[llvm] Reapply "[CodeGen] Introduce `MachineDomTreeUpdater`" (#96846) (PR #96851)

[Jakub Kuderski via llvm-commits]

https://github.com/kuhar commented:

Could you explain what the issues were with the initial PR that caused it to fail and how this PR fixes these?

https://github.com/llvm/llvm-project/pull/96851