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

llvm-svn: 202953
diff --git a/llvm/lib/Transforms/Utils/LowerSwitch.cpp b/llvm/lib/Transforms/Utils/LowerSwitch.cpp
index 03d4560..6fb7410 100644
--- a/llvm/lib/Transforms/Utils/LowerSwitch.cpp
+++ b/llvm/lib/Transforms/Utils/LowerSwitch.cpp
@@ -37,9 +37,9 @@
       initializeLowerSwitchPass(*PassRegistry::getPassRegistry());
     } 
 
-    virtual bool runOnFunction(Function &F);
-    
-    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    bool runOnFunction(Function &F) override;
+
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
       // This is a cluster of orthogonal Transforms
       AU.addPreserved<UnifyFunctionExitNodes>();
       AU.addPreserved("mem2reg");