Add virtual destructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80660 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Analysis/DebugInfo.h b/include/llvm/Analysis/DebugInfo.h
index 7c6b421..b962d13 100644
--- a/include/llvm/Analysis/DebugInfo.h
+++ b/include/llvm/Analysis/DebugInfo.h
@@ -128,6 +128,7 @@
       if (DbgNode && !isScope())
         DbgNode = 0;
     }
+    virtual ~DIScope() {}
 
     virtual const std::string &getFilename(std::string &F) const {
       return F;