[vala] Fix criticals due to commit a31a2a77dd60e70137448751

[Luca Bruno <lucabru src gnome org>]

commit f19bdecce83d6280f465f36822554f37f2614be3
Author: Luca Bruno <lucabru src gnome org>
Date:   Sun Jun 9 21:36:32 2013 +0200

    Fix criticals due to commit a31a2a77dd60e70137448751

 codegen/valagsignalmodule.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valagsignalmodule.vala b/codegen/valagsignalmodule.vala
index 2e82316..a350edd 100644
--- a/codegen/valagsignalmodule.vala
+++ b/codegen/valagsignalmodule.vala
@@ -54,7 +54,7 @@ public class Vala.GSignalModule : GObjectModule {
                        return "gpointer";
                } else if (t is VoidType) {
                        return "void";
-               } else if (get_ccode_type_id (t.data_type) == get_ccode_type_id (string_type.data_type)) {
+               } else if (get_ccode_type_id (t) == get_ccode_type_id (string_type)) {
                        return "const char*";
                } else if (t.data_type is Class || t.data_type is Interface) {
                        return "gpointer";