[Bug c/118765] c23 tag matching broken for multiple redeclarations of unions and typedefs

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118765

--- Comment #4 from Sam James <sjames at gcc dot gnu.org> ---
You're right - I used a mangled version of the testcase when playing, sorry!