Debugger: Consolidate RunControl creation

Export factory, de-export plugin, to remove one indirection

Change-Id: I13a46460d07d5ded6b26f2b5ceccd01142fb10e8
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

src/plugins/fakevim/fakevimplugin.cpp

@@ -385,7 +385,6 @@ private slots:
     void updateVimRcWidgets();
 
 private:
-    friend class DebuggerPlugin;
     QPointer<QWidget> m_widget;
     Ui::FakeVimOptionPage m_ui;
     Utils::SavedActionSet m_group;