'''isRecordFieldOpt/9'''

 * 'NIL'|package_name
 * 'NIL'|component_type_identifier
 * 'NIL'|component_implementation_identifier
 * 'NIL'|property_owner_identifier [capitalized]
 * property_identifier [capitalized]
 * (assignment list) element_number (integer)
 * (record field) identifier [capitalized]
 * (record field) value [capitalized]
 * line number (integer)

notes:

 * similar to isRecordField/9 with capitalized owner id, property id, field id and field value