Comment #4 on issue 557 by vhane...(a)gmail.com: FAMIXComment wrongly
initialized
http://code.google.com/p/moose-technology/issues/detail?id=557
Sorry if we (i.e., I and Alexandre) were a bit hasty on this.
We were concerned with a proper initialization of famix classes. Would it be
better to make printOn: not fail in case of a nil signature?
Thanks for double checking what we have done.