text: load("1d8ada728956c1a3d52d68d1d4d6dd52.js");
  // Copyright 2015 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.
  
  function Bar() { }
  function Baz() { }
  Baz.prototype = { __proto__: new Bar() }
  var x = new Baz();
  function foo(y) { return y instanceof Bar; }
  assertTrue(foo(x));
  Baz.prototype.__proto__ = null;
  assertFalse(foo(x));
  