[llvm] [VPlan] Introduce VPInstructionWithType, use instead of VPScalarCast(NFC) (PR #129706)

[via llvm-commits]

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@@ -147,8 +147,8 @@ bool VPlanVerifier::verifyEVLRecipe(const VPInstruction &EVL) const {
             [&](const VPRecipeBase *S) { return VerifyEVLUse(*S, 2); })
         .Case<VPWidenLoadEVLRecipe, VPVectorEndPointerRecipe>(
             [&](const VPRecipeBase *R) { return VerifyEVLUse(*R, 1); })
-        .Case<VPScalarCastRecipe>(
-            [&](const VPScalarCastRecipe *S) { return VerifyEVLUse(*S, 0); })
+        .Case<VPInstructionWithType>(
+            [&](const auto *S) { return VerifyEVLUse(*S, 0); })
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ayalz wrote:

```suggestion
            [&](const VPRecipeBase *S) { return VerifyEVLUse(*S, 0); })
```
consistency?

https://github.com/llvm/llvm-project/pull/129706