[atkmm] Object: Fix the type of property_accessible_role()

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 1af69622d7cdb1ac67530a7e1bdea85db2cb99c6
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Thu Nov 1 16:48:56 2018 +0100

    Object: Fix the type of property_accessible_role()
    
    It has been changed in atk.

 atk/src/object.hg | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/atk/src/object.hg b/atk/src/object.hg
index 4403a2c..9612b00 100644
--- a/atk/src/object.hg
+++ b/atk/src/object.hg
@@ -94,7 +94,7 @@ public:
   _WRAP_PROPERTY("accessible-description", Glib::ustring)
   _WRAP_PROPERTY("accessible-parent", Glib::RefPtr<Atk::Object>)
   _WRAP_PROPERTY("accessible-value", double)
-  _WRAP_PROPERTY("accessible-role", int)
+  _WRAP_PROPERTY("accessible-role", Role)
   _WRAP_PROPERTY("accessible-component-layer", int)
   _WRAP_PROPERTY("accessible-component-mdi-zorder", int)
   _WRAP_PROPERTY("accessible-table-caption", Glib::ustring)