'''isWarning/4'''

 * ref number
 * message 
 * entity
 * line number (integer)

generated messages:

 * isWarning('001','AADL declaration outside a package',' ',Line)
 * isWarning('002','missing keyword: public or private',Package,Line)
 * isWarning('003','use of AADL v1 port group classifier declaration',Type,Line)
 * isWarning('004','missing category in alias declaration',Package,Line)
 * isWarning('005','use of AADL v1 feature refinement in component implementation',Implementation,Line)
 * isWarning('006','missing identifier for call sequence',Implementation,Line)
 * isWarning('007','use of AADL v1 port group feature',Type,Line)
 * isWarning('008','use of AADL v1 data subprogram feature',Type,Line)
 * isWarning('009','use of AADL v1 server subprogram feature',Type,Line)
 * isWarning('010','use of AADL v1 delayed connection symbol',Implementation,Line)
 * isWarning('011','use of AADL v1 style for port connection',Implementation,Line)
 * isWarning('012','use of AADL v1 style in property expression',Property,Line)
 * isWarning('013','missing direction in event port prototype binding',Prototype,Line)
 * isWarning('014','missing direction in data port prototype binding',Prototype,Line)
 * isWarning('015','missing direction in event data port prototype binding',Prototype,Line)
 * isWarning('016','missing direction in bus access prototype binding',Prototype,Line)
 * isWarning('017','missing direction in data access prototype binding',Prototype,Line)
 * isWarning('018','missing direction in subprogram access prototype binding',Prototype,Line)
 * isWarning('019','missing direction in subprogram group access prototype binding',Prototype,Line)
 * isWarning('020','use of AADL v2.0 feature connection declaration',Implementation,Line)
 * isWarning('021','missing connection identifier',Implementation,Line)
 * isWarning('022','use of AADL v2.0 style in record property expression',Type,Line)
 * isWarning('023','use of AADL v2.0 style in boolean property expression',Type,Line)
 * isWarning('024','use of AADL v2.0 style in modal property expression',Type,Line)
 * isWarning('026','use of deprecated option for in modes (ALL)',Type,Line)
 * isWarning('030','non-standard use of a behavior annex subclause in a package',Type,Line)