If I implement support for a language where the association sourca file
<-> module is always 1:1, is the support for IMixinParser needed anyway?
(I think there will be more questions of this kind, because the
documentation is a little scarce and reading the code doesn't clarify
_why_ things are done and when they aren't neeeded. If there is more
documentation than the code and the wiki, please let me know)