).
+    3. Perform MakeConstructor(F).
+    4. Perform SetFunctionName(F, name).
+    5. Return F.
+includes: [propertyHelper.js]
+---*/
+
+function func() {}
+
+assert.sameValue(func.name, 'func');
+verifyNotEnumerable(func, 'name');
+verifyNotWritable(func, 'name');
+verifyConfigurable(func, 'name');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/object-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/function/object-destructuring-param-strict-body.js
new file mode 100644
index 0000000000..149dd218e2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/object-destructuring-param-strict-body.js
@@ -0,0 +1,134 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/object-destructuring-param-strict-body.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: ObjectBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [rest-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.4 Static Semantics: IsSimpleParameterList
+
+    BindingElement : BindingPattern
+
+    1. Return false.
+
+    14.1.2 Static Semantics: Early Errors
+
+    FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+    FunctionDeclaration : function ( FormalParameters ) { FunctionBody }
+    FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.2.1 Static Semantics: Early Errors
+
+    ArrowFunction : ArrowParameters => ConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and
+      IsSimpleParameterList of ArrowParameters is false.
+
+    14.3.1 Static Semantics: Early Errors
+
+    MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of PropertySetParameterList is false.
+
+    14.4.1 Static Semantics: Early Errors
+
+    GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+    GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+    GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    14.5.1 Static Semantics: Early Errors
+
+    AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.7.1 Static Semantics: Early Errors
+
+    AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.8.1 Static Semantics: Early Errors
+
+    AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and
+      IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false.
+
+---*/
+$DONOTEVALUATE();
+
+function f({property}) {
+  "use strict";
+}
diff --git a/js/src/tests/test262/language/statements/function/param-arguments-non-strict.js b/js/src/tests/test262/language/statements/function/param-arguments-non-strict.js
new file mode 100644
index 0000000000..a2560e4ddc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-arguments-non-strict.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-2-5
+description: >
+    arguments allowed as formal parameter name of a non-strict
+    function declaration
+flags: [noStrict]
+---*/
+
+function foo(arguments){}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/param-arguments-strict-body.js b/js/src/tests/test262/language/statements/function/param-arguments-strict-body.js
new file mode 100644
index 0000000000..00f6f5eaff
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-arguments-strict-body.js
@@ -0,0 +1,23 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-20-s
+description: >
+    StrictMode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration when FuctionBody is strict code
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_20_fun(arguments) { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/param-arguments-strict-strict.js b/js/src/tests/test262/language/statements/function/param-arguments-strict-strict.js
new file mode 100644
index 0000000000..d44504efe9
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-arguments-strict-strict.js
@@ -0,0 +1,24 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-3-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'arguments'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_3_fun(arguments) { }
diff --git a/js/src/tests/test262/language/statements/function/param-dflt-yield-non-strict.js b/js/src/tests/test262/language/statements/function/param-dflt-yield-non-strict.js
new file mode 100644
index 0000000000..88e2dfa599
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-dflt-yield-non-strict.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+  The `yield` token is interpreted as an IdentifierReference within a generator
+  and outside of strict mode
+info: |
+  FunctionDeclaration[Yield, Default] :
+    function BindingIdentifier[?Yield] ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [noStrict]
+---*/
+
+var yield = 23;
+var paramValue;
+
+function *g() {
+  function f(x = yield) {
+    paramValue = x;
+  }
+
+  f();
+}
+
+g().next();
+
+assert.sameValue(paramValue, 23);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/param-dflt-yield-strict-strict.js b/js/src/tests/test262/language/statements/function/param-dflt-yield-strict-strict.js
new file mode 100644
index 0000000000..fbe3a93199
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-dflt-yield-strict-strict.js
@@ -0,0 +1,27 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-function-definitions
+es6id: 14.1
+description: >
+  The `yield` token is interpreted as an IdentifierReference within a generator
+  and outside of strict mode
+info: |
+  FunctionDeclaration[Yield, Default] :
+    function BindingIdentifier[?Yield] ( FormalParameters ) { FunctionBody }
+features: [generators, default-parameters]
+flags: [onlyStrict]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function *g() {
+  function f(x = yield) {
+    paramValue = x;
+  }
+}
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-non-strict.js b/js/src/tests/test262/language/statements/function/param-duplicated-non-strict.js
new file mode 100644
index 0000000000..af154b8f3a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-non-strict.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-1-1
+description: >
+    Duplicate identifier allowed in non-strict function declaration
+    parameter list
+flags: [noStrict]
+---*/
+
+function foo(a,a){}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-1-strict.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-1-strict.js
new file mode 100644
index 0000000000..f441c2c604
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-1-strict.js
@@ -0,0 +1,24 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-5-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is declared in
+    'strict mode' using a FunctionDeclaration and the function has two
+    identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_5_fun(param, param) { }
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-2-strict.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-2-strict.js
new file mode 100644
index 0000000000..6aac7f99d0
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-2-strict.js
@@ -0,0 +1,25 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-6-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created in
+    'strict mode' using a FunctionDeclaration and the function has two
+    identical parameters, which are separated by a unique parameter
+    name
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_6_fun(param1, param2, param1) { }
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-3-strict.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-3-strict.js
new file mode 100644
index 0000000000..8fed56b53f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-3-strict.js
@@ -0,0 +1,24 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-7-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created in
+    'strict mode' using a FunctionDeclaration and the function has
+    three identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_7_fun(param, param, param) { }
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-1.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-1.js
new file mode 100644
index 0000000000..80a96a8223
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-1.js
@@ -0,0 +1,23 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-24-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration whose FunctionBody is contained in strict
+    code and the function has two identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_24_fun(param, param) { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-2.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-2.js
new file mode 100644
index 0000000000..e7aa120deb
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-2.js
@@ -0,0 +1,24 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-26-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration whose FunctionBody is contained in strict
+    code and the function has two identical parameters which are
+    separated by a unique parameter name
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_26_fun(param1, param2, param1) { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-3.js b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-3.js
new file mode 100644
index 0000000000..436895af98
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-duplicated-strict-body-3.js
@@ -0,0 +1,23 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
+    FunctionDeclaration or FunctionExpression.
+es5id: 13.1-28-s
+description: >
+    Strict Mode - SyntaxError is thrown if a function is created using
+    a FunctionDeclaration whose FunctionBody is contained in strict
+    code and the function has three identical parameters
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_28_fun(param, param, param) { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/param-eval-non-strict-is-correct-value.js b/js/src/tests/test262/language/statements/function/param-eval-non-strict-is-correct-value.js
new file mode 100644
index 0000000000..9ff385873a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-eval-non-strict-is-correct-value.js
@@ -0,0 +1,23 @@
+// Copyright (c) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-strict-mode-of-ecmascript
+description: >
+    eval allowed as formal parameter name of a non-strict function declaration
+flags: [noStrict]
+---*/
+
+let exprCallCount = 0;
+let evalValue = {};
+
+function foo(eval) {
+  assert.sameValue(eval, evalValue);
+  exprCallCount += 1;
+}
+
+foo(evalValue);
+
+assert.sameValue(exprCallCount, 1);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/param-eval-non-strict.js b/js/src/tests/test262/language/statements/function/param-eval-non-strict.js
new file mode 100644
index 0000000000..71c2e5865b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-eval-non-strict.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 13.1-2-1
+description: >
+    eval allowed as formal parameter name of a non-strict function
+    declaration
+flags: [noStrict]
+---*/
+
+function foo(eval){};
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/param-eval-strict-body.js b/js/src/tests/test262/language/statements/function/param-eval-strict-body.js
new file mode 100644
index 0000000000..f98ff29772
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-eval-strict-body.js
@@ -0,0 +1,23 @@
+// |reftest| error:SyntaxError
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-16-s
+description: >
+    StrictMode - SyntaxError is thrown if the identifier 'eval'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration when FuctionBody is strict code
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [noStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_16_fun(eval) { 'use strict'; }
diff --git a/js/src/tests/test262/language/statements/function/param-eval-strict-strict.js b/js/src/tests/test262/language/statements/function/param-eval-strict-strict.js
new file mode 100644
index 0000000000..870befd911
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-eval-strict-strict.js
@@ -0,0 +1,24 @@
+// |reftest| error:SyntaxError
+'use strict';
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1;
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-1-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'eval'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration
+negative:
+  phase: parse
+  type: SyntaxError
+flags: [onlyStrict]
+---*/
+
+$DONOTEVALUATE();
+
+function _13_1_1_fun(eval) { }
diff --git a/js/src/tests/test262/language/statements/function/param-eval-stricteval.js b/js/src/tests/test262/language/statements/function/param-eval-stricteval.js
new file mode 100644
index 0000000000..5d956fdc2c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/param-eval-stricteval.js
@@ -0,0 +1,22 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    Refer 13.1; 
+    It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs within a FormalParameterList
+    of a strict mode FunctionDeclaration or FunctionExpression.
+es5id: 13.1-15-s
+description: >
+    Strict Mode - SyntaxError is thrown if the identifier 'eval'
+    appears within a FormalParameterList of a strict mode
+    FunctionDeclaration in strict eval code
+flags: [noStrict]
+---*/
+
+
+assert.throws(SyntaxError, function() {
+            eval("'use strict';function _13_1_15_fun(eval) { }");
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/params-dflt-args-unmapped.js b/js/src/tests/test262/language/statements/function/params-dflt-args-unmapped.js
new file mode 100644
index 0000000000..83269032e4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/params-dflt-args-unmapped.js
@@ -0,0 +1,84 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments. 
+---*/
+
+var callCount = 0;
+function f(x, _ = 0) {
+  assert.sameValue(x, undefined, 'parameter binding value (initial)');
+  assert.sameValue(
+    arguments[0], undefined, 'arguments property value (initial)'
+  );
+
+  arguments[0] = 1;
+
+  assert.sameValue(
+    x, undefined, 'parameter binding value (after arguments modification)'
+  );
+  assert.sameValue(
+    arguments[0], 1, 'arguments property value (after arguments modification)'
+  );
+
+  x = 2;
+
+  assert.sameValue(
+    x, 2, 'parameter binding value (after parameter binding modification)'
+  );
+  assert.sameValue(
+    arguments[0],
+    1,
+    'arguments property value (after parameter binding modification)'
+  );
+  callCount = callCount + 1;
+}
+
+f();
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js b/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js
new file mode 100644
index 0000000000..522c276e85
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/params-dflt-ref-arguments.js
@@ -0,0 +1,63 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Referencing the arguments object from a default parameter (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+es6id: 14.1.19
+features: [default-parameters]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+---*/
+
+var callCount = 0;
+function f(x = arguments[2], y = arguments[3], z) {
+  assert.sameValue(x, 'third', 'first parameter');
+  assert.sameValue(y, 'fourth', 'second parameter');
+  assert.sameValue(z, 'third', 'third parameter');
+  callCount = callCount + 1;
+}
+
+f(undefined, undefined, 'third', 'fourth');
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/params-trailing-comma-multiple.js b/js/src/tests/test262/language/statements/function/params-trailing-comma-multiple.js
new file mode 100644
index 0000000000..82db4f96c4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/params-trailing-comma-multiple.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/params-trailing-comma-multiple.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: A trailing comma should not increase the respective length, using multiple parameters (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Trailing comma in the parameters list
+
+    14.1 Function Definitions
+
+    FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
+---*/
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(a, b,) {
+  assert.sameValue(a, 42);
+  assert.sameValue(b, 39);
+  callCount = callCount + 1;
+}
+
+ref(42, 39, 1);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(ref.length, 2, 'length is properly set');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/params-trailing-comma-single.js b/js/src/tests/test262/language/statements/function/params-trailing-comma-single.js
new file mode 100644
index 0000000000..cd55376ce2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/params-trailing-comma-single.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/params-trailing-comma-single.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: A trailing comma should not increase the respective length, using a single parameter (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Trailing comma in the parameters list
+
+    14.1 Function Definitions
+
+    FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] ,
+---*/
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(a,) {
+  assert.sameValue(a, 42);
+  callCount = callCount + 1;
+}
+
+ref(42, 39);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+assert.sameValue(ref.length, 1, 'length is properly set');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/rest-param-strict-body.js b/js/src/tests/test262/language/statements/function/rest-param-strict-body.js
new file mode 100644
index 0000000000..ef15c27e73
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/rest-param-strict-body.js
@@ -0,0 +1,134 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/rest-param-strict-body.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: RestParameter and Use Strict Directive are not allowed to coexist for the same function. (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [rest-parameters]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    14.1.13 Static Semantics: IsSimpleParameterList
+
+    FormalParameters : FormalParameterList , FunctionRestParameter
+
+    1. Return false.
+
+    14.1.2 Static Semantics: Early Errors
+
+    FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+    FunctionDeclaration : function ( FormalParameters ) { FunctionBody }
+    FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.2.1 Static Semantics: Early Errors
+
+    ArrowFunction : ArrowParameters => ConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and
+      IsSimpleParameterList of ArrowParameters is false.
+
+    14.3.1 Static Semantics: Early Errors
+
+    MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
+      IsSimpleParameterList of PropertySetParameterList is false.
+
+    14.4.1 Static Semantics: Early Errors
+
+    GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+    GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+    GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    14.5.1 Static Semantics: Early Errors
+
+    AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody }
+    AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.7.1 Static Semantics: Early Errors
+
+    AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of UniqueFormalParameters is false.
+
+    AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody }
+    AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and
+      IsSimpleParameterList of FormalParameters is false.
+
+    14.8.1 Static Semantics: Early Errors
+
+    AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
+
+    - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and
+      IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false.
+
+---*/
+$DONOTEVALUATE();
+
+function f(a,...rest) {
+  "use strict";
+}
diff --git a/js/src/tests/test262/language/statements/function/rest-params-trailing-comma-early-error.js b/js/src/tests/test262/language/statements/function/rest-params-trailing-comma-early-error.js
new file mode 100644
index 0000000000..0b40bf27cf
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/rest-params-trailing-comma-early-error.js
@@ -0,0 +1,59 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/rest-params-trailing-comma-early-error.case
+// - src/function-forms/syntax/func-decl.template
+/*---
+description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    Trailing comma in the parameters list
+
+    14.1 Function Definitions
+
+    FormalParameters[Yield, Await] :
+        [empty]
+        FunctionRestParameter[?Yield, ?Await]
+        FormalParameterList[?Yield, ?Await]
+        FormalParameterList[?Yield, ?Await] ,
+        FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await]
+---*/
+$DONOTEVALUATE();
+
+function f(...a,) {
+  
+}
diff --git a/js/src/tests/test262/language/statements/function/scope-body-lex-distinct.js b/js/src/tests/test262/language/statements/function/scope-body-lex-distinct.js
new file mode 100644
index 0000000000..6a7fb51413
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-body-lex-distinct.js
@@ -0,0 +1,55 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    Creation of new lexical environment (distinct from the variable
+    environment) for the function body outside of strict mode
+info: |
+    [...]
+    29. If strict is false, then
+        a. Let lexEnv be NewDeclarativeEnvironment(varEnv).
+        b. NOTE: Non-strict functions use a separate lexical Environment Record
+           for top-level lexical declarations so that a direct eval can
+           determine whether any var scoped declarations introduced by the eval
+           code conflict with pre-existing top-level lexically scoped
+           declarations.  This is not needed for strict functions because a
+           strict direct eval always places all declarations into a new
+           Environment Record.
+    [...]
+
+    18.2.1.3 Runtime Semantics: EvalDeclarationInstantiation
+
+    [...]
+    5. If strict is false, then
+       [...]
+       b. Let thisLex be lexEnv.
+       c. Assert: The following loop will terminate.
+       d. Repeat while thisLex is not the same as varEnv,
+          i. Let thisEnvRec be thisLex's EnvironmentRecord.
+          ii. If thisEnvRec is not an object Environment Record, then
+              1. NOTE: The environment of with statements cannot contain any
+                 lexical declaration so it doesn't need to be checked for
+                 var/let hoisting conflicts.
+              2. For each name in varNames, do
+                 a. If thisEnvRec.HasBinding(name) is true, then
+                    i. Throw a SyntaxError exception.
+                    ii. NOTE: Annex B.3.5 defines alternate semantics for the
+                        above step.
+                 b. NOTE: A direct eval will not hoist var declaration over a
+                    like-named lexical declaration.
+          iii. Let thisLex be thisLex's outer environment reference.
+flags: [noStrict]
+features: [let]
+---*/
+
+function f() {
+  let x;
+  eval('var x;');
+}
+
+assert.throws(SyntaxError, function() {
+  f();
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-param-elem-var-close.js b/js/src/tests/test262/language/statements/function/scope-param-elem-var-close.js
new file mode 100644
index 0000000000..4917660fe5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-param-elem-var-close.js
@@ -0,0 +1,33 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    sloppy direct evals in params introduce vars
+info: |
+    [...]
+    20. Else,
+      a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+      b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+      c. Let env be NewDeclarativeEnvironment(calleeEnv).
+      d. Let envRec be env's EnvironmentRecord.
+    [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probe1, probe2, probeBody;
+
+function f(
+    _ = (eval('var x = "inside";'), probe1 = function() { return x; }),
+    __ = probe2 = function() { return x; }
+  ) {
+  probeBody = function() { return x; };
+}
+f();
+
+assert.sameValue(probe1(), 'inside');
+assert.sameValue(probe2(), 'inside');
+assert.sameValue(probeBody(), 'inside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
new file mode 100644
index 0000000000..fa797f651b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    sloppy direct evals in params introduce vars
+info: |
+    [...]
+    20. Else,
+      a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+      b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+      c. Let env be NewDeclarativeEnvironment(calleeEnv).
+      d. Let envRec be env's EnvironmentRecord.
+    [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probe1, probe2;
+
+function f(
+    _ = probe1 = function() { return x; },
+    __ = (eval('var x = "inside";'), probe2 = function() { return x; })
+  ) {
+}
+f();
+
+assert.sameValue(probe1(), 'inside');
+assert.sameValue(probe2(), 'inside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-close.js b/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-close.js
new file mode 100644
index 0000000000..60a9300041
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-close.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    sloppy direct evals in params introduce vars
+info: |
+    [...]
+    20. Else,
+      a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+      b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+      c. Let env be NewDeclarativeEnvironment(calleeEnv).
+      d. Let envRec be env's EnvironmentRecord.
+    [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probeParam, probeBody;
+
+function f(
+    ...[_ = (eval('var x = "inside";'), probeParam = function() { return x; })]
+  ) {
+    probeBody = function() { return x; }
+}
+f();
+
+assert.sameValue(probeParam(), 'inside');
+assert.sameValue(probeBody(), 'inside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-open.js b/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-open.js
new file mode 100644
index 0000000000..d51883fa90
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-param-rest-elem-var-open.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    sloppy direct evals in params introduce vars
+info: |
+    [...]
+    20. Else,
+      a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+      b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+      c. Let env be NewDeclarativeEnvironment(calleeEnv).
+      d. Let envRec be env's EnvironmentRecord.
+    [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probe1, probe2;
+
+function f(
+    _ = probe1 = function() { return x; },
+    ...[__ = (eval('var x = "inside";'), probe2 = function() { return x; })]
+  ) {
+}
+f();
+
+assert.sameValue(probe1(), 'inside');
+assert.sameValue(probe2(), 'inside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-paramsbody-var-close.js b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-close.js
new file mode 100644
index 0000000000..bf46717b5b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-close.js
@@ -0,0 +1,37 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    Disposal of variable environment for the function body
+info: |
+    [...]
+    26. If hasParameterExpressions is false, then
+        [...]
+    27. Else,
+        a. NOTE A separate Environment Record is needed to ensure that closures
+           created by expressions in the formal parameter list do not have
+           visibility of declarations in the function body.
+        b. Let varEnv be NewDeclarativeEnvironment(env).
+        c. Let varEnvRec be varEnv's EnvironmentRecord.
+        d. Set the VariableEnvironment of calleeContext to varEnv.
+        e. Let instantiatedVarNames be a new empty List.
+        [...]
+---*/
+
+var probe;
+
+// A parameter expression is necessary to trigger the creation of the scope
+// under test.
+function f(_ = null) {
+  var x = 'inside';
+  probe = function() { return x; };
+}
+f();
+
+var x = 'outside';
+
+assert.sameValue(probe(), 'inside');
+assert.sameValue(x, 'outside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js
new file mode 100644
index 0000000000..84c38b197c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js
@@ -0,0 +1,35 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-functiondeclarationinstantiation
+description: >
+    Creation of new variable environment for the function body (as distinct from
+    that for the function's parameters)
+info: |
+    [...]
+    26. If hasParameterExpressions is false, then
+        [...]
+    27. Else,
+        a. NOTE A separate Environment Record is needed to ensure that closures
+           created by expressions in the formal parameter list do not have
+           visibility of declarations in the function body.
+        b. Let varEnv be NewDeclarativeEnvironment(env).
+        c. Let varEnvRec be varEnv's EnvironmentRecord.
+        d. Set the VariableEnvironment of calleeContext to varEnv.
+        e. Let instantiatedVarNames be a new empty List.
+        [...]
+---*/
+
+var x = 'outside';
+var probeParams, probeBody;
+
+function f(_ = probeParams = function() { return x; }) {
+  var x = 'inside';
+  probeBody = function() { return x; };
+}
+f();
+
+assert.sameValue(probeParams(), 'outside');
+assert.sameValue(probeBody(), 'inside');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/shell.js b/js/src/tests/test262/language/statements/function/shell.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/js/src/tests/test262/language/statements/function/static-init-await-binding-invalid.js b/js/src/tests/test262/language/statements/function/static-init-await-binding-invalid.js
new file mode 100644
index 0000000000..2804c05f85
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/static-init-await-binding-invalid.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-class-definitions-static-semantics-early-errors
+description: BindingIdentifier may not be `await` within class static blocks
+info: |
+  BindingIdentifier : Identifier
+
+  [...]
+  - It is a Syntax Error if the code matched by this production is nested,
+    directly or indirectly (but not crossing function or static initialization
+    block boundaries), within a ClassStaticBlock and the StringValue of
+    Identifier is "await".
+negative:
+  phase: parse
+  type: SyntaxError
+features: [class-static-block]
+---*/
+
+$DONOTEVALUATE();
+
+class C {
+  static {
+    function await() {}
+  }
+}
+
diff --git a/js/src/tests/test262/language/statements/function/static-init-await-binding-valid.js b/js/src/tests/test262/language/statements/function/static-init-await-binding-valid.js
new file mode 100644
index 0000000000..671a7906ce
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/static-init-await-binding-valid.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-class-definitions-static-semantics-early-errors
+description: The `await` keyword is interpreted as an identifier within arrow function bodies
+info: |
+  ClassStaticBlockBody : ClassStaticBlockStatementList
+
+  [...]
+  - It is a Syntax Error if ContainsAwait of ClassStaticBlockStatementList is true.
+features: [class-static-block]
+---*/
+
+class C {
+  static {
+    (() => { function await() {} });
+  }
+}
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/unscopables-with-in-nested-fn.js b/js/src/tests/test262/language/statements/function/unscopables-with-in-nested-fn.js
new file mode 100644
index 0000000000..cce6cfb641
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/unscopables-with-in-nested-fn.js
@@ -0,0 +1,104 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/unscopables-with-in-nested-fn.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Symbol.unscopables behavior across scope boundaries (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [globalThis, Symbol.unscopables]
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    ...
+    Let envRec be lex's EnvironmentRecord.
+    Let exists be ? envRec.HasBinding(name).
+
+    HasBinding
+
+    ...
+    If the withEnvironment flag of envRec is false, return true.
+    Let unscopables be ? Get(bindings, @@unscopables).
+    If Type(unscopables) is Object, then
+       Let blocked be ToBoolean(? Get(unscopables, N)).
+       If blocked is true, return false.
+
+    (The `with` Statement) Runtime Semantics: Evaluation
+
+    ...
+    Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
+    ...
+
+---*/
+let count = 0;
+var v = 1;
+globalThis[Symbol.unscopables] = {
+  v: true,
+};
+
+{
+  count++;
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(x) {
+  (function() {
+    count++;
+    with (globalThis) {
+      count++;
+      assert.sameValue(v, 1, 'The value of `v` is 1');
+    }
+  })();
+  (function() {
+    count++;
+    var v = x;
+    with (globalThis) {
+      count++;
+      assert.sameValue(v, 10, 'The value of `v` is 10');
+      v = 20;
+    }
+    assert.sameValue(v, 20, 'The value of `v` is 20');
+    assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1');
+  })();
+  assert.sameValue(v, 1, 'The value of `v` is 1');
+  assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1');
+  callCount = callCount + 1;
+}
+
+ref(10);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+  count++;
+}
+assert.sameValue(count, 6, 'The value of `count` is 6');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/unscopables-with.js b/js/src/tests/test262/language/statements/function/unscopables-with.js
new file mode 100644
index 0000000000..ddbef97778
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/unscopables-with.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/unscopables-with.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Symbol.unscopables behavior across scope boundaries (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [globalThis, Symbol.unscopables]
+flags: [generated, noStrict]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    ...
+    Let envRec be lex's EnvironmentRecord.
+    Let exists be ? envRec.HasBinding(name).
+
+    HasBinding
+
+    ...
+    If the withEnvironment flag of envRec is false, return true.
+    Let unscopables be ? Get(bindings, @@unscopables).
+    If Type(unscopables) is Object, then
+       Let blocked be ToBoolean(? Get(unscopables, N)).
+       If blocked is true, return false.
+
+    (The `with` Statement) Runtime Semantics: Evaluation
+
+    ...
+    Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
+    ...
+
+---*/
+let count = 0;
+var v = 1;
+globalThis[Symbol.unscopables] = {
+  v: true,
+};
+
+{
+  count++;
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(x) {
+  count++;
+  with (globalThis) {
+    count++;
+    assert.sameValue(v, undefined, 'The value of `v` is expected to equal `undefined`');
+  }
+  count++;
+  var v = x;
+  with (globalThis) {
+    count++;
+    assert.sameValue(v, 10, 'The value of `v` is 10');
+    v = 20;
+  }
+  assert.sameValue(v, 20, 'The value of `v` is 20');
+  assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1');
+  callCount = callCount + 1;
+}
+
+ref(10);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+  count++;
+}
+assert.sameValue(count, 6, 'The value of `count` is 6');
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/language/statements/function/use-strict-with-non-simple-param.js b/js/src/tests/test262/language/statements/function/use-strict-with-non-simple-param.js
new file mode 100644
index 0000000000..676d0a47c5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/use-strict-with-non-simple-param.js
@@ -0,0 +1,22 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-function-definitions-static-semantics-early-errors
+description: >
+  A SyntaxError is thrown if a function contains a non-simple parameter list and a UseStrict directive.
+info: |
+  Static Semantics: Early Errors
+
+  It is a Syntax Error if ContainsUseStrict of FunctionBody is true and IsSimpleParameterList of FormalParameters is false.
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+function f(a = 0) {
+  "use strict";
+}
-- 
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