[gtk/gtk-3-22] a11y: Cast g_object_ref() to the right type

[Emmanuele Bassi <ebassi src gnome org>]

commit c229716796b8b2f424a1ada542768e0131b951a2
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun Feb 11 15:01:43 2018 +0000

    a11y: Cast g_object_ref() to the right type
    
    In GLib 2.56, g_object_ref() will check that you're assigning the return
    value to a variable of the same type you're passing in.

 gtk/a11y/gtklabelaccessible.c    | 2 +-
 gtk/a11y/gtktreeviewaccessible.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/a11y/gtklabelaccessible.c b/gtk/a11y/gtklabelaccessible.c
index add0861f93..29cd58ece8 100644
--- a/gtk/a11y/gtklabelaccessible.c
+++ b/gtk/a11y/gtklabelaccessible.c
@@ -84,7 +84,7 @@ gtk_label_accessible_link_impl_get_hyperlink (AtkHyperlinkImpl *atk_impl)
 {
   GtkLabelAccessibleLinkImpl *impl = (GtkLabelAccessibleLinkImpl *)atk_impl;
 
-  return g_object_ref (impl->link);
+  return ATK_HYPERLINK (g_object_ref (impl->link));
 }
 
 static void
diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index 095a700b7d..efb9c9bc53 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -469,7 +469,7 @@ gtk_tree_view_accessible_ref_child (AtkObject *obj,
   if (cell == NULL)
     cell = create_cell (tree_view, accessible, tree, node, tv_col);
 
-  return g_object_ref (cell);
+  return ATK_OBJECT (g_object_ref (cell));
 }
 
 static AtkStateSet*
@@ -562,7 +562,7 @@ gtk_tree_view_accessible_ref_accessible_at_point (AtkComponent *component,
   if (cell == NULL)
     cell = create_cell (tree_view, GTK_TREE_VIEW_ACCESSIBLE (component), tree, node, column);
 
-  return g_object_ref (cell);
+  return ATK_OBJECT (g_object_ref (cell));
 }
 
 static void