[glib] Fix unused variable warning

[Alexander Larsson <alexl src gnome org>]

commit 026340c5fcafd63b38a0424a0b83ae3a1c551aa7
Author: Alexander Larsson <alexl redhat com>
Date:   Tue Mar 6 11:35:17 2012 +0100

    Fix unused variable warning

 gobject/gsignal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gobject/gsignal.c b/gobject/gsignal.c
index 2a36d15..ff83496 100644
--- a/gobject/gsignal.c
+++ b/gobject/gsignal.c
@@ -3183,7 +3183,7 @@ g_signal_emit_valist (gpointer instance,
 	    return_accu = &emission_return;
 
 	  emission.instance = instance;
-	  emission.ihint.signal_id = node->signal_id;
+	  emission.ihint.signal_id = signal_id;
 	  emission.ihint.detail = detail;
 	  emission.ihint.run_type = run_type;
 	  emission.state = EMISSION_RUN;