@NotNull
  public static Set<String> getVcsIgnoreFileNames(@NotNull Project project) {
    Set<String> set = new HashSet<>();
    for (IgnoredFileContentProvider provider : IgnoredFileContentProvider.IGNORE_FILE_CONTENT_PROVIDER.getExtensionList(project)) {
      set.add(provider.getFileName());
    }
    return set;
  }
@NotNull
  public static Set<String> getVcsIgnoreFileNames(@NotNull Project project)