[Bug c++/88538] parse error with class nontype template parameter

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88538

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
It seems though that the current grammar doesn't allow braced-init-list as a
template-argument.  Should we raise a DR?