compositor: use defunct_role_object error

types/wlr_compositor.c

@@ -38,9 +38,8 @@ static void surface_handle_destroy(struct wl_client *client,
 		struct wl_resource *resource) {
 	struct wlr_surface *surface = wlr_surface_from_resource(resource);
 	if (surface->role_data != NULL) {
-		// TODO: send WL_SURFACE_ERROR_DEFUNCT_ROLE_OBJECT
-		// https://gitlab.freedesktop.org/wayland/wayland/-/merge_requests/278
-		wl_resource_post_error(resource, -1,
+		wl_resource_post_error(resource,
+			WL_SURFACE_ERROR_DEFUNCT_ROLE_OBJECT,
 			"surface was destroyed before its role object");
 		return;
 	}