Removed dynamic Symbol creation and marked Bindable classes

runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart

Index: runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart
diff --git a/runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart b/runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart
index dc78739cbae4321afcef45ecfa59076d2e1566e5..93978c59eb78f2821287aecaf79dda5c7e3baae2 100644
--- a/runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart
+++ b/runtime/observatory/lib/src/elements/isolate_ref_wrapper.dart
@@ -13,10 +13,12 @@ import 'package:observatory/src/elements/isolate_ref.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 import 'package:observatory/src/elements/shims/binding.dart';
 
+@bindable
 class IsolateRefElementWrapper extends HtmlElement {
 
-  static final binder = new Binder<IsolateRefElementWrapper>(
-    const [const Binding('ref')]);
+  static const binder = const Binder<IsolateRefElementWrapper>(const {
+      'ref': #ref
+    });
 
   static const tag = const Tag<IsolateRefElementWrapper>('isolate-ref');