If I file out Collections-SkipLists from Cuis (1.0) and try to file in the result to Squeak (3.10 beta), I get an error:
Nothing more expected ->classDefinition: #SkipList category: #'Collections-SkipLists'
Skip lists is just an example; filing in to Squeak from Cuis doesn't work for anything I tried. This is broken, right?