Add LLVM_OVERRIDE to methods that override their base classes.

llvm-svn: 164471
diff --git a/llvm/lib/VMCore/Instructions.cpp b/llvm/lib/VMCore/Instructions.cpp
index 9af98e8..d5b756d 100644
--- a/llvm/lib/VMCore/Instructions.cpp
+++ b/llvm/lib/VMCore/Instructions.cpp
@@ -2836,7 +2836,7 @@
 //                               CmpInst Classes
 //===----------------------------------------------------------------------===//
 
-void CmpInst::Anchor() const {}
+void CmpInst::anchor() {}
 
 CmpInst::CmpInst(Type *ty, OtherOps op, unsigned short predicate,
                  Value *LHS, Value *RHS, const Twine &Name,