[clang] [clang][modules] HeaderSearch::MarkFileModuleHeader creates extra HeaderFileInfo, breaks PCM reuse (PR #89005)

[Sam McCall via cfe-commits]

sam-mccall wrote:

Ilya is out on vacation, I'm able to test this and will get started on that now (apologies for delay & thanks for digging into this)

https://github.com/llvm/llvm-project/pull/89005