private static List<GrExpression> collectExpressions(final PsiFile file, final int offset) {
    final List<GrExpression> expressions = new ArrayList<>();

    _collect(file, offset, expressions);
    if (expressions.isEmpty()) _collect(file, offset, expressions);
    return expressions;
  }
private static List<GrExpression> collectExpressions(final PsiFile file, final int offset)