[Bug c++/85127] Members implementation outside class doesn't compile if class name is an alias from a using

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85127

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
EDG rejects it too:

"us.cc", line 11: error: template argument list must match the parameter list
  void B<T>::foo() {
       ^

1 error detected in the compilation of "us.cc".


I'm not aware of any rule making this invalid, so I agree it should be
accepted.