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

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

Index: client/dom/generated/src/frog/XMLHttpRequest.dart
diff --git a/client/dom/generated/src/frog/XMLHttpRequest.dart b/client/dom/generated/src/frog/XMLHttpRequest.dart
index 9f4152553fa371a40887c3a07dd634c1a9e81931..44b00ca4312bc605c09ea5c935593f50bfe24a8f 100644
--- a/client/dom/generated/src/frog/XMLHttpRequest.dart
+++ b/client/dom/generated/src/frog/XMLHttpRequest.dart
@@ -13,25 +13,31 @@ class XMLHttpRequest native "*XMLHttpRequest" {
 
   static final int UNSENT = 0;
 
-  bool asBlob;
+  bool get asBlob() native "return this.asBlob;";
 
-  int readyState;
+  void set asBlob(bool value) native "this.asBlob = value;";
 
-  Blob responseBlob;
+  int get readyState() native "return this.readyState;";
 
-  String responseText;
+  Blob get responseBlob() native "return this.responseBlob;";
 
-  String responseType;
+  String get responseText() native "return this.responseText;";
 
-  Document responseXML;
+  String get responseType() native "return this.responseType;";
 
-  int status;
+  void set responseType(String value) native "this.responseType = value;";
 
-  String statusText;
+  Document get responseXML() native "return this.responseXML;";
 
-  XMLHttpRequestUpload upload;
+  int get status() native "return this.status;";
 
-  bool withCredentials;
+  String get statusText() native "return this.statusText;";
+
+  XMLHttpRequestUpload get upload() native "return this.upload;";
+
+  bool get withCredentials() native "return this.withCredentials;";
+
+  void set withCredentials(bool value) native "this.withCredentials = value;";
 
   void abort() native;