Move frog dart:dom from fields to getters/setters.

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

 
 class HTMLScriptElement extends HTMLElement native "*HTMLScriptElement" {
 
-  bool async;
+  bool get async() native "return this.async;";
 
-  String charset;
+  void set async(bool value) native "this.async = value;";
 
-  bool defer;
+  String get charset() native "return this.charset;";
 
-  String event;
+  void set charset(String value) native "this.charset = value;";
 
-  String htmlFor;
+  bool get defer() native "return this.defer;";
 
-  String src;
+  void set defer(bool value) native "this.defer = value;";
 
-  String text;
+  String get event() native "return this.event;";
 
-  String type;
+  void set event(String value) native "this.event = value;";
+
+  String get htmlFor() native "return this.htmlFor;";
+
+  void set htmlFor(String value) native "this.htmlFor = value;";
+
+  String get src() native "return this.src;";
+
+  void set src(String value) native "this.src = value;";
+
+  String get text() native "return this.text;";
+
+  void set text(String value) native "this.text = value;";
+
+  String get type() native "return this.type;";
+
+  void set type(String value) native "this.type = value;";
 }