var explicitReceiverPsi = when (psi) {
                is KtQualifiedExpression -> {
                    psi.selectorExpression
                        ?: errorWithAttachment("missing selectorExpression in PSI ${psi::class} for FirImplicitInvokeCall") {
                            withPsiEntry("psi", psi, analysisSession::getModule)
                        }
                }