[Bug c++/70353] [5/6 regression] ICE on __PRETTY_FUNCTION__ in a constexpr function

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70353
Bug 70353 depends on bug 70422, which changed state.

Bug 70422 Summary: [6 regression] Bootstrap comparison failure
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70422

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED