'''isFeature/10'''

 * 'FEATURE'|'PORT'|'PORT GROUP'|'FEATURE GROUP'|'ACCESS'|'PARAMETER'|'SUBPROGRAM'
 * 'NIL'|package_name
 * component_type_identifier
 * (feature) identifier
 * 'NIL'|'IN'|'OUT'|'IN OUT'|'PROVIDES'|'REQUIRES'
 * 'NIL'|'DATA'|'SERVER'|'EVENT'|'EVENT DATA'|'INVERSE OF'|'SUBPROGRAM'|'SUBPROGRAM GROUP'|'BUS'|'VIRTUAL BUS'|FEATURE|PROTOTYPE
 * 'NIL'|component_classifier_reference
 * 'NIL'|array_dimmensions
 * 'NIL'|'REFINED TO'
 * line number (integer)

notes:

 * package_name is mandatory for AADL v2 (warning message 001)
 * first parameter must not be PORT GROUP for AADL v2 (warning message 007)
 * first parameter must not be SUBPROGRAM for AADL v2 (warning messages 008 and 009)
 * sixth parameter must not be SERVER for AADL v2 (warning message 009)