[turbofan] Cleanup use of virtual, OVERRIDE, FINAL.

test/unittests/compiler/node-matchers-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/machine-operator.h"
 #include "src/compiler/node.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/opcodes.h"
 
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/test-utils.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 class NodeMatcherTest : public GraphTest {
  public:
   NodeMatcherTest() : machine_(zone()) {}
-  virtual ~NodeMatcherTest() {}
+  ~NodeMatcherTest() OVERRIDE {}
 
   MachineOperatorBuilder* machine() { return &machine_; }
 
  private:
   MachineOperatorBuilder machine_;
 };
 
 namespace {
 
 template <class Matcher>
@@ skipping 691 matching lines @@
   temp = graph()->NewNode(a_op, b0, d15);
   BaseWithIndexAndDisplacement64Matcher match50(
       graph()->NewNode(a_op, m3, temp));
   CheckBaseWithIndexAndDisplacement(&match50, m3, 0, b0, d15);
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8