Replace OVERRIDE->override and FINAL->final since we now require C++11.

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

Index: test/unittests/compiler/machine-operator-reducer-unittest.cc
diff --git a/test/unittests/compiler/machine-operator-reducer-unittest.cc b/test/unittests/compiler/machine-operator-reducer-unittest.cc
index 11c679cb296f4a95f62726c738f2f0d35880c584..9836be4fb22bb208e5692d1f9ab273c3c06b2c59 100644
--- a/test/unittests/compiler/machine-operator-reducer-unittest.cc
+++ b/test/unittests/compiler/machine-operator-reducer-unittest.cc
@@ -67,7 +67,7 @@ class MachineOperatorReducerTestWithParam
  public:
   explicit MachineOperatorReducerTestWithParam(int num_parameters = 2)
       : MachineOperatorReducerTest(num_parameters) {}
-  ~MachineOperatorReducerTestWithParam() OVERRIDE {}
+  ~MachineOperatorReducerTestWithParam() override {}
 };