// Copyright 2020 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 --opt --no-always-optglo=0;functionwrite_glo(x){glo=x}%PrepareFunctionForOptimization(write_glo);write_glo(1);assertEquals(1,glo);// At this point, glo has cell type ConstantType.%OptimizeFunctionOnNextCall(write_glo);write_glo(0);assertEquals(0,glo);assertOptimized(write_glo);Object.freeze(this);assertUnoptimized(write_glo);write_glo(1);assertEquals(0,glo);