[clang] [clang][Sema] Fix crash when diagnosing candidates with parameter packs (PR #93079)

[Matheus Izvekov via cfe-commits]

https://github.com/mizvekov approved this pull request.

Can you also add a test based on my example?

With also a variant on that in which the bad conversion happens on the last element of the pack, instead of the last parameter.

Lastly, please namespace the tests with the name of, or add a comment naming, the GitHub issue.

Otherwise, LGTM.



https://github.com/llvm/llvm-project/pull/93079