@Override
  public void insertFilesIntoNode(@NotNull Collection<? extends VirtualFile> files, @NotNull ChangesBrowserNode<?> subtreeRoot) {
    List<VirtualFile> sortedFiles = sorted(files, FILE_COMPARATOR);
    for (VirtualFile file : sortedFiles) {
      insertChangeNode(file, subtreeRoot, ChangesBrowserNode.createFile(myProject, file));
    }
  }
@Override
  public void insertFilesIntoNode(@NotNull Collection<? extends VirtualFile> files, @NotNull ChangesBrowserNode<?> subtreeRoot)