Mojo: Report bindings validation errors via MojoNotifyBadMessage

mojo/public/cpp/bindings/associated_binding.h

Index: mojo/public/cpp/bindings/associated_binding.h
diff --git a/mojo/public/cpp/bindings/associated_binding.h b/mojo/public/cpp/bindings/associated_binding.h
index 2d4e3392230bc936a18978e692f8c6c49b925014..cb38ad47ab9207d1f635837cd162a95d09031c9a 100644
--- a/mojo/public/cpp/bindings/associated_binding.h
+++ b/mojo/public/cpp/bindings/associated_binding.h
@@ -103,6 +103,7 @@ class AssociatedBinding {
         Interface::HasSyncMethods_, std::move(runner)));
     endpoint_client_->set_connection_error_handler(
         [this]() { connection_error_handler_.Run(); });
+    endpoint_client_->set_interface_name(Interface::Name_);
 
     stub_.serialization_context()->router = endpoint_client_->router();
   }