[gnome-shell] StWidget: Be more verbose when aborting in get_theme_node

[Adel Gadllah <agadllah src gnome org>]

commit 216be33fb9bc38d8d8a2ef16011e6d6c168b57d7
Author: Adel Gadllah <adel gadllah gmail com>
Date:   Sun Feb 13 22:48:35 2011 +0100

    StWidget: Be more verbose when aborting in get_theme_node
    
    Give some context to make it easier to track down the offender.

 src/st/st-widget.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/st/st-widget.c b/src/st/st-widget.c
index 09b2824..7057e90 100644
--- a/src/st/st-widget.c
+++ b/src/st/st-widget.c
@@ -565,7 +565,8 @@ st_widget_get_theme_node (StWidget *widget)
 
       if (stage == NULL)
         {
-          g_error ("st_widget_get_theme_node called on a widget not in a stage");
+          g_error ("st_widget_get_theme_node called on the widget %s which is not in the stage.",
+                    st_describe_actor (CLUTTER_ACTOR (widget)));
         }
 
       if (parent_node == NULL)