/*
 * Copyright (c) 2011, 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.
 */
library lib;

var x = 1;

f() {return 1;}

class A {
  static var y;
}

typedef int B(String s);
