// 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-syntaxglobal='n';functionf(deopt){letit=global[Symbol.iterator]();if(deopt){returnit.next().value;}}f();f();%OptimizeFunctionOnNextCall(f);assertEquals('n',f(true));