I'm wondering what the next steps for this proposal are.
I see Max's comment from the 16th <https://github.com/apple/swift-evolution/pull/51#issuecomment-165221854> advising to pull back discussion to the list, but I haven't seen any further discussion in the past 10 days. Does someone feel that there are outstanding problems to address? Even if there is some further discussion we need to have, IMO it would be appropriate to have that discussion in the context of a swift-evolution review.
I personally back the proposal essentially in its entirety. I think it is vague on some points we will want to take up as separate proposals, but I don't think they are worth holding up the ability to test packages at all, which is the present situation.
I am not familiar with what exactly the criteria is for that PR to be accepted into swift-evolution and begin a review, which IIRC is the next stage in the process. I do notice that it is the second oldest of the 12 open PRs in the queue.