// 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.vara=[1,2,3];varwas_called=false;functionpoison(){was_called=true;}a.hasOwnProperty=poison;Object.freeze(a);assertThrows("a.unshift()",TypeError);assertEquals(3,a.length);assertFalse(was_called);