Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/global-code/script-decl-lex-deletion.js b/js/src/tests/test262/language/global-code/script-decl-lex-deletion.js
new file mode 100644
index 0000000000..5588429fc8
--- /dev/null
+++ b/js/src/tests/test262/language/global-code/script-decl-lex-deletion.js
@@ -0,0 +1,41 @@
+// 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-globaldeclarationinstantiation
+es6id: 15.1.8
+description: Globally-declared lexical bindings cannot be deleted
+info: |
+  [...]
+  16. For each element d in lexDeclarations do
+      a. NOTE Lexically declared names are only instantiated here but not
+         initialized.
+      b. For each element dn of the BoundNames of d do
+         i. If IsConstantDeclaration of d is true, then
+            1. Perform ? envRec.CreateImmutableBinding(dn, true).
+         ii. Else,
+             1. Perform ? envRec.CreateMutableBinding(dn, false).
+  [...]
+flags: [noStrict]
+---*/
+
+$262.evalScript('let test262let;');
+
+delete test262let;
+
+// Binding values are asserted by a dedicated test. IdentifierReferences serve
+// to ensure that the entries in the environment record persist.
+test262let;
+
+$262.evalScript('const test262const = null;');
+
+delete test262const;
+
+test262const;
+
+$262.evalScript('class test262class {}');
+
+delete test262class;
+
+test262class;
+
+reportCompare(0, 0);