// Copyright 2018 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./* Test behaviors when the prototype has elements */// forEach(function(){vararray=[,];functionincrement(v,k,arr){arr[k]=v+1;}functionforEach(){array.forEach(increment);}forEach();assertEquals(array,[,]);// behavior from the prototypearray.__proto__.push(5);assertEquals(Object.getOwnPropertyDescriptor(array,0),undefined);forEach();assertNotEquals(Object.getOwnPropertyDescriptor(array,0),undefined);assertEquals(array[0],6);})();