[Bug c++/95263] [11 Regression] ICE in lookup_template_class_1 since r11-504-g74744bb1f2847b5b

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95263

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathan Sidwell <nathan@gcc.gnu.org>:

https://gcc.gnu.org/g:ac9face8d26ea4b6aa72902ecc22e89ef00763c5

commit r11-661-gac9face8d26ea4b6aa72902ecc22e89ef00763c5
Author: Nathan Sidwell <nathan@acm.org>
Date:   Wed May 27 09:50:15 2020 -0400

    c++: Revert alias template change [pr95263]

    Turns out templates are more complicated than you think, even when you
    know they are more complicated than you think.  Reverting this change.

            PR c++/95263
            * pt.c (lookup_template_class_1): Restore alias template mutation.