For example, the widget type of elm_button was "Elm_Button".
But, the object which is created by elm_button_add() will
return its widget type "Efl.Ui.Button_Legacy".
It is not legacy name. It should be fixed to return "Elm_Button".
I don't know when but eolian start to make class name with ".".
So, it should be converted to "_" for all widgets.