// 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 Let sb be a break statement. If sb is of the form break L;, then
/// let sE be the innermost labeled statement with label L enclosing sb. If
/// sb is of the form break;, then let sE be the innermost do, for, switch or
/// while statement enclosing sb. It is a compile-time error if no such statement
/// sE exists within the innermost function in which sb occurs.
/// @description Checks that it is a compile-time error when no such statement sE
/// exists within the innermost function.
/// @author ilya


main() {
  L: for (int i in [1,2]) {
    f(x) {
      if (x == 1)
        break L;
//            ^
// [analyzer] unspecified
// [cfe] unspecified
    }
    f(i);
  }
}
