Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 23 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/arguments-object/non-strict-arguments-object-is-immutable.js b/js/src/tests/test262/language/arguments-object/non-strict-arguments-object-is-immutable.js
new file mode 100644
index 0000000000..3717a107f2
--- /dev/null
+++ b/js/src/tests/test262/language/arguments-object/non-strict-arguments-object-is-immutable.js
@@ -0,0 +1,23 @@
+// Copyright 2017 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-functiondeclarationinstantiation
+description: Non-strict mode function execution context has a mutable "arguments" binding, however it is created with a "false" argument, which means it may not be deleted.
+info: |
+  envRec.CreateMutableBinding("arguments", false).
+
+  CreateMutableBinding(N, D)
+
+  Create a new but uninitialized mutable binding in an Environment Record. The String value N is the text of the bound name. If the Boolean argument D is true the binding may be subsequently deleted.
+
+flags: [noStrict]
+---*/
+
+function f1() {
+  assert.sameValue(delete arguments, false);
+}
+
+f1();
+
+reportCompare(0, 0);