Use 'field' syntax in dart:dom interfaces.

client/dom/generated/src/interface/CSSPrimitiveValue.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.
 
 // WARNING: Do not edit - generated code.
 
 interface CSSPrimitiveValue extends CSSValue {
 
   static final int CSS_ATTR = 22;
 
@@ skipping 40 matching lines @@
   static final int CSS_RGBCOLOR = 25;
 
   static final int CSS_S = 15;
 
   static final int CSS_STRING = 19;
 
   static final int CSS_UNKNOWN = 0;
 
   static final int CSS_URI = 20;
 
-  int get primitiveType();
+  final int primitiveType;
 
   Counter getCounterValue();
 
   num getFloatValue(int unitType);
 
   RGBColor getRGBColorValue();
 
   Rect getRectValue();
 
   String getStringValue();
 
   void setFloatValue(int unitType, num floatValue);
 
   void setStringValue(int stringType, String stringValue);
 }