// 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 a declaration d named n is in the namespace induced by a 
/// scope S, then d hides any declaration named n that is available in the 
/// lexically enclosing scope of S.
/// @description Checks that a hidden class name can't be used as a type. 
/// A compile error is expected.
/// @author msyabro

class C {}

main() {
  var C = 1;
  new C();
//    ^
// [analyzer] unspecified
// [cfe] unspecified
}
