Merge pull request #10048 from adrian-prantl/32520596

Add a virtual destructor to avoid leaking the new private impl's memory.

Author: adrian-prantl

lib/IRGen/IRGenDebugInfo.cpp

@@ -2074,6 +2074,9 @@ IRGenDebugInfo *IRGenDebugInfo::createIRGenDebugInfo(const IRGenOptions &Opts,
   return new IRGenDebugInfoImpl(Opts, CI, IGM, M, SF);
 }
 
+
+IRGenDebugInfo::~IRGenDebugInfo() {}
+
 // Forwarding to the private implementation.
 void IRGenDebugInfo::finalize() {
   static_cast<IRGenDebugInfoImpl *>(this)->finalize();

lib/IRGen/IRGenDebugInfo.h

@@ -49,6 +49,7 @@ class IRGenDebugInfo {
                                               ClangImporter &CI,
                                               IRGenModule &IGM, llvm::Module &M,
                                               SourceFile *SF);
+  virtual ~IRGenDebugInfo();
 
   /// Finalize the llvm::DIBuilder owned by this object.
   void finalize();