public static void showStandaloneDiff(@NotNull Project project, @NotNull ChangesBrowserBase changesBrowser) {
    showStandaloneDiff(project, changesBrowser, VcsTreeModelData.getListSelectionOrAll(changesBrowser.myViewer),
                       changesBrowser::getDiffRequestProducer);
  }
public static void showStandaloneDiff(@NotNull Project project, @NotNull ChangesBrowserBase changesBrowser)