SIL: Correctly substitute type parameters in opened existential types #19783
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This wasn't possible when the SIL cloner was first written, but subclass existentials can involve generic classes, so you can have an opened archetype type with a superclass constraint involving a type constraint.
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@swift-ci Please smoke test |
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This fixes SR-8901 |
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This wasn't possible when the SIL cloner was first written, but subclass
existentials can involve generic classes, so you can have an opened
archetype type with a superclass constraint involving a type constraint.