[libcxx-commits] [libcxx] [libcxxabi] Revert "[libcxx] Use alias for detecting overriden function" (PR #124431)

[Louis Dionne via libcxx-commits]

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

This is unfortunate since this caused lots of merge conflict churn downstream over here, but I agree this is probably the best path forward for now since LLVM 20 is branching soon.

https://github.com/llvm/llvm-project/pull/124431