text: // Copyright 2013 the V8 project authors. All rights reserved.
  // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions
  // are met:
  // 1.  Redistributions of source code must retain the above copyright
  //     notice, this list of conditions and the following disclaimer.
  // 2.  Redistributions in binary form must reproduce the above copyright
  //     notice, this list of conditions and the following disclaimer in the
  //     documentation and/or other materials provided with the distribution.
  //
  // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  description(
  "Tests that the DFG CFA is not overzealous in removing prototype structure checks for put_by_id transitions."
  );
  
  function foo(a, b)
  {
      a.f = b;
  }
  
  var Empty = "";
  
  function Foo() {
  }
  
  var stuff;
  
  for (var i = 0; i < 1000; ++i) {
      if (i >= 900)
          Foo.prototype.__defineSetter__("f", function(value) { stuff = value; });
  
      var o = new Foo();
      eval(Empty + "foo(o, i)");
      if (i >= 900) {
          shouldBe("stuff", "" + i);
          shouldBe("o.f", "" + (void 0));
      } else
          shouldBe("o.f", "" + i);
  }
  