[clang-tools-extra] Use llvm::unique (NFC)#136514

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

kazutakahirata:cleanup_001_range_unique_clang_toolskazutakahirata/llvm-project:cleanup_001_range_unique_clang_toolsCopy head branch name to clipboard