[clang] [clang][modules] Introduce a flag to keep redundant module lookups on relocation checks (PR #219107)

[Volodymyr Sapsai via cfe-commits]

https://github.com/vsapsai approved this pull request.

The code looks good to me. I'm not sure yet there are no better alternatives. But don't want to make perfect the enemy of good and block you.

https://github.com/llvm/llvm-project/pull/219107