Make dart:dom implementation types private so they don't muddle the docs.

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

Index: client/dom/generated/src/frog/XSLTProcessor.dart
diff --git a/client/dom/generated/src/frog/XSLTProcessor.dart b/client/dom/generated/src/frog/XSLTProcessor.dart
index af7e2dd7e71b94a2a188da3d0c6572fd4b158dc3..6fffa9c97b81748e1e7e6d3a7ffd811f6ef50149 100644
--- a/client/dom/generated/src/frog/XSLTProcessor.dart
+++ b/client/dom/generated/src/frog/XSLTProcessor.dart
@@ -1,11 +1,11 @@
 
-class XSLTProcessorJs extends DOMTypeJs implements XSLTProcessor native "*XSLTProcessor" {
+class _XSLTProcessorJs extends _DOMTypeJs implements XSLTProcessor native "*XSLTProcessor" {
 
   void clearParameters() native;
 
   String getParameter(String namespaceURI, String localName) native;
 
-  void importStylesheet(NodeJs stylesheet) native;
+  void importStylesheet(_NodeJs stylesheet) native;
 
   void removeParameter(String namespaceURI, String localName) native;
 
@@ -13,7 +13,7 @@ class XSLTProcessorJs extends DOMTypeJs implements XSLTProcessor native "*XSLTPr
 
   void setParameter(String namespaceURI, String localName, String value) native;
 
-  DocumentJs transformToDocument(NodeJs source) native;
+  _DocumentJs transformToDocument(_NodeJs source) native;
 
-  DocumentFragmentJs transformToFragment(NodeJs source, DocumentJs docVal) native;
+  _DocumentFragmentJs transformToFragment(_NodeJs source, _DocumentJs docVal) native;
 }