GLib 2.44 has a GListStore type which is GLib.ListStore in Vala, resulting in an ambigous type and compile failure.

Fix by using the full type name.

Upstream-Status: Backport
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/extensions/history-list.vala b/extensions/history-list.vala
index 3a864b1..f309c0c 100644
--- a/extensions/history-list.vala
+++ b/extensions/history-list.vala
@@ -319,7 +319,7 @@ namespace HistoryList {
         }
 
         private void create_widgets () {
-            ListStore model;
+            Gtk.ListStore model;
             TreeIter iter;
             TreeIter? active_iter = null;
 
@@ -331,7 +331,7 @@ namespace HistoryList {
 
             var tab_closing_behavior = this.hl_manager.get_integer ("TabClosingBehavior");
 
-            model = new ListStore (2, typeof (string), typeof (int));
+            model = new Gtk.ListStore (2, typeof (string), typeof (int));
 
             model.append (out iter);
             model.set (iter, TabClosingBehaviorModel.TEXT, _("Do nothing"),