// Copyright 2019 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-syntaxfunctionincludes(key,array){// Transition to dictionary mode in the final invocation.array.__defineSetter__(key,()=>{});// Will then read OOB.returnarray.includes(1234);