@Override public void visitReferenceElement(@NotNull PsiJavaCodeReferenceElement reference) {
    final PsiElement psiElement = reference.resolve();
    if (psiElement instanceof PsiMember) {
      checkAddMember((PsiMember)psiElement);
    }
    super.visitReferenceElement(reference);
  }
@Override public void visitReferenceElement(@NotNull PsiJavaCodeReferenceElement reference)