[turbofan] Check node input/use consistency for changed operators and new nodes.

test/cctest/compiler/test-machine-operator-reducer.cc

Index: test/cctest/compiler/test-machine-operator-reducer.cc
diff --git a/test/cctest/compiler/test-machine-operator-reducer.cc b/test/cctest/compiler/test-machine-operator-reducer.cc
index 592c95ca05f9d71fe71ce172d26790757fc44a96..c02e7e5751b3037e88a3d95ea98c40d69b5fad53 100644
--- a/test/cctest/compiler/test-machine-operator-reducer.cc
+++ b/test/cctest/compiler/test-machine-operator-reducer.cc
@@ -715,7 +715,7 @@ TEST(ReduceLoadStore) {
   {
     Node* store = R.graph.NewNode(
         R.machine.Store(StoreRepresentation(kMachInt32, kNoWriteBarrier)), base,
-        index, load, load, load);
+        index, load, load, R.graph.start());
     MachineOperatorReducer reducer(&R.jsgraph);
     Reduction reduction = reducer.Reduce(store);
     CHECK(!reduction.Changed());  // stores should not be reduced.