[llvm] [nfc][mlgo] Incrementally update DominatorTreeAnalysis in FunctionPropertiesAnalysis (PR #104867)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

> This is a naïve question, but is the FunctionPropertiesUpdater's only user the MLInline advisor? 

Yes, afaik

> Is it possible for this to be used by the regular Inliner so DT is not recomputed after inlining?

AFAIK, DT / LI aren't used for the non-ML InlineCost calculation, but indeed, we could use their patch-ability to keep them "fresh" during inlining and avoid recalculating them, if that becomes an issue in some scenarios.

https://github.com/llvm/llvm-project/pull/104867