[llvm] [Analysis] Teach ScalarEvolution::getRangeRef about more dereferenceable objects (PR #104778)

[David Sherwood via llvm-commits]

david-arm wrote:

> > @fhahn @nikic Unless there are any objections I plan to land this patch later today as I think I've now addressed all concerns. Thanks!
> 
> Looks like the latest pre-commit test build has `Transforms/PhaseOrdering/scev-custom-dl.ll` failing. Could you double check if that's related to the patch?

Yes it - good spot! I've fixed it now and run make check-all against HEAD of LLVM locally.

https://github.com/llvm/llvm-project/pull/104778