[Bug c++/66564] ICE on explicit instantiation of nested template class

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66564

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |accepts-invalid

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:

  template<typename Args>
  struct A {
   template<typename>
   struct B {};
  };

template<>
  template<typename Args>
  struct A<Args>::B<Args> {};

  int main() {
   A<int>::B<int> b;
  }

Without the definition of b in main, we accept the invalid code.