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-length-4.js b/js/src/jit-test/tests/arguments/args-redefine-length-4.js
new file mode 100644
index 0000000000..1029e8fca3
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/args-redefine-length-4.js
@@ -0,0 +1,14 @@
+function t()
+{
+  var a = arguments;
+  Object.defineProperty(a, "length", { writable: false });
+  for (var i = 0; i < 5; i++)
+    assertEq(a.length, 0);
+
+  var desc = Object.getOwnPropertyDescriptor(a, "length");
+  assertEq(desc.value, 0);
+  assertEq(desc.writable, false);
+  assertEq(desc.enumerable, false);
+  assertEq(desc.configurable, true);
+}
+t();