Shouldn't
FAMIXBehaviouralEntity>>computeNumberOfLinesOfCode
self hasSourceAnchor
ifTrue: [ ^ self sourceAnchor lineCount ].
^ (self sourceText lineCount = '')
ifTrue: [ self notExistentMetricValue ]
ifFalse: [ self sourceText lineCount ]
be
computeNumberOfLinesOfCode
self hasSourceAnchor
ifTrue: [ ^ self sourceAnchor lineCount ].
^ (self sourceText = '')
ifTrue: [ self notExistentMetricValue ]
ifFalse: [ self sourceText lineCount ]