Get rid of a lot of () for getters.

tests/utils/dummy.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.
 
 // A dummy library for testing dartdoc name references.
 #library('dummy');
 
 topLevelMethod() => null;
 
 class Class {
   Class() => null;
   Class.namedConstructor() => null;
   method(param) => null;
-  get getterOnly() => null;
-  get getterAndSetter() => null;
+  get getterOnly => null;
+  get getterAndSetter => null;
   set getterAndSetter(val) => null;
   set setterOnly(val) => null;
 }