Use fields in hidden native DOM classes instead of getters/setters.

client/dom/generated/src/frog/SVGGlyphRefElement.dart

Index: client/dom/generated/src/frog/SVGGlyphRefElement.dart
diff --git a/client/dom/generated/src/frog/SVGGlyphRefElement.dart b/client/dom/generated/src/frog/SVGGlyphRefElement.dart
index 2cf17be3e21e960fa82ee9e87c8c20a5764bb93f..95254bd4bc6eab6b6559025e891fdcf0f0c5e63e 100644
--- a/client/dom/generated/src/frog/SVGGlyphRefElement.dart
+++ b/client/dom/generated/src/frog/SVGGlyphRefElement.dart
@@ -1,39 +1,27 @@
 
 class _SVGGlyphRefElementJs extends _SVGElementJs implements SVGGlyphRefElement native "*SVGGlyphRefElement" {
 
-  num get dx() native "return this.dx;";
+  num dx;
 
-  void set dx(num value) native "this.dx = value;";
+  num dy;
 
-  num get dy() native "return this.dy;";
+  String format;
 
-  void set dy(num value) native "this.dy = value;";
+  String glyphRef;
 
-  String get format() native "return this.format;";
+  num x;
 
-  void set format(String value) native "this.format = value;";
-
-  String get glyphRef() native "return this.glyphRef;";
-
-  void set glyphRef(String value) native "this.glyphRef = value;";
-
-  num get x() native "return this.x;";
-
-  void set x(num value) native "this.x = value;";
-
-  num get y() native "return this.y;";
-
-  void set y(num value) native "this.y = value;";
+  num y;
 
   // From SVGURIReference
 
-  _SVGAnimatedStringJs get href() native "return this.href;";
+  final _SVGAnimatedStringJs href;
 
   // From SVGStylable
 
-  _SVGAnimatedStringJs get className() native "return this.className;";
+  final _SVGAnimatedStringJs className;
 
-  _CSSStyleDeclarationJs get style() native "return this.style;";
+  final _CSSStyleDeclarationJs style;
 
   _CSSValueJs getPresentationAttribute(String name) native;
 }