swift

203b089a - [Distributed] Tighten recordGenericSubstitution ad-hoc requirement check

[Distributed] Tighten recordGenericSubstitution ad-hoc requirement check There was an old TODO to tighten signature checking in isDistributedTargetInvocationEncoderRecordGenericSubstitution so I finally did: - the enclosing type must conform to 'DistributedTargetInvocationEncoder' - the single parameter must be the metatype of the single generic parameter ('T.Type'), rather than accepting any single parameter