[vala/staging] glib-2.0: Add Queue.clear_full() since 2.60

[Rico Tzschichholz <ricotz src gnome org>]

commit 3f530cdf71d1a7709a1786eddf8fbe34ca963e64
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Jan 17 14:19:48 2019 +0100

    glib-2.0: Add Queue.clear_full() since 2.60

 vapi/glib-2.0.vapi | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index 7e53fc46f..933475419 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -4670,6 +4670,8 @@ namespace GLib {
 
                [Version (since = "2.14")]
                public void clear ();
+               [Version (since = "2.60")]
+               public void clear_full (GLib.DestroyNotify? free_func);
                public bool is_empty ();
                [Version (since = "2.4")]
                public uint get_length ();