[turbofan] Minor cleanup to reduce code duplication.

test/unittests/compiler/simplified-operator-reducer-unittest.cc

Index: test/unittests/compiler/simplified-operator-reducer-unittest.cc
diff --git a/test/unittests/compiler/simplified-operator-reducer-unittest.cc b/test/unittests/compiler/simplified-operator-reducer-unittest.cc
index 8a42f7d3ebc620f626f54abd639b8808a60f8a5b..066cbe9337e5d216e185944c487ecbbdd585c5cb 100644
--- a/test/unittests/compiler/simplified-operator-reducer-unittest.cc
+++ b/test/unittests/compiler/simplified-operator-reducer-unittest.cc
@@ -18,7 +18,7 @@ class SimplifiedOperatorReducerTest : public GraphTest {
  public:
   explicit SimplifiedOperatorReducerTest(int num_parameters = 1)
       : GraphTest(num_parameters), simplified_(zone()) {}
-  virtual ~SimplifiedOperatorReducerTest() {}
+  ~SimplifiedOperatorReducerTest() OVERRIDE {}
 
  protected:
   Reduction Reduce(Node* node) {
@@ -43,7 +43,7 @@ class SimplifiedOperatorReducerTestWithParam
  public:
   explicit SimplifiedOperatorReducerTestWithParam(int num_parameters = 1)
       : SimplifiedOperatorReducerTest(num_parameters) {}
-  virtual ~SimplifiedOperatorReducerTestWithParam() {}
+  ~SimplifiedOperatorReducerTestWithParam() OVERRIDE {}
 };