[clang] [clang-tools-extra] [compiler-rt] [flang] [libc] [libcxx] [lldb] [llvm] [mlir] [openmp] Fix typos and spelling errors across codebase (PR #156270)

[Valentin Clement バレンタイン クレメン via llvm-commits]

https://github.com/clementval commented:

Please split the PR by subproject to it is easier to review and approve. 

https://github.com/llvm/llvm-project/pull/156270