[libcxx-commits] [libcxx] [libc++] Mark LWG3133 as Complete and add valarray operator[] safety tests (PR #208145)

[Yordan Vásquez via libcxx-commits]

vyordan wrote:

@frederick-vs-ja 
The updated description looks good to me, thanks for the improvements! And thank you for the help and patience with my first PR.

https://github.com/llvm/llvm-project/pull/208145