@Override
  public boolean isScript() {
    final StubElement stub = getStub();
    if (stub instanceof GrFileStub) {
      return ((GrFileStub)stub).isScript();
    }

    Boolean isScript = myScript;
    if (isScript == null) {
      isScript = checkIsScript();
      myScript = isScript;
    }
    return isScript;
  }
@Override
  public boolean isScript()