sdk/lib/core/identical.dart - sdk - Git at Google

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.

 /**
  * Check whether two references are to the same object.
  */
 external bool identical(Object a, Object b);
	// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
	// for details. All rights reserved. Use of this source code is governed by a
	// BSD-style license that can be found in the LICENSE file.

	/**
	* Check whether two references are to the same object.
	*/
	external bool identical(Object a, Object b);