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

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

 
-class LocationJs extends DOMTypeJs implements Location native "*Location" {
+class _LocationJs extends _DOMTypeJs implements Location native "*Location" {
 
   String get hash() native "return this.hash;";
 
   void set hash(String value) native "this.hash = value;";
 
   String get host() native "return this.host;";
 
   void set host(String value) native "this.host = value;";
 
   String get hostname() native "return this.hostname;";
@@ skipping 23 matching lines @@
   void set search(String value) native "this.search = value;";
 
   void assign(String url) native;
 
   void reload() native;
 
   void replace(String url) native;
 
   String toString() native;
 }