[glib/wip/chergert/garraylist] arraylist: increment list length during prepend to allocated list

[Christian Hergert <chergert src gnome org>]

commit dad8c25e9db1f94774de1ab1cd425f34ec449a86
Author: Christian Hergert <christian hergert me>
Date:   Sun Sep 13 04:57:27 2015 -0700

    arraylist: increment list length during prepend to allocated list

 glib/garraylist.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/glib/garraylist.c b/glib/garraylist.c
index 3a5b3cc..1778837 100644
--- a/glib/garraylist.c
+++ b/glib/garraylist.c
@@ -366,6 +366,8 @@ g_array_list_prepend (GArrayList *self,
 
   alloc->items [0].data = data;
 
+  alloc->len++;
+
   _g_array_list_update_pointers (alloc->items, alloc->len);
 
   DEBUG_ASSERT (alloc->len <= alloc->items_len);