[vala] gtk+-2.0, gtk+-3.0: make IconTheme.list_icons.context nullable

[Evan Nemerson <evann src gnome org>]

commit abb2ee80f7f9586426f325456a9a1f52097659c1
Author: Evan Nemerson <evan coeus-group com>
Date:   Fri Dec 23 12:55:05 2011 -0800

    gtk+-2.0, gtk+-3.0: make IconTheme.list_icons.context nullable

 vapi/gtk+-2.0.vapi                       |    2 +-
 vapi/gtk+-3.0.vapi                       |    2 +-
 vapi/packages/gtk+-2.0/gtk+-2.0.metadata |    1 +
 vapi/packages/gtk+-3.0/gtk+-3.0.metadata |    1 +
 4 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gtk+-2.0.vapi b/vapi/gtk+-2.0.vapi
index 4d2c380..918d70c 100644
--- a/vapi/gtk+-2.0.vapi
+++ b/vapi/gtk+-2.0.vapi
@@ -2090,7 +2090,7 @@ namespace Gtk {
 		public void get_search_path (out string[] path);
 		public bool has_icon (string icon_name);
 		public GLib.List<string> list_contexts ();
-		public GLib.List<string> list_icons (string context);
+		public GLib.List<string> list_icons (string? context);
 		public Gdk.Pixbuf? load_icon (string icon_name, int size, Gtk.IconLookupFlags flags) throws GLib.Error;
 		public Gtk.IconInfo lookup_by_gicon (GLib.Icon icon, int size, Gtk.IconLookupFlags flags);
 		public Gtk.IconInfo lookup_icon (string icon_name, int size, Gtk.IconLookupFlags flags);
diff --git a/vapi/gtk+-3.0.vapi b/vapi/gtk+-3.0.vapi
index eb62cb0..19dd525 100644
--- a/vapi/gtk+-3.0.vapi
+++ b/vapi/gtk+-3.0.vapi
@@ -2222,7 +2222,7 @@ namespace Gtk {
 		public void get_search_path (out string[] path);
 		public bool has_icon (string icon_name);
 		public GLib.List<string> list_contexts ();
-		public GLib.List<string> list_icons (string context);
+		public GLib.List<string> list_icons (string? context);
 		public Gdk.Pixbuf? load_icon (string icon_name, int size, Gtk.IconLookupFlags flags) throws GLib.Error;
 		public Gtk.IconInfo lookup_by_gicon (GLib.Icon icon, int size, Gtk.IconLookupFlags flags);
 		public Gtk.IconInfo lookup_icon (string icon_name, int size, Gtk.IconLookupFlags flags);
diff --git a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
index 22f5da9..842664a 100644
--- a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
+++ b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
@@ -245,6 +245,7 @@ gtk_icon_theme_list_contexts transfer_ownership="1" type_arguments="string"
 gtk_icon_theme_get_search_path.path is_array="1" is_out="1" transfer_ownership="1"
 gtk_icon_theme_get_search_path.n_elements hidden="1"
 gtk_icon_theme_list_icons transfer_ownership="1" type_arguments="string"
+gtk_icon_theme_list_icons.context nullable="1"
 gtk_icon_theme_load_icon transfer_ownership="1" nullable="1"
 gtk_icon_theme_lookup_icon transfer_ownership="1"
 gtk_icon_theme_choose_icon transfer_ownership="1"
diff --git a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
index 8aba25a..d3629c7 100644
--- a/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
+++ b/vapi/packages/gtk+-3.0/gtk+-3.0.metadata
@@ -297,6 +297,7 @@ gtk_icon_theme_get_search_path.path is_array="1" is_out="1" transfer_ownership="
 gtk_icon_theme_get_search_path.n_elements hidden="1"
 gtk_icon_theme_list_contexts transfer_ownership="1" type_arguments="string"
 gtk_icon_theme_list_icons transfer_ownership="1" type_arguments="string"
+gtk_icon_theme_list_icons.context nullable="1"
 gtk_icon_theme_load_icon transfer_ownership="1" nullable="1"
 gtk_icon_theme_lookup_icon transfer_ownership="1"
 gtk_icon_theme_choose_icon transfer_ownership="1"