[Bug c++/57977] zero-length const array in union prohibits default copy xtor

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57977

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It is not the zero length which is causing the copy constructor to be created
but rather the const part which causes the copy constructor to happen.