[vala] girwriter: Fix writing type for out params

[Luca Bruno <lucabru src gnome org>]

commit 670a640a7c4deea0f93ca7653aa9b3791d559100
Author: Garrett Regier <garrett regier riftio com>
Date:   Tue Dec 16 08:04:07 2014 -0800

    girwriter: Fix writing type for out params
    
    The extra '*' is required for g_type_info_is_pointer() to
    return TRUE. This fixes PyGObject marshaling for an interface
    vfunc with a Boxed out param.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741604
    Signed-off-by: Garrett Regier <garrett regier riftio com>

 codegen/valagirwriter.vala |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/codegen/valagirwriter.vala b/codegen/valagirwriter.vala
index e855e1e..f0a75e2 100644
--- a/codegen/valagirwriter.vala
+++ b/codegen/valagirwriter.vala
@@ -1268,7 +1268,7 @@ public class Vala.GIRWriter : CodeVisitor {
                if (has_array_length) {
                        length_param_index = is_parameter ? index + 1 : index;
                }
-               write_type (type, length_param_index);
+               write_type (type, length_param_index, direction);
 
                indent--;
                write_indent ();
@@ -1286,7 +1286,7 @@ public class Vala.GIRWriter : CodeVisitor {
                buffer.append_printf (" glib:get-type=\"%sget_type\"", 
CCodeBaseModule.get_ccode_lower_case_prefix (symbol));
        }
 
-       private void write_type (DataType type, int index = -1) {
+       private void write_type (DataType type, int index = -1, ParameterDirection direction = 
ParameterDirection.IN) {
                if (type is ArrayType) {
                        var array_type = (ArrayType) type;
 
@@ -1319,7 +1319,7 @@ public class Vala.GIRWriter : CodeVisitor {
                        if ((type_name == "GLib.Array") || (type_name == "GLib.PtrArray")) {
                                is_array = true;
                        }
-                       buffer.append_printf ("<%s name=\"%s\" c:type=\"%s\"", is_array ? "array" : "type", 
gi_type_name (type.data_type), CCodeBaseModule.get_ccode_name (type));
+                       buffer.append_printf ("<%s name=\"%s\" c:type=\"%s%s\"", is_array ? "array" : "type", 
gi_type_name (type.data_type), CCodeBaseModule.get_ccode_name (type), direction == ParameterDirection.IN ? "" 
: "*");
 
                        List<DataType> type_arguments = type.get_type_arguments ();
                        if (type_arguments.size == 0) {