Slava Pestov a8452b4076 AST: Fix crash in ProtocolConformance::subst() when specializing with dynamic Self ...

Looking up the conformance @dynamic_self C<T> : P simply returns
the normal conformance C<T> : P.

If we later apply a substitution map to the conformance to
specialize T, we would call isSpecialized() on the substituted
type, which would return false. We would then hit an assertion
because the type type @dynamic_self C<Int> is not equal to the
(erroneously unsubstituted) conformance type C<T>.

Tweak the logic slightly to avoid this.

2017-04-23 01:49:00 -07:00

1.2 KiB

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