PADL: Remove code duplication between PackageDefault and PackageGhost #447
Description
While using the GLASS tool on the PADL project I encountered this issue:
Both classes share the following methods with the same implementation:
void addConstituent(IGhost aGhost),void addConstituent(IPackageGhost aPackageGhost)
To reduce code duplication, an idea could be to make one of these class a subclass of the other (this should not really affect the type hierarchy since the interfaces don't change).
Another idea would be to simply use a pull up refactoring and add these methods to the Package class, or maybe it is possible to remove these methods completely.
