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

[via llvm-commits]

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@@ -259,20 +259,17 @@ Type *VPTypeAnalysis::inferScalarType(const VPValue *V) {
                 VPPartialReductionRecipe>([this](const VPRecipeBase *R) {
             return inferScalarType(R->getOperand(0));
           })
+          .Case<VPInstructionWithType, VPWidenIntrinsicRecipe>(
+              [](const auto *R) { return R->getResultType(); })
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ayalz wrote:

Worth noting that this case should appear before the next to catch VPInstructionWithType before its parent VPInstruction?

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