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

llvm-svn: 203418
diff --git a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
index b2959c0..4e6e297 100644
--- a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
+++ b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
@@ -111,12 +111,10 @@
 public:
 
   /// getInstruction - See MCDisassembler.
-  DecodeStatus getInstruction(MCInst &instr,
-                              uint64_t &size,
-                              const MemoryObject &region,
-                              uint64_t address,
+  DecodeStatus getInstruction(MCInst &instr, uint64_t &size,
+                              const MemoryObject &region, uint64_t address,
                               raw_ostream &vStream,
-                              raw_ostream &cStream) const;
+                              raw_ostream &cStream) const override;
 
 private:
   DisassemblerMode              fMode;