[libc-commits] [libc] [libc][docs] adds macro handling, POSIX status, and validation to docgen (PR #89421)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

> Do we also want to eventually add symbolic constants, types, etc. to the impl status docs?

Possibly.  Things get funky with some types.  I worry if there's any explosion in symbolic constants. Nothing comes to mind.  Worth filing a bug to track those separate from this PR though.

https://github.com/llvm/llvm-project/pull/89421