Get rid of a lot of () for getters.

utils/css/world.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.
 
 /** The one true [World]. */
 World world;
 
 typedef void MessageHandler(String prefix, String message, SourceSpan span);
 typedef void PrintHandler(String message);
 
@@ skipping 133 matching lines @@
    * [message] at [location] will tell the user about what the compiler
    * is doing.
    */
   void info(String message,
       [SourceSpan span, SourceSpan span1, SourceSpan span2]) {
     if (options.showInfo) {
       _message(_GREEN_COLOR, 'info: ', message, span, span1, span2, false);
     }
   }
 
-  bool get hasErrors() => errors > 0;
+  bool get hasErrors => errors > 0;
 
   withTiming(String name, f()) {
     final sw = new Stopwatch();
     sw.start();
     var result = f();
     sw.stop();
     info('$name in ${sw.elapsedInMs()}msec');
     return result;
   }
 }
 
 // Color constants used for generating messages.
 String _GREEN_COLOR = '\u001b[32m';
 String _RED_COLOR = '\u001b[31m';
 String _MAGENTA_COLOR = '\u001b[35m';
 String _NO_COLOR = '\u001b[0m';