private static @NotNull Set<String> getContainingClassNames(@NotNull PsiElement position) {
    Set<String> result = new LinkedHashSet<>();
    boolean add = false;
    while (position != null) {
      if (position instanceof PsiAnonymousClass) {
        add = true;
      }
      else if (add && position instanceof PsiClass) {
        ContainerUtil.addIfNotNull(result, ((PsiClass)position).getName());
      }
      position = position.getParent();
    }
    return result;
  }
private static @NotNull Set<String> getContainingClassNames(@NotNull PsiElement position)