private Set<PsiMethod> getOverriddenMethods() {
    LinkedHashSet<PsiMethod> result = new LinkedHashSet<>();

    PsiMethod[] methods = myClass.getMethods();
    for (PsiMethod method : methods) {
      if (findSuperMethodInBaseClass(method) != null) result.add(method);
    }
    return result;
  }
private Set<PsiMethod> getOverriddenMethods()