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

llvm-svn: 203439
diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
index 9c7988f..0a5e87a 100644
--- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
+++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
@@ -98,12 +98,10 @@
   }
 
   /// 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;
 };
 
 /// ThumbDisassembler - Thumb disassembler for all Thumb platforms.
@@ -119,12 +117,10 @@
   }
 
   /// 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:
   mutable ITStatus ITBlock;