[gnome-builder] add :split and :vsplit

[Christian Hergert <chergert src gnome org>]

commit e74cd020a04f9d8713b07425dffe85a4c3384405
Author: Christian Hergert <christian hergert me>
Date:   Sat Mar 21 17:14:18 2015 -0700

    add :split and :vsplit

 src/vim/gb-vim.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/vim/gb-vim.c b/src/vim/gb-vim.c
index 88790b2..a1a7b3f 100644
--- a/src/vim/gb-vim.c
+++ b/src/vim/gb-vim.c
@@ -450,6 +450,7 @@ gb_vim_command_split (GtkSourceView  *source_view,
                       const gchar    *options,
                       GError        **error)
 {
+  gb_widget_activate_action (GTK_WIDGET (source_view), "view-stack", "split-down", NULL);
   return TRUE;
 }
 
@@ -459,6 +460,7 @@ gb_vim_command_vsplit (GtkSourceView  *source_view,
                        const gchar    *options,
                        GError        **error)
 {
+  gb_widget_activate_action (GTK_WIDGET (source_view), "view-stack", "split-left", NULL);
   return TRUE;
 }