[gtk/gtk-3-24: 1/5] Handle NSException from removeItemAtIndex.

[John Ralls <jralls src gnome org>]

commit 81c42faa5aa723a27209484dcfb1e14c6452e37a
Author: John Ralls <jralls ceridwen us>
Date:   Wed Dec 18 21:00:29 2019 -0800

    Handle NSException from removeItemAtIndex.

 gtk/gtkapplication-quartz-menu.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkapplication-quartz-menu.c b/gtk/gtkapplication-quartz-menu.c
index 0e2567fca7..0ed90f3207 100644
--- a/gtk/gtkapplication-quartz-menu.c
+++ b/gtk/gtkapplication-quartz-menu.c
@@ -393,8 +393,15 @@ menu_item_removed (gint     position,
                    gpointer user_data)
 {
   GNSMenu *menu = user_data;
-
-  [menu removeItemAtIndex:position];
+  @try
+  {
+    [menu removeItemAtIndex:position];
+  }
+  @catch(NSException *err)
+    {
+      g_critical("GNSMenu removeItemAtIndex: %d raised exception %s", position,
+                 [[err reason] UTF8String]);
+    }
 }
 
 @implementation GNSMenu