protected @NotNull OperationStatus ensureFilesWritable(@NotNull Collection<? extends VirtualFile> originalFiles,
                                                         Collection<? extends VirtualFile> files) {
    return createResultStatus(originalFiles, files);
  }
protected @NotNull OperationStatus ensureFilesWritable(@NotNull Collection<? extends VirtualFile> originalFiles,
                                                         Collection<? extends VirtualFile> files)