bool CanOptimizeWriteListSequence(TypeDesc listElementTypeDesc) {
// check to see if we can write values of the attribute sequentially
// currently we have only one data type (XmlQualifiedName) that we can not write "inline",
// because we need to output xmlns:qx="..." for each of the qnames
return (listElementTypeDesc != null && listElementTypeDesc != QnameTypeDesc);
}