[Bug c++/83928] implicit conversion of literal class type to unscoped enumeration can not be used as array size

[smw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83928

--- Comment #1 from Stephen M. Webb <smw at gcc dot gnu.org> ---
This appears to have been fixed as of the GCC 8.1 and later.