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

test/unittests/compiler/common-operator-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 <limits>
 
 #include "src/compiler/operator-properties-inl.h"
 #include "test/unittests/test-utils.h"
@@ skipping 99 matching lines @@
 
 // -----------------------------------------------------------------------------
 // Other operators.
 
 
 namespace {
 
 class CommonOperatorTest : public TestWithZone {
  public:
   CommonOperatorTest() : common_(zone()) {}
-  virtual ~CommonOperatorTest() {}
+  ~CommonOperatorTest() OVERRIDE {}
 
   CommonOperatorBuilder* common() { return &common_; }
 
  private:
   CommonOperatorBuilder common_;
 };
 
 
 const int kArguments[] = {1, 5, 6, 42, 100, 10000, 65000};
 
@@ skipping 152 matching lines @@
     EXPECT_EQ(arguments + 1, OperatorProperties::GetTotalInputCount(op));
     EXPECT_EQ(0, op->ControlOutputCount());
     EXPECT_EQ(0, op->EffectOutputCount());
     EXPECT_EQ(1, op->ValueOutputCount());
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8