[llvm-mt] Use XmlDeleter to free xmlFreeDoc#128472

vitalybuka merged 4 commits intomainllvm/llvm-project:mainfrom

users/vitalybuka/spr/llvm-mt-use-xmldeleter-to-free-xmlfreedocllvm/llvm-project:users/vitalybuka/spr/llvm-mt-use-xmldeleter-to-free-xmlfreedocCopy head branch name to clipboard