Misc Observatory patches:

runtime/observatory/lib/src/service/object.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 service;
 
 /// An RpcException represents an exceptional event that happened
 /// while invoking an rpc.
 abstract class RpcException implements Exception {
   RpcException(this.message);
@@ skipping 96 matching lines @@
   bool get isMessage => type == 'Message';
 
   // Kinds of Instance.
   bool get isAbstractType => false;
   bool get isNull => false;
   bool get isBool => false;
   bool get isDouble => false;
   bool get isString => false;
   bool get isInt => false;
   bool get isList => false;
+  bool get isMap => false;
   bool get isMirrorReference => false;
   bool get isWeakProperty => false;
   bool get isClosure => false;
   bool get isPlainInstance => false;
 
   /// Has this object been fully loaded?
   bool get loaded => _loaded;
   bool _loaded = false;
   // TODO(turnidge): Make loaded observable and get rid of loading
   // from Isolate.
@@ skipping 1674 matching lines @@
   bool get isAbstractType {
     return (kind == 'Type' || kind == 'TypeRef' ||
             kind == 'TypeParameter' || kind == 'BoundedType');
   }
   bool get isNull => kind == 'Null';
   bool get isBool => kind == 'Bool';
   bool get isDouble => kind == 'Double';
   bool get isString => kind == 'String';
   bool get isInt => kind == 'Int';
   bool get isList => kind == 'List';
+  bool get isMap => kind == 'Map';
   bool get isMirrorReference => kind == 'MirrorReference';
   bool get isWeakProperty => kind == 'WeakProperty';
   bool get isClosure => kind == 'Closure';
 
   // TODO(turnidge): Is this properly backwards compatible when new
   // instance kinds are added?
   bool get isPlainInstance => kind == 'PlainInstance';
 
   Instance._empty(ServiceObjectOwner owner) : super._empty(owner);
 
@@ skipping 1339 matching lines @@
     var v = list[i];
     if ((v is ObservableMap) && _isServiceMap(v)) {
       list[i] = owner.getFromMap(v);
     } else if (v is ObservableList) {
       _upgradeObservableList(v, owner);
     } else if (v is ObservableMap) {
       _upgradeObservableMap(v, owner);
     }
   }
 }