[gxml] * add UNSUPPORTED_TYPE for serialization errors

[Richard Hans Schwarting <rschwart src gnome org>]

commit 4a555c4eefb9e94540e3d531c643052ef095114d
Author: Richard Schwarting <aquarichy gmail com>
Date:   Fri Jul 6 02:40:09 2012 -0400

    * add UNSUPPORTED_TYPE for serialization errors

 gxml/XmlSerializable.vala |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gxml/XmlSerializable.vala b/gxml/XmlSerializable.vala
index 6952513..d92036f 100644
--- a/gxml/XmlSerializable.vala
+++ b/gxml/XmlSerializable.vala
@@ -33,7 +33,8 @@ using GXmlDom;
 namespace GXmlDom {
 	public errordomain SerializationError {
 		UNKNOWN_TYPE,
-		UNKNOWN_PROPERTY
+		UNKNOWN_PROPERTY,
+		UNSUPPORTED_TYPE
 	}
 
 	public class Serializer : GLib.Object {