[llvm] MachineFunctionPass: Clear properties before running function (PR #67962)

[Matthias Braun via llvm-commits]

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

I think the whole `getClearedProperties()` and `getSetProperties()` design is an error and we should rather set/clear properties as necessary within `runOnMachineFunction`.

Short of changing this I guess I am fine with this when tests pass. LGTM

https://github.com/llvm/llvm-project/pull/67962