[Bug c++/81917] [6/7/8 Regression] internal compiler error: in finish_member_declaration, at cp/semantics.c:3004

["paolo.carlini at oracle dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81917

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This variant causes the same ICE and it's a tad cleaner:

template <typename> using a = void;
template <typename, typename = void> struct b
{
  typedef int c;
}; template <typename d> class b<d, a<typename d::e>>;
template <typename d, typename = typename b<d>::c> class f;
template <typename> class g { };
template <typename, typename> class h
{
  class i;
  typedef g<f<i>> j; class i
  {
    j k;
  };
}; typename h<int, int>::