private static boolean isUnlabeledBreakStatement(
    @Nullable PsiStatement statement) {
    if (!(statement instanceof PsiBreakStatement breakStatement)) {
      return false;
    }
    final PsiIdentifier identifier =
      breakStatement.getLabelIdentifier();
    return identifier == null;
  }
private static boolean isUnlabeledBreakStatement(
    @Nullable PsiStatement statement)