[Bug c++/91418] Nested class of templated class cannot declare parent class friend

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91418

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think there is a defect in this area of the standard and most likely resolved
by the P1787R6 paper.