[vala] Support calling async methods with varargs

[Luca Bruno <lucabru src gnome org>]

commit c5383d51a5b442871b08e19f5d5faf63587516cf
Author: Luca Bruno <lucabru src gnome org>
Date:   Sun May 5 21:30:03 2013 +0200

    Support calling async methods with varargs

 vala/valamethod.vala |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/vala/valamethod.vala b/vala/valamethod.vala
index cf02d60..1909fb4 100644
--- a/vala/valamethod.vala
+++ b/vala/valamethod.vala
@@ -879,8 +879,11 @@ public class Vala.Method : Subroutine {
                var glib_ns = CodeContext.get ().root.scope.lookup ("GLib");
 
                var params = new ArrayList<Parameter> ();
+               Parameter ellipsis = null;
                foreach (var param in parameters) {
-                       if (param.direction == ParameterDirection.IN) {
+                       if (param.ellipsis) {
+                               ellipsis = param;
+                       } else if (param.direction == ParameterDirection.IN) {
                                params.add (param);
                        }
                }
@@ -897,6 +900,10 @@ public class Vala.Method : Subroutine {
 
                params.add (callback_param);
 
+               if (ellipsis != null) {
+                       params.add (ellipsis);
+               }
+
                return params;
        }