private PsiClass @NotNull [] calcInnerClasses() {
    List<PsiClass> own = myClass.getOwnInnerClasses();
    List<PsiClass> ext = internMembers(PsiAugmentProvider.collectAugments(myClass, PsiClass.class, null));
    return ArrayUtil.mergeCollections(own, ext, PsiClass.ARRAY_FACTORY);
  }
private PsiClass @NotNull [] calcInnerClasses()