Handle vmservice messages while at breakpoint.

runtime/vm/debugger_api_impl_test.cc

 // Copyright (c) 2012, 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.
 
 #include "include/dart_debugger_api.h"
 #include "include/dart_mirrors_api.h"
 #include "platform/assert.h"
 #include "vm/dart_api_impl.h"
 #include "vm/thread.h"
 #include "vm/unit_test.h"
@@ skipping 1282 matching lines @@
 
   Dart_SetIsolateEventHandler(&TestIsolateID);
   Dart_Isolate isolate = TestCase::CreateTestIsolate();
   ASSERT(isolate != NULL);
   Dart_EnterScope();
   LoadScript(kScriptChars);
   Dart_Handle retval = Invoke("main");
   EXPECT_VALID(retval);
   EXPECT(test_isolate_id != ILLEGAL_ISOLATE_ID);
   EXPECT(Dart_GetIsolate(test_isolate_id) == isolate);
+  EXPECT(Dart_GetIsolateId(isolate) == test_isolate_id);
   Dart_ExitScope();
   Dart_ShutdownIsolate();
   EXPECT(verify_callback == 0x5);  // Only created and shutdown events.
 }
 
 
 static Monitor* sync = NULL;
 static bool isolate_interrupted = false;
 static Dart_IsolateId interrupt_isolate_id = ILLEGAL_ISOLATE_ID;
 static volatile bool continue_isolate_loop = true;
@@ skipping 745 matching lines @@
 
   Dart_Handle list_type = Dart_InstanceGetType(list_access_test_obj);
   Dart_Handle super_type = Dart_GetSupertype(list_type);
   EXPECT(!Dart_IsError(super_type));
   super_type = Dart_GetSupertype(super_type);
   EXPECT(!Dart_IsError(super_type));
   EXPECT(super_type == Dart_Null());
 }
 
 }  // namespace dart