Don't stop the event handler

runtime/bin/process.cc

Index: runtime/bin/process.cc
diff --git a/runtime/bin/process.cc b/runtime/bin/process.cc
index 2d9d0ed092674b3c148d7e85a5a2ba2e7305bd3f..242ef1c055db971bcc41d2a26b25bd32bd1a0267 100644
--- a/runtime/bin/process.cc
+++ b/runtime/bin/process.cc
@@ -221,7 +221,8 @@ void FUNCTION_NAME(Process_Exit)(Dart_NativeArguments args) {
   Dart_ExitIsolate();
   Dart_Cleanup();
   DebuggerConnectionHandler::StopHandler();
-  EventHandler::Stop();
+  // TODO(zra): Stop the EventHandler once thread shutdown is enabled.
+  // EventHandler::Stop();
   exit(static_cast<int>(status));
 }