} else {
                analysisSession.builtinTypes.UNIT
            }
        }
        is FirExpression -> fir.resolvedType.asKtType()
        is FirNamedReference -> fir.getCorrespondingTypeIfPossible()?.asKtType()
        is FirStatement -> with(analysisSession) { builtinTypes.UNIT }
        is FirTypeRef, is FirImport, is FirPackageDirective, is FirLabel, is FirTypeParameterRef -> null