Remove _NodeListWrapper, make NodeList less special.

sdk/lib/html/templates/html/impl/impl_Node.darttemplate

Index: sdk/lib/html/templates/html/impl/impl_Node.darttemplate
diff --git a/sdk/lib/html/templates/html/impl/impl_Node.darttemplate b/sdk/lib/html/templates/html/impl/impl_Node.darttemplate
index e15cb460809af106af218f2f465c501a8a90a326..cf46de298a9c03b81ab2dcc38389caf696cb6064 100644
--- a/sdk/lib/html/templates/html/impl/impl_Node.darttemplate
+++ b/sdk/lib/html/templates/html/impl/impl_Node.darttemplate
@@ -65,7 +65,7 @@ $endif
   Collection map(f(Node element)) => _Collections.map(this, [], f);
 
   Collection<Node> filter(bool f(Node element)) =>
-     new _NodeListWrapper(_Collections.filter(this, <Node>[], f));
+     _Collections.filter(this, <Node>[], f);
 
   bool every(bool f(Node element)) => _Collections.every(this, f);
 
@@ -101,7 +101,7 @@ $endif
         "Cannot insertRange on immutable List.");
   }
   List<Node> getRange(int start, int rangeLength) =>
-    new _NodeListWrapper(_Lists.getRange(this, start, rangeLength, <Node>[]));
+      _Lists.getRange(this, start, rangeLength, <Node>[]);
 
   // -- end List<Node> mixins.