[gnome-builder] completion: remove deprecated gtk_source_completion_item_new

[Sébastien Lafargue <slafargue src gnome org>]

commit 9a165d9645038ae0c565ddb44e35ec0b920231a7
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Fri Oct 28 14:12:59 2016 +0200

    completion: remove deprecated gtk_source_completion_item_new
    
    Instead, use the g_object_new constructor

 libide/langserv/ide-langserv-completion-provider.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/libide/langserv/ide-langserv-completion-provider.c 
b/libide/langserv/ide-langserv-completion-provider.c
index 2b16eef..42865a0 100644
--- a/libide/langserv/ide-langserv-completion-provider.c
+++ b/libide/langserv/ide-langserv-completion-provider.c
@@ -276,7 +276,12 @@ ide_langserv_completion_provider_complete_cb (GObject      *object,
           else
             full_label = g_strdup (label);
 
-          item = gtk_source_completion_item_new (full_label, label, NULL, NULL);
+          //item = gtk_source_completion_item_new (full_label, label, NULL, NULL);
+          item = g_object_new (GTK_SOURCE_TYPE_COMPLETION_ITEM,
+                               "label", full_label,
+                               "text", label,
+                               NULL);
+
           list = g_list_prepend (list, g_steal_pointer (&item));
         }
     }