[Bug c++/52625] [9/10 Regression] Incorrect specialization semantics of friend class template declaration

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52625

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:de47fb31b13e6bd20d693cb1eef47cbfb5de20ce

commit r10-9850-gde47fb31b13e6bd20d693cb1eef47cbfb5de20ce
Author: Jason Merrill <ja...@redhat.com>
Date:   Wed Apr 7 15:38:07 2021 -0400

    c++: base template friend [PR52625]

    Here we were mistakenly treating the injected-class-name as a partial
    specialization.

    gcc/cp/ChangeLog:

            PR c++/52625
            * pt.c (maybe_process_partial_specialization): Check
            DECL_SELF_REFERENCE_P.

    gcc/testsuite/ChangeLog:

            PR c++/52625
            * g++.dg/template/friend70.C: New test.