private static GrReferenceExpression convertRefInternal(GroovyPsiElementFactory factory, GrReferenceExpression ref) {
    ref.addAfter(factory.createDotToken("."), ref.getQualifier());
    return ref;
  }
private static GrReferenceExpression convertRefInternal(GroovyPsiElementFactory factory, GrReferenceExpression ref)