Add Observatory support for UnlinkedCall, SingleTargetCache and SubtypeTestCache.

runtime/observatory/lib/src/app/page.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of app;
 
 final _allocationProfileRepository = new AllocationProfileRepository();
 final _breakpointRepository = new BreakpointRepository();
+final _classRepository = new ClassRepository();
 final _classSampleProfileRepository = new ClassSampleProfileRepository();
-final _classRepository = new ClassRepository();
 final _contextRepository = new ContextRepository();
 final _evalRepository = new EvalRepository();
 final _fieldRepository = new FieldRepository();
 final _functionRepository = new FunctionRepository();
 final _heapSnapshotRepository = new HeapSnapshotRepository();
 final _icdataRepository = new ICDataRepository();
 final _inboundReferencesRepository = new InboundReferencesRepository();
 final _instanceRepository = new InstanceRepository();
 final _isolateRepository = new IsolateRepository();
 final _isolateSampleProfileRepository = new IsolateSampleProfileRepository();
 final _libraryRepository = new LibraryRepository();
 final _megamorphicCacheRepository = new MegamorphicCacheRepository();
 final _metricRepository = new MetricRepository();
+final _objectPoolRepository = new ObjectPoolRepository();
 final _objectRepository = new ObjectRepository();
-final _objectPoolRepository = new ObjectPoolRepository();
 final _objectstoreRepository = new ObjectStoreRepository();
 final _persistentHandlesRepository = new PersistentHandlesRepository();
 final _portsRepository = new PortsRepository();
 final _scriptRepository = new ScriptRepository();
+final _singleTargetCacheRepository = new SingleTargetCacheRepository();
 final _stronglyReachangleInstancesRepository =
-    new StronglyReachableInstancesRepository();
+  new StronglyReachableInstancesRepository();
+final _subtypeTestCacheRepository = new SubtypeTestCacheRepository();
 final _topRetainingInstancesRepository = new TopRetainingInstancesRepository();
 final _typeArgumentsRepository = new TypeArgumentsRepository();
+final _unlinkedCallRepository = new UnlinkedCallRepository();
 
 class IsolateNotFound implements Exception {
   String isolateId;
   IsolateNotFound(this.isolateId);
   String toString() => "IsolateNotFound: $isolateId";
 }
 
 RetainedSizeRepository _retainedSizeRepository = new RetainedSizeRepository();
 ReachableSizeRepository _reachableSizeRepository =
     new ReachableSizeRepository();
@@ skipping 309 matching lines @@
             app.events,
             app.notifications,
             _icdataRepository,
             _retainedSizeRepository,
             _reachableSizeRepository,
             _inboundReferencesRepository,
             _retainingPathRepository,
             _instanceRepository,
             queue: app.queue)
       ];
+    } else if (obj is SingleTargetCache) {
+      container.children = [
+        new SingleTargetCacheViewElement(
+            app.vm,
+            obj.isolate,
+            obj,
+            app.events,
+            app.notifications,
+            _singleTargetCacheRepository,
+            _retainedSizeRepository,
+            _reachableSizeRepository,
+            _inboundReferencesRepository,
+            _retainingPathRepository,
+            _instanceRepository,
+            queue: app.queue)
+      ];
+    } else if (obj is SubtypeTestCache) {
+      container.children = [
+        new SubtypeTestCacheViewElement(
+            app.vm,
+            obj.isolate,
+            obj,
+            app.events,
+            app.notifications,
+            _subtypeTestCacheRepository,
+            _retainedSizeRepository,
+            _reachableSizeRepository,
+            _inboundReferencesRepository,
+            _retainingPathRepository,
+            _instanceRepository,
+            queue: app.queue)
+      ];
+    } else if (obj is UnlinkedCall) {
+      container.children = [
+        new UnlinkedCallViewElement(
+            app.vm,
+            obj.isolate,
+            obj,
+            app.events,
+            app.notifications,
+            _unlinkedCallRepository,
+            _retainedSizeRepository,
+            _reachableSizeRepository,
+            _inboundReferencesRepository,
+            _retainingPathRepository,
+            _instanceRepository,
+            queue: app.queue)
+      ];
     } else if (obj is Library) {
       container.children = [
         new LibraryViewElement(
             app.vm,
             obj.isolate,
             obj,
             app.events,
             app.notifications,
             _libraryRepository,
             _fieldRepository,
@@ skipping 477 matching lines @@
     element = new TimelinePageElement(app.vm, app.events, app.notifications,
         queue: app.queue);
   }
 
   void _visit(Uri uri) {
     assert(canVisit(uri));
   }
 
   bool canVisit(Uri uri) => uri.path == 'timeline';
 }