SE-0279: Multiple Trailing Closures

[griotspeak (TJ Usiyan)]

@xwu

There are no fewer round and curly braces required.

@griotspeak

switching between round and curly braces

@xwu

If commas are a problem here, why not everywhere else in parameter lists? Isn’t this an argument for approving SE-0257 instead?

SE-0257: Eliding commas from multiline expression lists

+1 Yes, the ability to choose when commas will aid clarity and when they won't is very much welcome's. Yes. Swift is very close to being great from a eDSL standpoint. This helps it get closer. The fact that we would be able to add commas where desired puts it above some implementations but, overall, it is on par. I followed the pitch and read the proposal.