Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 14 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/arguments/args-redefine-iterator-2.js b/js/src/jit-test/tests/arguments/args-redefine-iterator-2.js
new file mode 100644
index 0000000000..186be930c4
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/args-redefine-iterator-2.js
@@ -0,0 +1,14 @@
+function t()
+{
+  var a = arguments;
+  Object.defineProperty(a, Symbol.iterator, { writable: false, enumerable: true, configurable: false });
+  for (var i = 0; i < 5; i++)
+    assertEq(a[Symbol.iterator], Array.prototype[Symbol.iterator]);
+
+  var desc = Object.getOwnPropertyDescriptor(a, Symbol.iterator);
+  assertEq(desc.value, Array.prototype[Symbol.iterator]);
+  assertEq(desc.writable, false);
+  assertEq(desc.enumerable, true);
+  assertEq(desc.configurable, false);
+}
+t();