return possibleReceivers.filterIsInstance<KtClassLikeSymbol>()
    }

    /**
     * Returns true if we consider that [this] extension function prefixed with [actualReceiverType] in
     * a KDoc reference should be considered as legal and resolved, and false otherwise.
     *
     * This is **not** an actual type check, it is just an opinionated approximation.
     * The main guideline was K1 KDoc resolve.
     *