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

llvm-svn: 203344
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp
index 5878e59..d5587b3 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp
@@ -84,12 +84,12 @@
   /// Creates an entry in the JIT registry for the buffer @p Object,
   /// which must contain an object file in executable memory with any
   /// debug information for the debugger.
-  void registerObject(const ObjectBuffer &Object);
+  void registerObject(const ObjectBuffer &Object) override;
 
   /// Removes the internal registration of @p Object, and
   /// frees associated resources.
   /// Returns true if @p Object was found in ObjectBufferMap.
-  bool deregisterObject(const ObjectBuffer &Object);
+  bool deregisterObject(const ObjectBuffer &Object) override;
 
 private:
   /// Deregister the debug info for the given object file from the debugger