[C++11] Add 'override' keyword to virtual methods that override their base class.

llvm-svn: 203439
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
index d9a1453..25efd67 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp
@@ -34,14 +34,13 @@
 
     virtual ~ARMELFObjectWriter();
 
-    virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
-                                  bool IsPCRel, bool IsRelocWithSymbol,
-                                  int64_t Addend) const;
-    virtual const MCSymbol *ExplicitRelSym(const MCAssembler &Asm,
-                                   const MCValue &Target,
-                                   const MCFragment &F,
+    unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
+                          bool IsPCRel, bool IsRelocWithSymbol,
+                          int64_t Addend) const override;
+    const MCSymbol *ExplicitRelSym(const MCAssembler &Asm,
+                                   const MCValue &Target, const MCFragment &F,
                                    const MCFixup &Fixup,
-                                   bool IsPCRel) const;
+                                   bool IsPCRel) const override;
   };
 }