VM: Fix an app-jit related shutdown race.

runtime/vm/dart.cc

Index: runtime/vm/dart.cc
diff --git a/runtime/vm/dart.cc b/runtime/vm/dart.cc
index 83b1055b308621580006287e09e58a33d60212dd..c2da8952533e7a4cdcd2d3474d552b8288c03af5 100644
--- a/runtime/vm/dart.cc
+++ b/runtime/vm/dart.cc
@@ -125,6 +125,7 @@ char* Dart::InitOnce(const uint8_t* vm_isolate_snapshot,
                      const uint8_t* instructions_snapshot,
                      Dart_IsolateCreateCallback create,
                      Dart_IsolateShutdownCallback shutdown,
+                     Dart_IsolateCleanupCallback cleanup,
                      Dart_ThreadExitCallback thread_exit,
                      Dart_FileOpenCallback file_open,
                      Dart_FileReadCallback file_read,
@@ -313,6 +314,7 @@ char* Dart::InitOnce(const uint8_t* vm_isolate_snapshot,
   Thread::ExitIsolate();  // Unregister the VM isolate from this thread.
   Isolate::SetCreateCallback(create);
   Isolate::SetShutdownCallback(shutdown);
+  Isolate::SetCleanupCallback(cleanup);
 
   if (FLAG_support_service) {
     Service::SetGetServiceAssetsCallback(get_service_assets);