[Bug c++/58040] Cannot take address-of public using-declaration of member from protected base class

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58040

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC, ICC, clang and MSVC all fail the same way.  Are we sure this is valid?

Even this fails:
    void(Derived:: *t)()  = &Derived::bar;