Summary:
For now, how to check whether a widget is legacy or not
is to check flags in private data or static flag, which is set
during elm_legacy_add.
If Efl.Ui.Legacy interface is added, it can be easilly checked
by efl_isa(obj, EFL_UI_LEGACY_INTERFACE)
Reviewers: woohyun, jpeg, cedric, Jaehyun_Cho
Subscribers: conr2d, cedric, jpeg
Differential Revision: https://phab.enlightenment.org/D5748
Application developer could rewrite accessible information of naviframe item.
But view object - VIEW(item) - is not accessible from application side.
So the accessible information should be set to widget item.
This lets me narrow down the remaining cases of pointers across the EFL.
The void pointers will later need to be reevaluated on per-case basis and
replaced appropriately where possible/feasible.