[VPlan] Pass some functions directly to all_of (NFC).

Remove some unneeded lambdas.

Author: fhahn

llvm/lib/Transforms/Vectorize/VPlanUtils.cpp

@@ -92,8 +92,7 @@ bool vputils::isUniformAcrossVFsAndUFs(VPValue *V) {
               m_VPInstruction<VPInstruction::CanonicalIVIncrementForPart>(
                   m_VPValue())))
       return false;
-    return all_of(R->operands(),
-                  [](VPValue *Op) { return isUniformAcrossVFsAndUFs(Op); });
+    return all_of(R->operands(), isUniformAcrossVFsAndUFs);
   }
 
   auto *CanonicalIV = R->getParent()->getPlan()->getCanonicalIV();
@@ -110,8 +109,7 @@ bool vputils::isUniformAcrossVFsAndUFs(VPValue *V) {
         // TODO: Further relax the restrictions.
         return R->isUniform() &&
                (isa<LoadInst, StoreInst>(R->getUnderlyingValue())) &&
-               all_of(R->operands(),
-                      [](VPValue *Op) { return isUniformAcrossVFsAndUFs(Op); });
+               all_of(R->operands(), isUniformAcrossVFsAndUFs);
       })
       .Case<VPScalarCastRecipe, VPWidenCastRecipe>([](const auto *R) {
         // A cast is uniform according to its operand.