[ConstraintSystem] Fix a property wrapper constraint generation crash. #36611
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@swift-ci please test source compatibility |
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xedin
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Mar 26, 2021
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@swift-ci please smoke test macOS platform |
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The property wrapper initializer type passed into
generateWrappedPropertyTypeConstraintscan be a type variable if the wrapper type has a failable initializer. To avoid attempting to lookup the wrapped value type on a type variable, always open the outermost wrapper attribute type and add an equality constraint to the initializer type.Resolves: rdar://70238041