[gnome-builder/wip/chergert/bug1: 62/101] debugger: protect against disposal

[Christian Hergert <chergert src gnome org>]

commit 815f135fa9f9d47c314d6150b77204957ebd950a
Author: Christian Hergert <chergert redhat com>
Date:   Mon Aug 28 16:18:20 2017 -0700

    debugger: protect against disposal

 libide/debugger/ide-debugger-locals-view.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libide/debugger/ide-debugger-locals-view.c b/libide/debugger/ide-debugger-locals-view.c
index 64c645b..d801e6d 100644
--- a/libide/debugger/ide-debugger-locals-view.c
+++ b/libide/debugger/ide-debugger-locals-view.c
@@ -353,6 +353,10 @@ ide_debugger_locals_view_load_params_cb (GObject      *object,
       return;
     }
 
+  /* Disposal check */
+  if (self->tree_store == NULL)
+    return;
+
   gtk_tree_store_append (self->tree_store, &parent, NULL);
   gtk_tree_store_set (self->tree_store, &parent, 1, _("Parameters"), -1);