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

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inquisitivecrystal wrote:

Would anyone feel comfortable approving this? It'd be lovely to get it into the upcoming release, and full CI runs take a while, even assuming they don't show any problems. That being said, this is a large PR, and I understand if people feel that more review is needed.

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