[libcxx-commits] [libcxx] [libc++] Don't commit libcxx.imp (PR #89391)

[Nico Weber via libcxx-commits]

nico wrote:

We don't use any of the other generated files either. We have fixed `__config_site` and `__assertion_handler` files in our tree. They never (or rarely) change, and if they do, something tends to break loudly if we don't update our version. This file here changes more often, and the error case is that IWYU silently adds includes of internal headers.

https://github.com/llvm/llvm-project/pull/89391