Converted Observatory field-view element

runtime/observatory/lib/src/repositories/field.dart

Index: runtime/observatory/lib/src/repositories/field.dart
diff --git a/runtime/observatory/lib/src/repositories/objectstore.dart b/runtime/observatory/lib/src/repositories/field.dart
similarity index 63%
copy from runtime/observatory/lib/src/repositories/objectstore.dart
copy to runtime/observatory/lib/src/repositories/field.dart
index 7456d9a467fb8de15d35a817bd8862ce7f380469..b467d08228ddcf1dac696fb46334981c6b7f176f 100644
--- a/runtime/observatory/lib/src/repositories/objectstore.dart
+++ b/runtime/observatory/lib/src/repositories/field.dart
@@ -4,10 +4,12 @@
 
 part of repositories;
 
-class ObjectStoreRepository implements M.ObjectStoreRepository {
-  Future<M.ObjectStore> get(M.IsolateRef i) async {
+class FieldRepository extends M.FieldRepository {
+  FieldRepository();
+
+  Future<M.Field> get(M.IsolateRef i, String id) async{
     S.Isolate isolate = i as S.Isolate;
     assert(isolate != null);
-    return isolate.getObjectStore();
+    return (await isolate.getObject(id)) as S.Field;
   }
 }