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

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

 
 class XPathResult native "*XPathResult" {
 
   static final int ANY_TYPE = 0;
 
   static final int ANY_UNORDERED_NODE_TYPE = 8;
 
   static final int BOOLEAN_TYPE = 3;
 
   static final int FIRST_ORDERED_NODE_TYPE = 9;
 
   static final int NUMBER_TYPE = 1;
 
   static final int ORDERED_NODE_ITERATOR_TYPE = 5;
 
   static final int ORDERED_NODE_SNAPSHOT_TYPE = 7;
 
   static final int STRING_TYPE = 2;
 
   static final int UNORDERED_NODE_ITERATOR_TYPE = 4;
 
   static final int UNORDERED_NODE_SNAPSHOT_TYPE = 6;
 
-  bool booleanValue;
+  bool get booleanValue() native "return this.booleanValue;";
 
-  bool invalidIteratorState;
+  bool get invalidIteratorState() native "return this.invalidIteratorState;";
 
-  num numberValue;
+  num get numberValue() native "return this.numberValue;";
 
-  int resultType;
+  int get resultType() native "return this.resultType;";
 
-  Node singleNodeValue;
+  Node get singleNodeValue() native "return this.singleNodeValue;";
 
-  int snapshotLength;
+  int get snapshotLength() native "return this.snapshotLength;";
 
-  String stringValue;
+  String get stringValue() native "return this.stringValue;";
 
   Node iterateNext() native;
 
   Node snapshotItem(int index) native;
 
   var dartObjectLocalStorage;
 
   String get typeName() native;
 }