[llvm-branch-commits] [llvm] [mlir] Refactor ModuleToObject to offer more flexibility to subclass (NFC) (PR #71165)

[Mehdi Amini via llvm-branch-commits]

https://github.com/joker-eph created https://github.com/llvm/llvm-project/pull/71165

Some specific implementation of the offload may want more customization, and
even avoid using LLVM in-tree to dispatch the ISA translation to a custom
solution. This refactoring makes it possible for such implementation to work
without even configuring the target backend in LLVM.