override val isExpect: Boolean
        get() = withValidityAssertion { descriptor?.isExpect ?: psi.hasExpectModifier() }

    override val initializer: KtInitializerValue?
        get() = withValidityAssertion { createKtInitializerValue(psi.initializer, descriptor, analysisContext) }

    override val isVal: Boolean
        get() = withValidityAssertion { !psi.isVar }