r281198 - Add virtual destructor (necessary due to the switch to shared_ptr).

[Richard Smith via cfe-commits]

Author: rsmith
Date: Mon Sep 12 01:51:11 2016
New Revision: 281198

URL: http://llvm.org/viewvc/llvm-project?rev=281198&view=rev
Log:
Add virtual destructor (necessary due to the switch to shared_ptr).

Modified:
    cfe/trunk/utils/TableGen/ClangDiagnosticsEmitter.cpp

Modified: cfe/trunk/utils/TableGen/ClangDiagnosticsEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/TableGen/ClangDiagnosticsEmitter.cpp?rev=281198&r1=281197&r2=281198&view=diff
==============================================================================
--- cfe/trunk/utils/TableGen/ClangDiagnosticsEmitter.cpp (original)
+++ cfe/trunk/utils/TableGen/ClangDiagnosticsEmitter.cpp Mon Sep 12 01:51:11 2016
@@ -911,6 +911,7 @@ namespace {
 struct DiagText {
   struct Piece {
     virtual void print(std::vector<std::string> &RST) = 0;
+    virtual ~Piece() {}
   };
   struct TextPiece : Piece {
     StringRef Role;