[clang] [Modules] Fix cyclic dependencies in clang (PR #102348)

[Steven Wu via cfe-commits]

cachemeifyoucan wrote:

Maybe the next step is to get rid of `"clang/Frontend/PCHContainerOperations.h"` but I don't know why it was there in the first place. 

https://github.com/llvm/llvm-project/pull/102348