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 5 var o = {}; 6 o[""] = 1; 7 var x = {__proto__:o}; 8 for (i = 0; i < 3; i++) { 9 o[""]; 10 } 11 for (i = 0; i < 3; i++) { 12 assertEquals(undefined, o.x); 13 } 14