Support use of an optional label for the first trailing closure

[Ben_Cohen]

Update from the Core Team

@tkremenek

The Core team recognizes the community’s enthusiasm here and would be interested in a discussion about the broader design space for trailing closures and the requirements and tradeoffs involved in evaluating different options. As noted in the acceptance, we consider SE-0279 to be an incremental addition that does not rule out future directions. The Core team plans on coming back to the community shortly with some guidance, which will be in a form of soliciting participation on that broader discussion, before scheduling a specific review for any proposal in this space.

Hi everyone – thank you for bearing with us. I have posted some thoughts from the core team in this thread and we’d appreciate your contributions there.

Thanks!
Ben