[turbofan] Proper dead code elimination as regular reducer.

test/unittests/compiler/graph-reducer-unittest.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
 #include "src/compiler/operator.h"
 #include "test/unittests/compiler/graph-reducer-unittest.h"
 #include "test/unittests/test-utils.h"
@@ skipping 257 matching lines @@
 
 
 namespace {
 
 struct ReplaceWithValueReducer final : public AdvancedReducer {
   explicit ReplaceWithValueReducer(Editor* editor) : AdvancedReducer(editor) {}
   Reduction Reduce(Node* node) final { return NoChange(); }
   using AdvancedReducer::ReplaceWithValue;
 };
 
-const Operator kMockOperator(IrOpcode::kDeadControl, Operator::kNoProperties,
+const Operator kMockOperator(IrOpcode::kDead, Operator::kNoProperties,
                              "MockOperator", 0, 0, 0, 1, 0, 0);
-const Operator kMockOpEffect(IrOpcode::kDeadControl, Operator::kNoProperties,
+const Operator kMockOpEffect(IrOpcode::kDead, Operator::kNoProperties,
                              "MockOpEffect", 0, 1, 0, 1, 1, 0);
-const Operator kMockOpControl(IrOpcode::kDeadControl, Operator::kNoProperties,
+const Operator kMockOpControl(IrOpcode::kDead, Operator::kNoProperties,
                               "MockOpControl", 0, 0, 1, 1, 0, 1);
 
 const IfExceptionHint kNoHint = IfExceptionHint::kLocallyCaught;
 
 }  // namespace
 
 
 TEST_F(AdvancedReducerTest, ReplaceWithValue_ValueUse) {
   CommonOperatorBuilder common(zone());
   Node* node = graph()->NewNode(&kMockOperator);
@@ skipping 557 matching lines @@
       EXPECT_EQ(&kOpC0, n1->op());
       EXPECT_EQ(&kOpC1, end->op());
       EXPECT_EQ(n1, end->InputAt(0));
     }
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8