[gnome-builder] libide: release focus-buffer weak pointer during dispose

[Christian Hergert <chergert src gnome org>]

commit 7f763e25bb3fcbbcd4a4717c40c0aca4ffa3f557
Author: Christian Hergert <christian hergert me>
Date:   Thu Mar 12 22:36:46 2015 -0700

    libide: release focus-buffer weak pointer during dispose

 libide/ide-buffer-manager.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/libide/ide-buffer-manager.c b/libide/ide-buffer-manager.c
index 3a7b578..8d26eeb 100644
--- a/libide/ide-buffer-manager.c
+++ b/libide/ide-buffer-manager.c
@@ -781,6 +781,8 @@ ide_buffer_manager_dispose (GObject *object)
 {
   IdeBufferManager *self = (IdeBufferManager *)object;
 
+  ide_clear_weak_pointer (&self->focus_buffer);
+
   while (self->buffers->len)
     {
       IdeBuffer *buffer;