Updated to Clang 3.5a.

Change-Id: I8127eb568f674c2e72635b639a3295381fe8af82
diff --git a/lib/Rewrite/Frontend/HTMLPrint.cpp b/lib/Rewrite/Frontend/HTMLPrint.cpp
index 79e4447..64da05f 100644
--- a/lib/Rewrite/Frontend/HTMLPrint.cpp
+++ b/lib/Rewrite/Frontend/HTMLPrint.cpp
@@ -42,8 +42,8 @@
       : Out(OS), PP(pp), SyntaxHighlight(_SyntaxHighlight),
         HighlightMacros(_HighlightMacros) {}
 
-    void Initialize(ASTContext &context);
-    void HandleTranslationUnit(ASTContext &Ctx);
+    void Initialize(ASTContext &context) override;
+    void HandleTranslationUnit(ASTContext &Ctx) override;
   };
 }