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// Copyright 2016 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() {}
foo.__defineGetter__(undefined, function() {})
function bar() {}
function baz(x) { return x instanceof bar };
%OptimizeFunctionOnNextCall(baz);
baz();
Object.setPrototypeOf(bar, null);
bar[Symbol.hasInstance] = function() { return true };
assertTrue(baz());
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