Given the following code:
A source.request.indexsource response does not include a source.lang.swift.ref.function.constructor reference for ClassA<String>() to the declaration init(someVar:). The constructor has the USR s:4test6ClassACACyxGSi7someVar_tcfc and it is not referenced anywhere in the index.
This issue appears to only affect classes with generic types. If I remove the generic type from ClassA, the ClassB constructor declaration will contain a reference to init(someVar:).
Full index response is here: https://gist.github.com/ileitch/2b6b08ab247d712da752c5c24b5fca85