Remove reflectedType hack from Polymer.

pkg/polymer/lib/src/loader.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of polymer;
 
 /** Annotation used to automatically register polymer elements. */
 class CustomTag {
   final String tagName;
   const CustomTag(this.tagName);
@@ skipping 162 matching lines @@
   // Search top-level functions marked with @initMethod
   for (var f in lib.declarations.values.where((d) => d is MethodMirror)) {
     _maybeInvoke(lib, f);
   }
 
   for (var c in lib.declarations.values.where((d) => d is ClassMirror)) {
     // Search for @CustomTag on classes
     for (var m in c.metadata) {
       var meta = m.reflectee;
       if (meta is CustomTag) {
-        Polymer.register(meta.tagName, getReflectedTypeWorkaround(c));
+        Polymer.register(meta.tagName, c.reflectedType);

[rmacnak, 2013/12/07 02:34:10]

Woe to the fool that puts @CustomTag on a generic class...

[Jennifer Messerly, 2013/12/09 19:00:50]

haha :). yeah, no worries. They could always call Polymer.register manually if
they want that.

       }
     }
 
     // TODO(sigmund): check also static methods marked with @initMethod.
     // This is blocked on two bugs:
     //  - dartbug.com/12133 (static methods are incorrectly listed as top-level
     //    in dart2js, so they end up being called twice)
     //  - dartbug.com/12134 (sometimes "method.metadata" throws an exception,
     //    we could wrap and hide those exceptions, but it's not ideal).
   }
@@ skipping 17 matching lines @@
     print("warning: methods marked with @initMethod should take no "
         "arguments, ${method.simpleName} expects some.");
     return;
   }
   obj.invoke(method.simpleName, const []);
 }
 
 class _InitMethodAnnotation {
   const _InitMethodAnnotation();
 }