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

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

 
 class _HTMLObjectElementJs extends _HTMLElementJs implements HTMLObjectElement native "*HTMLObjectElement" {
 
-  String get align() native "return this.align;";
+  String align;
 
-  void set align(String value) native "this.align = value;";
+  String archive;
 
-  String get archive() native "return this.archive;";
+  String border;
 
-  void set archive(String value) native "this.archive = value;";
+  String code;
 
-  String get border() native "return this.border;";
+  String codeBase;
 
-  void set border(String value) native "this.border = value;";
+  String codeType;
 
-  String get code() native "return this.code;";
+  final _DocumentJs contentDocument;
 
-  void set code(String value) native "this.code = value;";
+  String data;
 
-  String get codeBase() native "return this.codeBase;";
+  bool declare;
 
-  void set codeBase(String value) native "this.codeBase = value;";
+  final _HTMLFormElementJs form;
 
-  String get codeType() native "return this.codeType;";
+  String height;
 
-  void set codeType(String value) native "this.codeType = value;";
+  int hspace;
 
-  _DocumentJs get contentDocument() native "return this.contentDocument;";
+  String name;
 
-  String get data() native "return this.data;";
+  String standby;
 
-  void set data(String value) native "this.data = value;";
+  String type;
 
-  bool get declare() native "return this.declare;";
+  String useMap;
 
-  void set declare(bool value) native "this.declare = value;";
+  final String validationMessage;
 
-  _HTMLFormElementJs get form() native "return this.form;";
+  final _ValidityStateJs validity;
 
-  String get height() native "return this.height;";
+  int vspace;
 
-  void set height(String value) native "this.height = value;";
+  String width;
 
-  int get hspace() native "return this.hspace;";
-
-  void set hspace(int value) native "this.hspace = value;";
-
-  String get name() native "return this.name;";
-
-  void set name(String value) native "this.name = value;";
-
-  String get standby() native "return this.standby;";
-
-  void set standby(String value) native "this.standby = value;";
-
-  String get type() native "return this.type;";
-
-  void set type(String value) native "this.type = value;";
-
-  String get useMap() native "return this.useMap;";
-
-  void set useMap(String value) native "this.useMap = value;";
-
-  String get validationMessage() native "return this.validationMessage;";
-
-  _ValidityStateJs get validity() native "return this.validity;";
-
-  int get vspace() native "return this.vspace;";
-
-  void set vspace(int value) native "this.vspace = value;";
-
-  String get width() native "return this.width;";
-
-  void set width(String value) native "this.width = value;";
-
-  bool get willValidate() native "return this.willValidate;";
+  final bool willValidate;
 
   bool checkValidity() native;
 
   _SVGDocumentJs getSVGDocument() native;
 
   void setCustomValidity(String error) native;
 }