[Bug c++/94529] [8/9/10 Regression] Wrong error message for template member function specialization

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94529

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Started with r154518:

pt.c (determine_specialization): Give helpful error about missing "template<>".

        * pt.c (determine_specialization): Give helpful error about missing
        "template<>".