private static @NotNull Collection<? extends PsiSymbolReference> doGetOwnReferences(@NotNull PsiElement element) {
    CachedValuesManager cachedValuesManager = CachedValuesManager.getManager(element.getProject());
    return cachedValuesManager.getParameterizedCachedValue(element, OWN_REFERENCES_KEY, OWN_REFERENCES_PROVIDER, false, element);
  }
private static @NotNull Collection<? extends PsiSymbolReference> doGetOwnReferences(@NotNull PsiElement element)