[gtk/wip/antoniof/expression-autocleanup] gtk: Define the GtkExpression autocleanup func

[António Fernandes <antoniof src gnome org>]

commit 7764a1b66e5e98bb28b3f4acaeef04e082c41bfd
Author: António Fernandes <antoniojpfernandes gmail com>
Date:   Sun Jan 2 14:31:36 2022 +0000

    gtk: Define the GtkExpression autocleanup func

 gtk/gtk-autocleanups.h | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtk-autocleanups.h b/gtk/gtk-autocleanups.h
index 3ee5d261a5..8203c067a6 100644
--- a/gtk/gtk-autocleanups.h
+++ b/gtk/gtk-autocleanups.h
@@ -161,6 +161,7 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkTreeViewColumn, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkViewport, g_object_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkVolumeButton, g_object_unref)
 
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkExpression, gtk_expression_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkPaperSize, gtk_paper_size_free)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkRecentInfo, gtk_recent_info_unref)
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GtkTextIter, gtk_text_iter_free)