Slava Pestov 3720badc2a Sema: Fix matchTypes() for existential to superclass conversions ...

Now that mayHaveSuperclass() is back to its old meaning, we can't
piggy-back off of it anymore and must add a new bit of logic
for class-constrained existential to superclass conversions.

Also re-organize the code a bit.

2017-04-12 00:07:28 -07:00

171 KiB

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