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

src/compiler/js-generic-lowering.h

Index: src/compiler/js-generic-lowering.h
diff --git a/src/compiler/js-generic-lowering.h b/src/compiler/js-generic-lowering.h
index 5ca09ef5ab1946be366a1cfec0fe6f2be99f4ef3..89467dbdd2cdeef8629f8911789dbbdcee2f573c 100644
--- a/src/compiler/js-generic-lowering.h
+++ b/src/compiler/js-generic-lowering.h
@@ -22,12 +22,12 @@ class Linkage;
 
 
 // Lowers JS-level operators to runtime and IC calls in the "generic" case.
-class JSGenericLowering FINAL : public Reducer {
+class JSGenericLowering final : public Reducer {
  public:
   JSGenericLowering(bool is_typing_enabled, JSGraph* jsgraph);
-  ~JSGenericLowering() FINAL;
+  ~JSGenericLowering() final;
 
-  Reduction Reduce(Node* node) FINAL;
+  Reduction Reduce(Node* node) final;
 
  protected:
 #define DECLARE_LOWER(x) void Lower##x(Node* node);