Call shutdown callback before the isolate is destroyed

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index c002066478bb47231c41c71f58a26106cb757d77..930ef0c1ea9ecd2fddec19c254cf214f1e003970 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -799,6 +799,13 @@ DART_EXPORT Dart_Isolate Dart_CreateIsolate(const char* script_uri,
 
 DART_EXPORT void Dart_ShutdownIsolate() {
   CHECK_ISOLATE(Isolate::Current());
+  Isolate* isolate = Isolate::Current();

[siva, 2013/07/08 22:39:27]

Move this line up and change:
CHECK_ISOLATE(isolate);

[Cutch, 2013/07/08 22:43:24]

Done.

+  {
+    StartIsolateScope start_scope(isolate);

[siva, 2013/07/08 22:39:27]

StartIsolateScope is pretty much a NOP here as
saved_isolate_ is always equal to new_isolate_

[Cutch, 2013/07/08 22:43:24]

Done.

+    StackZone zone(isolate);
+    HandleScope handle_scope(isolate);
+    Dart::RunShutdownCallback();
+  }
   STOP_TIMER(time_total_runtime);
   Dart::ShutdownIsolate();
 }