// 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.
part of myApp;

class Other1 {

  static Function FN;

  Other1() {

    if (FN == null) {
      FN = () { return 42; };
    }
  }
  void newMethod() { }
}
