[evince] [shell] Add missing cast

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 5895fd0263840bb7c16ef1c4154404cd80839b9b
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Wed Aug 19 15:32:52 2009 +0200

    [shell] Add missing cast

 shell/ev-sidebar-attachments.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/shell/ev-sidebar-attachments.c b/shell/ev-sidebar-attachments.c
index e0779f0..b63c5ef 100644
--- a/shell/ev-sidebar-attachments.c
+++ b/shell/ev-sidebar-attachments.c
@@ -687,7 +687,7 @@ ev_sidebar_attachments_support_document (EvSidebarPage   *sidebar_page,
 					 EvDocument      *document)
 {
 	return (EV_IS_DOCUMENT_ATTACHMENTS (document) &&
-		ev_document_attachments_has_attachments (document));
+		ev_document_attachments_has_attachments (EV_DOCUMENT_ATTACHMENTS (document)));
 }
 
 static const gchar*