Deal with deferred loading in the VM mirrors.

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
@@ skipping 5436 matching lines @@
     return state;
   }
 
   // Now that the newly loaded classes are finalized, notify the debugger
   // that new code has been loaded. If there are latent breakpoints in
   // the new code, the debugger convert them to unresolved source breakpoints.
   // The code that completes the futures (invoked below) may call into the
   // newly loaded code and trigger one of these breakpoints.
   isolate->debugger()->NotifyDoneLoading();
 
+  // Notify mirrors that MirrorSystem.libraries needs to be recomputed.
+  const Library& libmirrors =
+      Library::Handle(isolate, Library::MirrorsLibrary());
+  const Field& dirty_bit = Field::Handle(isolate,
+      libmirrors.LookupLocalField(String::Handle(String::New("dirty"))));
+  ASSERT(!dirty_bit.IsNull() && dirty_bit.is_static());
+  dirty_bit.set_value(Bool::True());
+
   if (complete_futures) {
     const Library& corelib = Library::Handle(isolate, Library::CoreLibrary());
     const String& function_name =
         String::Handle(isolate, String::New("_completeDeferredLoads"));
     const Function& function =
         Function::Handle(isolate,
                          corelib.LookupFunctionAllowPrivate(function_name));
     ASSERT(!function.IsNull());
     const Array& args = Array::empty_array();
 
@@ skipping 91 matching lines @@
 
 
 DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
     const char* name,
     Dart_ServiceRequestCallback callback,
     void* user_data) {
   Service::RegisterRootEmbedderCallback(name, callback, user_data);
 }
 
 }  // namespace dart