[turbofan] Initial attempt to cleanup Node and related classes.

test/unittests/compiler/graph-unittest.cc

Index: test/unittests/compiler/graph-unittest.cc
diff --git a/test/unittests/compiler/graph-unittest.cc b/test/unittests/compiler/graph-unittest.cc
index 95432587a825f947f42616c8067c86bff7a03f17..960ff92293946a71100908a37faebab7e47fc08c 100644
--- a/test/unittests/compiler/graph-unittest.cc
+++ b/test/unittests/compiler/graph-unittest.cc
@@ -105,6 +105,26 @@ Node* TypedGraphTest::Parameter(Type* type, int32_t index) {
   return node;
 }
 
+
+namespace {
+
+const Operator kDummyOperator(0, Operator::kNoProperties, "Dummy", 0, 0, 0, 1,
+                              0, 0);
+
+}  // namespace
+
+
+TEST_F(GraphTest, NewNode) {
+  Node* n0 = graph()->NewNode(&kDummyOperator);
+  Node* n1 = graph()->NewNode(&kDummyOperator);
+  EXPECT_NE(n0, n1);
+  EXPECT_LT(0, n0->id());
+  EXPECT_LT(0, n1->id());
+  EXPECT_NE(n0->id(), n1->id());
+  EXPECT_EQ(&kDummyOperator, n0->op());
+  EXPECT_EQ(&kDummyOperator, n1->op());
+}
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8