Align source mirrors with runtime mirrors.

utils/apidoc/lib/metadata.dart

 library metadata;
 
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
+import '../../../sdk/lib/_internal/compiler/implementation/mirrors/source_mirrors.dart';
+import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors_util.dart';
 
 /// Returns the metadata for the given string or null if not found.
 InstanceMirror findMetadata(List<InstanceMirror> metadataList, String find) {
   return metadataList.firstWhere(
       (metadata) {
         if (metadata is TypeInstanceMirror) {
-          return metadata.representedType.simpleName == find;
+          return nameOf(metadata.representedType) == find;
         }
-        return metadata.type.simpleName == find;
+        return nameOf(metadata.type) == find;
       }, orElse: () => null);
 }