[gnome-builder] langserv: fix ownership transfer to call_async

[Christian Hergert <chergert src gnome org>]

commit 631cd430a0ff664cb7c66aa611c53279a0379518
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jan 13 18:57:58 2018 -0800

    langserv: fix ownership transfer to call_async
    
    These do not need to have ownership transfered. The cancellable is kept
    alive by the signal connection, and the params is not a floating reference
    so therefore has no transfer what-so-ever.

 src/libide/langserv/ide-langserv-completion-provider.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/libide/langserv/ide-langserv-completion-provider.c 
b/src/libide/langserv/ide-langserv-completion-provider.c
index 7496f50d0..f3376a4ba 100644
--- a/src/libide/langserv/ide-langserv-completion-provider.c
+++ b/src/libide/langserv/ide-langserv-completion-provider.c
@@ -371,8 +371,8 @@ ide_langserv_completion_provider_populate (GtkSourceCompletionProvider *provider
 
   ide_langserv_client_call_async (priv->client,
                                   "textDocument/completion",
-                                  g_steal_pointer (&params),
-                                  g_steal_pointer (&cancellable),
+                                  params,
+                                  cancellable,
                                   ide_langserv_completion_provider_complete_cb,
                                   g_steal_pointer (&state));