return map {
                val overridden = (it as CallableMemberDescriptor).overriddenDescriptors.firstOrNull()
                overridden?.newCopyBuilder()
                    ?.setModality(Modality.OPEN)
                    ?.setKind(CallableMemberDescriptor.Kind.DELEGATION)
                    ?.setDispatchReceiverParameter(it.dispatchReceiverParameter)
                    ?.setPreserveSourceElement()