// Copyright 2017 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 --expose-gc --turbo-inline-array-builtins(function(){varresult=0;varproto_set_func=function(p,s){%NeverOptimizeFunction(proto_set_func);if(s){p[0]=1;}}varf=function(s){varb=[,,];proto_set_func(b.__proto__,s);b[1]=0;b[2]=2;varsum=function(v,i,o){result+=v;};b.forEach(sum);