Slava Pestov 2686ce37bb AST: Hack around edge case due to broken abstract conformance representation ...

A substitution map might store an abstract conformance even if the
replacement type is an archetype that conforms concretely via a
superclass requirement.

This is because when we build the substitution map, if the archetype
is represented by a type parameter, we don't have enough information
to know if it will conform abstractly or concretely.

2022-07-29 11:59:17 -04:00

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