[clang] [clang][modules] Print library module manifest path. (PR #76451)

[Mark de Wever via cfe-commits]

mordante wrote:

> If this is the right thing to do (i.e., printing this information as part of `-print-search-dirs`), then perhaps it's still worth it to try and fix? Once you add a separate option, you will have to drag it forever (for backwards compatibility).
I have a feeling how deep that rabbit hole is. This is not something I really want to dive into. Especially since I'm unfamiliar with this part of the code.



https://github.com/llvm/llvm-project/pull/76451