[libcxx-commits] [libcxx] [libc++][test] Cleanup typos and unnecessary semicolons (PR #73435)

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https://github.com/philnik777 approved this pull request.

LGTM with the broken test diff removed. Let's handle that in another PR. FWIW you could enable [`-Wc++11-extra-semi`](https://clang.llvm.org/docs/DiagnosticsReference.html#id103) in `libcxx/utils/libcxx/test/params.py` to avoid duplicate semicolons in the future.

https://github.com/llvm/llvm-project/pull/73435