Fix buildbots with merge that didn't happen for 4050b01b.

                                 llvm::sys::path::Style Style) {

  llvm::StringRef directory = llvm::sys::path::parent_path(Path, Style);

  llvm::StringRef filename = llvm::sys::path::filename(Path, Style);

  FileEntry FE(insertString(directory), insertString(filename));

  // We must insert the strings first, then call the FileEntry constructor.

  // If we inline the insertString() function call into the constructor, the

  // call order is undefined due to parameter lists not having any ordering

  // requirements.

  const uint32_t Dir = insertString(directory);

  const uint32_t Base = insertString(filename);

  FileEntry FE(Dir, Base);

  std::lock_guard<std::recursive_mutex> Guard(Mutex);

  const auto NextIndex = Files.size();