[vala] gtk+-3.0: Mark StyleProperties.register_property parse_func as nullable

[Luca Bruno <lucabru src gnome org>]

commit 2c34ed601a1be693d5182f7276283c841442a259
Author: Luca Bruno <lucabru src gnome org>
Date:   Wed Jun 29 23:28:37 2011 +0200

    gtk+-3.0: Mark StyleProperties.register_property parse_func as nullable
    
    Fixes bug 653671.

 vapi/gtk+-3.0.vapi                       |    2 +-
 vapi/packages/gtk+-3.0/gtk+-3.0.metadata |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index 22795ac..ecd3a42 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -3995,7 +3995,7 @@ namespace Gtk {
 		public static bool lookup_property (string property_name, Gtk.StylePropertyParser parse_func, out unowned GLib.ParamSpec pspec);
 		public void map_color (string name, Gtk.SymbolicColor color);
 		public void merge (Gtk.StyleProperties props_to_merge, bool replace);
-		public static void register_property (Gtk.StylePropertyParser parse_func, GLib.ParamSpec pspec);
+		public static void register_property (Gtk.StylePropertyParser? parse_func, GLib.ParamSpec pspec);
 		public void @set (Gtk.StateFlags state);
 		public void set_property (string property, Gtk.StateFlags state, GLib.Value value);
 		public void set_valist (Gtk.StateFlags state, void* args);
diff --git a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
index 2ff6eb1..493fa02 100644
--- a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
+++ b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
@@ -624,6 +624,7 @@ gtk_style_context_get_padding.padding hidden="1"
 gtk_style_context_get_style ellipsis="1"
 gtk_style_lookup_color.color is_out="1"
 gtk_style_get_style_property.value is_out="1"
+gtk_style_properties_register_property.parse_func nullable="1"
 GtkTable:row-spacing accessor_method="0"
 GtkTargetEntry is_value_type="1"
 GtkTargetList.list type_arguments="TargetPair"