Fix code generation in polymer: we avoided generating types above HtmlElement in

pkg/polymer/lib/src/build/script_compactor.dart

Index: pkg/polymer/lib/src/build/script_compactor.dart
diff --git a/pkg/polymer/lib/src/build/script_compactor.dart b/pkg/polymer/lib/src/build/script_compactor.dart
index b90dfe1ca2c1ad11fdb746e646667aaf207bf5a0..765c46393cf894111c69a2c89beda706275c4363 100644
--- a/pkg/polymer/lib/src/build/script_compactor.dart
+++ b/pkg/polymer/lib/src/build/script_compactor.dart
@@ -269,7 +269,8 @@ class _ScriptCompactor extends PolymerTransformer {
       var attrs = publishedAttributes[tagName];
       if (attrs == null) continue;
       for (var attr in attrs) {
-        recorder.lookupMember(cls, attr, recursive: true);
+        recorder.lookupMember(cls, attr, recursive: true,
+            includeUpTo: types.htmlElementElement);
       }
     }
   }