[libc-commits] [clang] [clang-tools-extra] [compiler-rt] [flang] [libc] [libcxx] [llvm] [mlir] [polly] ✏️ Fix "is is" typos (PR #206288)

[Benjamin Maxwell via libc-commits]

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

LGTM, but using emojis in PR/commit titles it not typical for LLVM. Also, this sort of change would be typically marked an NFC (non-functional change).

https://github.com/llvm/llvm-project/pull/206288