1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5var o = {};
6o[""] = 1;
7var x = {__proto__:o};
8for (i = 0; i < 3; i++) {
9  o[""];
10}
11for (i = 0; i < 3; i++) {
12  assertEquals(undefined, o.x);
13}
14