a while back we have moved event submission from custom lists to eo
events. We also merged together the freeze and thaw functions, however,
this brought up one bug. smart_callbacks and the likes (those that used
custom lists before) are not effected by the legacy freeze and thaw
functions. This means, we should declare these legacy wrapper objects
unfreezable in order to obtain this behaviour.
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Reviewed-by: SangHyeon Jade Lee <sh10233.lee@samsung.com>
Differential Revision: https://phab.enlightenment.org/D10016