override val psi: KtFile
        get() = withValidityAssertion { file }

    override val annotationsObject: Annotations
        get() = withValidityAssertion { analysisContext.resolveSession.getFileAnnotations(file) }

    override val origin: KtSymbolOrigin
        get() = withValidityAssertion { if (file.isCompiled) KtSymbolOrigin.LIBRARY else KtSymbolOrigin.SOURCE }