firScope.getCallableSignatures(getPossibleCallableNames().filter(nameFilter), builder)
    }

    override fun getCallableSignatures(names: Collection<Name>): Sequence<KtCallableSignature<*>> = withValidityAssertion {
        firScope.getCallableSignatures(names, builder)
    }

    override fun getClassifierSymbols(nameFilter: KtScopeNameFilter): Sequence<KtClassifierSymbol> = withValidityAssertion {