[clang-tidy] give dummy path when create ClangTidyContext#134670

HerrCai0907 merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

HerrCai0907:134502-clang-tidy-fix-fileconfigoptionsprovidergetoptionsHerrCai0907/llvm-project:134502-clang-tidy-fix-fileconfigoptionsprovidergetoptionsCopy head branch name to clipboard