[libcxx-commits] [libcxx] [libc++] Diagnose unused variables of container types (PR #203084)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne commented:

I think this makes sense. While there is a lot of fallout in our test suite, that code isn't really typical code, so I don't think this is going to be nearly as verbose in normal code.

However, just to do our due diligence, can we try to build Clang/LLVM itself with this patch and see how much fallout there is (and get it fixed before we land this patch)?

Also, CC @llvm/libcxx-vendors 

https://github.com/llvm/llvm-project/pull/203084