[gtk/matthiasc/expression: 1/2] Add automagic for GtkExpression

[Matthias Clasen <matthiasc src gnome org>]

commit c9850f5569f0ce88bb522a17234c86a90210ccc3
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 28 12:59:31 2019 -0500

    Add automagic for GtkExpression
    
    This is handy in tests.

 gtk/gtk-autocleanups.h | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtk-autocleanups.h b/gtk/gtk-autocleanups.h
index 3a676967da..3a4a93b0f2 100644
--- a/gtk/gtk-autocleanups.h
+++ b/gtk/gtk-autocleanups.h
@@ -178,6 +178,7 @@ 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(GtkSelectionData, gtk_selection_data_free)