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

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index 92c75f5161bac14ef95918765f952a4cdff2730a..a0e773ddb2422423ee92a31824dee9cc27632668 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -20,12 +20,12 @@ class MachineOperatorBuilder;
 
 
 // Lowers certain JS-level runtime calls.
-class JSIntrinsicLowering FINAL : public Reducer {
+class JSIntrinsicLowering final : public Reducer {
  public:
   explicit JSIntrinsicLowering(JSGraph* jsgraph);
-  ~JSIntrinsicLowering() FINAL {}
+  ~JSIntrinsicLowering() final {}
 
-  Reduction Reduce(Node* node) FINAL;
+  Reduction Reduce(Node* node) final;
 
  private:
   Reduction ReduceConstructDouble(Node* node);