[llvm] [VPlan] Fix nowrap flags for strided access pointers from SCEV (PR #209453)

[Ramkumar Ramachandra via llvm-commits]

https://github.com/artagnon commented:

Oh, it would be good to re-use DerivedIV here: I was trying that, and it's blocked on https://github.com/llvm/llvm-project/pull/205908 to avoid regressing the flags?

https://github.com/llvm/llvm-project/pull/209453