[gnome-builder] editor: more precondition checks for sanity

[Christian Hergert <chergert src gnome org>]

commit c2621f5e1da4cb32e29b729782b92e4cfae3623c
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jul 14 16:54:04 2017 -0700

    editor: more precondition checks for sanity

 libide/editor/ide-editor-view-addin.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libide/editor/ide-editor-view-addin.c b/libide/editor/ide-editor-view-addin.c
index 5211fd6..dd47c8c 100644
--- a/libide/editor/ide-editor-view-addin.c
+++ b/libide/editor/ide-editor-view-addin.c
@@ -84,6 +84,7 @@ ide_editor_view_addin_find_by_module_name (IdeEditorView *view,
   PeasPluginInfo *plugin_info;
 
   g_return_val_if_fail (IDE_IS_EDITOR_VIEW (view), NULL);
+  g_return_val_if_fail (view->addins != NULL, NULL);
   g_return_val_if_fail (module_name != NULL, NULL);
 
   plugin_info = peas_engine_get_plugin_info (peas_engine_get_default (), module_name);