Aside from refactorings, minor changes in logic are made:
- to find out if a type of a value parameter is vararg ('ellipsis type'), we
now check if the method is vararg and the parameter is its last parameter
(instead of 'instanceof PsiEllipsisType')
- 'visitedSuperclasses' is now a Set: this better reflects what it's supposed
to represent. Also result check of the 'add()' method on a List was useless
Alexander Udalov
be5ba7fa0d