[gtkmm] Regenerate _signals.defs files.

[Murray Cumming <murrayc src gnome org>]

commit e7f2aa48b2f0657df07009b96a3ccbcef9d45bee
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Jan 20 13:07:49 2015 +0100

    Regenerate _signals.defs files.

 gtk/src/gtk_signals.defs |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/gtk_signals.defs b/gtk/src/gtk_signals.defs
index 24ef63d..cde9ada 100644
--- a/gtk/src/gtk_signals.defs
+++ b/gtk/src/gtk_signals.defs
@@ -10678,6 +10678,18 @@
   )
 )
 
+(define-signal extend-selection
+  (of-object "GtkTextView")
+  (return-type "gboolean")
+  (when "last")
+  (parameters
+    '("GtkTextExtendSelection" "p0")
+    '("GtkTextIter*" "p1")
+    '("GtkTextIter*" "p2")
+    '("GtkTextIter*" "p3")
+  )
+)
+
 (define-property pixels-above-lines
   (of-object "GtkTextView")
   (prop-type "GParamInt")