Converted Observatory class-nav-menu element

runtime/observatory/lib/src/service/object.dart

Index: runtime/observatory/lib/src/service/object.dart
diff --git a/runtime/observatory/lib/src/service/object.dart b/runtime/observatory/lib/src/service/object.dart
index f82f25cf840fd4de4495c611c728f93eac61bc33..73556978dec85dc3b9eb0072f12de99e2635ded5 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -1117,7 +1117,7 @@ class HeapSnapshot {
 }
 
 /// State for a running isolate.
-class Isolate extends ServiceObjectOwner {
+class Isolate extends ServiceObjectOwner  implements M.IsolateRef {
   static const kLoggingStream = '_Logging';
   static const kExtensionStream = 'Extension';
 
@@ -2232,7 +2232,7 @@ class Allocations {
   bool get empty => accumulated.empty && current.empty;
 }
 
-class Class extends HeapObject {
+class Class extends HeapObject implements M.ClassRef {
   @observable Library library;
 
   @observable bool isAbstract;