[libcxx-commits] [libcxx] [libc++] First attempt to regroup a few modules in the modulemap (PR #98214)

[Vassil Vassilev via libcxx-commits]

vgvassilev wrote:

> I just did some experiments with regrouping modules in the exact same way and I managed to get an absolutely gigantic speedup in our clang modules tests (the `.gen.py` ones). I got from ~40 seconds to ~3 seconds for running these tests.
> 
> So I think this approach is fruitful -- I'll merge this and start opening PRs that work towards what I have locally.

Hi @ldionne. Do you have stats on how many standalone modules we get before and after this PR?

https://github.com/llvm/llvm-project/pull/98214