[Bug c++/116913] [15 regression] ICE when building firefox-130.0.1 (tree check: expected var_decl or function_decl or field_decl or type_decl or concept_decl or template_decl, have using_decl in cp_parser_alias_declaration, at cp/parser.cc:22826) since r15-3938-gb9ac51a84

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116913

--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathaniel Shead <nsh...@gcc.gnu.org>:

https://gcc.gnu.org/g:6a1e109158940ce3a2d1ceed3e1b614ea6c9a2de

commit r15-4060-g6a1e109158940ce3a2d1ceed3e1b614ea6c9a2de
Author: Nathaniel Shead <nathanielosh...@gmail.com>
Date:   Fri Oct 4 10:46:57 2024 +1000

    c++: Return the underlying decl rather than the USING_DECL from
update_binding [PR116913]

    Users of pushdecl assume that the returned decl will be a possibly
    updated decl matching the one that was passed in.  My r15-3910 change
    broke this since in some cases we would now return USING_DECLs; this
    patch fixes the situation.

            PR c++/116913

    gcc/cp/ChangeLog:

            * name-lookup.cc (update_binding): Return the strip_using'd old
            decl rather than the binding.

    gcc/testsuite/ChangeLog:

            * g++.dg/lookup/using70.C: New test.

    Signed-off-by: Nathaniel Shead <nathanielosh...@gmail.com>