// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --allow-natives-syntax function c(p) { return {__proto__: p}; } var p = {}; var o = c(p); p.x = 0.6; Object.defineProperty(p, "x", { writable: false });