AST: Centralize AvailabilityDomain lookup #79626
Merged
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Implement lookup of availability domains for identifiers on
AvailabilityDomainOrIdentifier
. Add a bit to that type which represents whether or not lookup has already been attempted. This allows bothAvailableAttr
andAvailabilitySpec
to share a common implementation of domain lookup.Also, fix a bug in the diagnostics for missing wildcards in
@available
attributes.