Per-closure breakpoints; restructure breakpoint implementation to keep a list of conditions.

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 1157 matching lines @@
       }
       rethrow;
     }
   }
 
   Future<ServiceObject> addBreakpointAtEntry(ServiceFunction function) {
     return invokeRpc('addBreakpointAtEntry',
                      { 'functionId': function.id });
   }
 
+  Future<ServiceObject> addBreakOnActivation(Instance closure) {
+    return invokeRpc('_addBreakpointAtActivation',
+                     { 'objectId': closure.id });
+  }
+
   Future removeBreakpoint(Breakpoint bpt) {
     return invokeRpc('removeBreakpoint',
                      { 'breakpointId': bpt.id });
   }
 
   Future pause() {
     return invokeRpc('pause', {});
   }
 
   Future resume() {
@@ skipping 1925 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);
     }
   }
 }