From ce0a88a5e1b2bfa334331b5066bb65bd4ff75bcb Mon Sep 17 00:00:00 2001
From: Pavel Labath <pavel@labath.sk>
Date: Fri, 12 Apr 2019 13:48:01 +0000
Subject: Fix compiler warning introduced by r358261

Add a virtual destructor to the class with virtual methods.

llvm-svn: 358284
---
 .../Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp b/lldb/source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
index a1f417516b0..3f6a98008ef 100644
--- a/lldb/source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
@@ -160,6 +160,8 @@ private:
 template <typename ResultT = void>
 class FPOProgramASTVisitor {
 protected:
+  virtual ~FPOProgramASTVisitor() = default;
+
   virtual ResultT Visit(FPOProgramNodeBinaryOp &binary,
                         FPOProgramNode *&ref) = 0;
   virtual ResultT Visit(FPOProgramNodeUnaryOp &unary, FPOProgramNode *&ref) = 0;
-- 
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