[gnome-builder] egg-signal-group: Verify that the signal exists

[Garrett Regier <gregier src gnome org>]

commit 5afe1481c9f7c4fea93aefcf50458f786fca731c
Author: Garrett Regier <garrettregier gmail com>
Date:   Mon May 4 16:59:37 2015 -0700

    egg-signal-group: Verify that the signal exists

 contrib/egg/egg-signal-group.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/contrib/egg/egg-signal-group.c b/contrib/egg/egg-signal-group.c
index f46b451..071bd17 100644
--- a/contrib/egg/egg-signal-group.c
+++ b/contrib/egg/egg-signal-group.c
@@ -496,6 +496,8 @@ egg_signal_group_connect_object (EggSignalGroup *self,
 
   g_return_if_fail (EGG_IS_SIGNAL_GROUP (self));
   g_return_if_fail (detailed_signal != NULL);
+  g_return_if_fail (g_signal_parse_name (detailed_signal, self->target_type,
+                                         NULL, NULL, FALSE) != 0);
   g_return_if_fail (callback != NULL);
   g_return_if_fail (G_IS_OBJECT (object));