[clang] -ast-dump-decl-types crashes on codes involving concepts #94928 (PR #108142)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

Thank you for the fix! Can you also add a release note to `clang/docs/ReleaseNotes.rst` so that users know about the fix?

Also, please add the example code from the linked issue to `ast-dump-concepts.cpp` so that we more clearly demonstrate that the issue was fixed.

https://github.com/llvm/llvm-project/pull/108142