tests/language/assign_top_method_test.dart

// 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.

method() { return 0; }

main() {
  // Illegal, can't change a top level method
  Expect.throws(() { method = () { return 1; }; },
                (e) => e is NoSuchMethodError);
}