[gtk] a11y: Fix function return type

[Benjamin Otte <otte src gnome org>]

commit c30968861f5c7c07dfe135ce508b9d2a7a31aea8
Author: Benjamin Otte <otte redhat com>
Date:   Tue Dec 18 01:20:36 2018 +0100

    a11y: Fix function return type
    
    Typo right there.

 gtk/a11y/gtkcellaccessible.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/a11y/gtkcellaccessible.c b/gtk/a11y/gtkcellaccessible.c
index ebbf096b3b..67f7dc8736 100644
--- a/gtk/a11y/gtkcellaccessible.c
+++ b/gtk/a11y/gtkcellaccessible.c
@@ -423,7 +423,7 @@ gtk_cell_accessible_get_row_header_cells (AtkTableCell *table_cell)
                                                           cell);
 }
 
-static gboolean
+static AtkObject *
 gtk_cell_accessible_get_table (AtkTableCell *table_cell)
 {
   AtkObject *obj;