[clang] [compiler-rt] [libcxx] [llvm] [clang] Warn about memset/memcpy to NonTriviallyCopyable types (PR #111434)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

Thank you for this! It's missing a lot of test coverage that should be added to clang/test/SemaCXX and you should also add a release note to clang/docs/ReleaseNotes.rst so users know about the new diagnostic.

https://github.com/llvm/llvm-project/pull/111434