[vala] gtksourceview-3.0: update to latest git

[Evan Nemerson <evann src gnome org>]

commit 2ca24ab47cf75c89b30856c5d4c9418c51531693
Author: Evan Nemerson <evan nemerson com>
Date:   Tue Apr 8 12:16:36 2014 -0700

    gtksourceview-3.0: update to latest git

 vapi/gtksourceview-3.0.vapi |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vapi/gtksourceview-3.0.vapi b/vapi/gtksourceview-3.0.vapi
index d1f501b..f082fed 100644
--- a/vapi/gtksourceview-3.0.vapi
+++ b/vapi/gtksourceview-3.0.vapi
@@ -30,8 +30,8 @@ namespace Gtk {
                public GLib.SList<weak Gtk.SourceMark> get_source_marks_at_line (int line, string? category);
                public unowned Gtk.SourceStyleScheme get_style_scheme ();
                public unowned Gtk.SourceUndoManager get_undo_manager ();
-               public bool iter_backward_to_context_class_toggle (Gtk.TextIter iter, string context_class);
-               public bool iter_forward_to_context_class_toggle (Gtk.TextIter iter, string context_class);
+               public bool iter_backward_to_context_class_toggle (ref Gtk.TextIter iter, string 
context_class);
+               public bool iter_forward_to_context_class_toggle (ref Gtk.TextIter iter, string 
context_class);
                public bool iter_has_context_class (Gtk.TextIter iter, string context_class);
                public void remove_source_marks (Gtk.TextIter start, Gtk.TextIter end, string? category);
                public void set_highlight_matching_brackets (bool highlight);