[gnome-shell] popupMenu: Fix regular submenus

[Jasper St. Pierre <jstpierre src gnome org>]

commit 8583ca73e4198388fc7ce40f6ac8dd84dd4fa92e
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue May 14 13:58:10 2013 -0400

    popupMenu: Fix regular submenus
    
    This method was originally private, but it was renamed quickly
    before landing, and I forgot to update it.

 js/ui/popupMenu.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 6f76a27..eb683ff 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -1524,7 +1524,7 @@ const PopupSubMenuMenuItem = new Lang.Class({
     },
 
     _setOpenState: function(open) {
-        this._setSubmenuShown(open);
+        this.setSubmenuShown(open);
     },
 
     _getOpenState: function() {