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// 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
function foo(a) {
return a[0];
};
%PrepareFunctionForOptimization(foo);
assertEquals(undefined, foo(x => x));
assertEquals(undefined, foo({}));
%OptimizeFunctionOnNextCall(foo);
assertEquals(undefined, foo(x => x));
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