[glib] Simplify code that uses g_queue_insert_before() and insert_after()

[Sébastien Wilmet <swilmet src gnome org>]

commit 20f6cc2a10ba26860e7a6d27c100deadb5497772
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Nov 5 14:00:45 2014 +0100

    Simplify code that uses g_queue_insert_before() and insert_after()
    
    g_queue_insert_before() and g_queue_insert_after() now accept a NULL
    sibling.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736620

 glib/gqueue.c         |    5 +----
 glib/tests/sequence.c |   16 +++-------------
 2 files changed, 4 insertions(+), 17 deletions(-)
---
diff --git a/glib/gqueue.c b/glib/gqueue.c
index d3c5ca5..3176614 100644
--- a/glib/gqueue.c
+++ b/glib/gqueue.c
@@ -1072,8 +1072,5 @@ g_queue_insert_sorted (GQueue           *queue,
   while (list && func (list->data, data, user_data) < 0)
     list = list->next;
 
-  if (list)
-    g_queue_insert_before (queue, list, data);
-  else
-    g_queue_push_tail (queue, data);
+  g_queue_insert_before (queue, list, data);
 }
diff --git a/glib/tests/sequence.c b/glib/tests/sequence.c
index 8b1d64b..fcc8385 100644
--- a/glib/tests/sequence.c
+++ b/glib/tests/sequence.c
@@ -410,16 +410,6 @@ dump_info (SequenceInfo *seq)
 #endif
 }
 
-/* A version of g_queue_insert_before() that appends if link is NULL */
-static void
-queue_insert_before (SequenceInfo *seq, GList *link, gpointer data)
-{
-  if (link)
-    g_queue_insert_before (seq->queue, link, data);
-  else
-    g_queue_push_tail (seq->queue, data);
-}
-
 static void
 run_random_tests (gconstpointer d)
 {
@@ -611,7 +601,7 @@ run_random_tests (gconstpointer d)
 
                 new_iter = g_sequence_insert_before (iter, new_item (seq));
 
-                queue_insert_before (seq, link, new_iter);
+                g_queue_insert_before (seq->queue, link, new_iter);
               }
           }
           break;
@@ -630,7 +620,7 @@ run_random_tests (gconstpointer d)
                 if (!link2)
                   g_assert (g_sequence_iter_is_end (iter2));
 
-                queue_insert_before (seq2, link2, link1->data);
+                g_queue_insert_before (seq2->queue, link2, link1->data);
 
                 g_queue_delete_link (seq1->queue, link1);
 
@@ -864,7 +854,7 @@ run_random_tests (gconstpointer d)
                 Item *item = get_item (list->data);
 
                 g_assert (dst->queue);
-                queue_insert_before (dst, dst_link, list->data);
+                g_queue_insert_before (dst->queue, dst_link, list->data);
                 g_queue_delete_link (src->queue, list);
 
                 g_assert (item->seq == src);