[clang] [llvm] [CodeGen][clang] Use module metadata to mark hotpatchable modules (PR #142969)

[Alexandre Ganea via llvm-commits]

https://github.com/aganea commented:

This PR will all depend on the course taken on https://github.com/llvm/llvm-project/pull/142970

https://github.com/llvm/llvm-project/pull/142969