[llvm] [LLVM] Fix typo "CxtI" (PR #226137)

[Nikita Popov via llvm-commits]

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

LGTM based on a quick scroll through.

Please wait a bit before landing in case someone feels strongly about the choice of name...

https://github.com/llvm/llvm-project/pull/226137