private GrParameter getSyntheticArgsParameter() {
    GrParameter parameter = mySyntheticArgsParameter;
    if (parameter == null) {
      final PsiType psiType = JavaPsiFacade.getElementFactory(getProject()).createTypeFromText("java.lang.String[]", this);
      parameter = new GrLightParameter(SYNTHETIC_PARAMETER_NAME, psiType, this);
      mySyntheticArgsParameter = parameter;
    }
    return parameter;
  }
private GrParameter getSyntheticArgsParameter()