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

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

 
 class _SVGStyleElementJs extends _SVGElementJs implements SVGStyleElement native "*SVGStyleElement" {
 
-  String get media() native "return this.media;";
+  String media;
 
-  void set media(String value) native "this.media = value;";
+  String title;
 
-  String get title() native "return this.title;";
-
-  void set title(String value) native "this.title = value;";
-
-  String get type() native "return this.type;";
-
-  void set type(String value) native "this.type = value;";
+  String type;
 
   // From SVGLangSpace
 
-  String get xmllang() native "return this.xmllang;";
+  String xmllang;
 
-  void set xmllang(String value) native "this.xmllang = value;";
-
-  String get xmlspace() native "return this.xmlspace;";
-
-  void set xmlspace(String value) native "this.xmlspace = value;";
+  String xmlspace;
 }