Revert "Debugging in kernel shaping up."

runtime/vm/object_service.cc

Index: runtime/vm/object_service.cc
diff --git a/runtime/vm/object_service.cc b/runtime/vm/object_service.cc
index e95e8e317524b4831fa70f703777c59b022783c7..d4fc827ce49f6b8aafe568be9abe817517858b5f 100644
--- a/runtime/vm/object_service.cc
+++ b/runtime/vm/object_service.cc
@@ -408,7 +408,8 @@ void Field::PrintJSONImpl(JSONStream* stream, bool ref) const {
   } else {
     jsobj.AddProperty("_guardLength", guarded_list_length());
   }
-  const class Script& script = Script::Handle(Script());
+  const Class& origin_cls = Class::Handle(Origin());
+  const class Script& script = Script::Handle(origin_cls.script());
   if (!script.IsNull()) {
     jsobj.AddLocation(script, token_pos());
   }