[llvm] [VPlan] Add VPValue for VF, use it for VPWidenIntOrFpInductionRecipe. (PR #95305)

[via llvm-commits]

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@@ -1241,6 +1258,7 @@ VPlan *VPlan::duplicate() {
   }
   Old2NewVPValues[&VectorTripCount] = &NewPlan->VectorTripCount;
   Old2NewVPValues[&VFxUF] = &NewPlan->VFxUF;
+  Old2NewVPValues[&VF] = &NewPlan->VF;
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ayalz wrote:

```suggestion
  Old2NewVPValues[&VF] = &NewPlan->VF;
  Old2NewVPValues[&VFxUF] = &NewPlan->VFxUF;
```

https://github.com/llvm/llvm-project/pull/95305