// 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.

/// @assertion "if" is a reserved word.
/// A reserved word may not be used as an identifier;  it is a compile-time error
/// if a reserved word is used where an identifier is expected.
/// @description Checks that it is a compile-time error when a reserved word "if"
/// is used as a label name.
/// @author rodionov


main() {
  if:
//  ^
// [analyzer] unspecified
// [cfe] unspecified
  do {
  break if;
//        ^
// [analyzer] unspecified
// [cfe] unspecified
  } while (false);
}
