[libcxx-commits] [libcxx] [libc++] Partially implement P2846R6: `reserve_hint` (PR #206385)

[Hristo Hristov via libcxx-commits]

https://github.com/Zingam commented:

I have started the requested second review. It make take me a while to complete, please, bear with me. So far looks OK. I have a few nits (you can ignore or apply as you wish) mostly.

https://github.com/llvm/llvm-project/pull/206385