Summary:
when set/unset icon and text,
signal "elm,state,[part],visible/hidden" is emitted.
This is wrong because visible/hidden should be handled by
Efl.Gfx.visible, not Efl.Text nor Efl.Content.
This should be changed into elm,state,[part],set/unset"
All relating edc should be fixed.
Test Plan: run elementary_test->button, Efl.Ui.Button
Reviewers: jpeg, cedric, woohyun, Jaehyun_Cho
Differential Revision: https://phab.enlightenment.org/D5798
Signed-off-by: Cedric Bail <cedric@osg.samsung.com>
73f8b3b78f