1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/args-redefine-iterator-1.js b/js/src/jit-test/tests/arguments/args-redefine-iterator-1.js
new file mode 100644
index 0000000000..77241a6ae7
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/args-redefine-iterator-1.js
@@ -0,0 +1,14 @@
+function t()
+{
+  var a = arguments;
+  Object.defineProperty(a, Symbol.iterator, { });
+  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, true);
+  assertEq(desc.enumerable, false);
+  assertEq(desc.configurable, true);
+}
+t();