Template parser

utils/css/cssselectorexception.dart

 // 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.
 
 // TODO(terry): Rename CompilerException to be SourceException then this
 //              exception would be derived from SourceException.
 
 /** Can be thrown on any Css runtime problem includes source location. */
 class CssSelectorException implements Exception {
   final String _message;
-  final lang.SourceSpan _location;
+  final SourceSpan _location;
 
   CssSelectorException(this._message, [this._location = null]);
 
   String toString() {
     if (_location != null) {
       return 'CssSelectorException: ${_location.toMessageString(_message)}';
     } else {
       return 'CssSelectorException: $_message';
     }
   }
 
 }