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

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

Index: client/dom/generated/src/frog/XPathResult.dart
diff --git a/client/dom/generated/src/frog/XPathResult.dart b/client/dom/generated/src/frog/XPathResult.dart
index 06e09753e0fd76843b7aa56e7da1db817fdcc8d6..e24e52cc06f4e0ab5501315c57a00a423a828d8f 100644
--- a/client/dom/generated/src/frog/XPathResult.dart
+++ b/client/dom/generated/src/frog/XPathResult.dart
@@ -21,19 +21,19 @@ class XPathResult native "*XPathResult" {
 
   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;