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

test/unittests/compiler/value-numbering-reducer-unittest.cc

Index: test/unittests/compiler/value-numbering-reducer-unittest.cc
diff --git a/test/unittests/compiler/value-numbering-reducer-unittest.cc b/test/unittests/compiler/value-numbering-reducer-unittest.cc
index a97c4aa664afba30c6c7e951c17b78498b298b7b..c003033940024d8ec500e4b9b9fac2e464d979f5 100644
--- a/test/unittests/compiler/value-numbering-reducer-unittest.cc
+++ b/test/unittests/compiler/value-numbering-reducer-unittest.cc
@@ -73,8 +73,7 @@ TEST_F(ValueNumberingReducerTest, OperatorEqualityNotIdentity) {
   static const size_t kMaxInputCount = 16;
   Node* inputs[kMaxInputCount];
   for (size_t i = 0; i < arraysize(inputs); ++i) {
-    Operator::Opcode opcode = static_cast<Operator::Opcode>(
-        std::numeric_limits<Operator::Opcode>::max() - i);
+    Operator::Opcode opcode = static_cast<Operator::Opcode>(kMaxInputCount + i);
     inputs[i] = graph()->NewNode(
         new (zone()) TestOperator(opcode, Operator::kIdempotent, 0, 1));
   }
@@ -99,8 +98,7 @@ TEST_F(ValueNumberingReducerTest, SubsequentReductionsYieldTheSameNode) {
   static const size_t kMaxInputCount = 16;
   Node* inputs[kMaxInputCount];
   for (size_t i = 0; i < arraysize(inputs); ++i) {
-    Operator::Opcode opcode = static_cast<Operator::Opcode>(
-        std::numeric_limits<Operator::Opcode>::max() - i);
+    Operator::Opcode opcode = static_cast<Operator::Opcode>(2 + i);
     inputs[i] = graph()->NewNode(
         new (zone()) TestOperator(opcode, Operator::kIdempotent, 0, 1));
   }