[Review] SE-0084: Allow trailing commas in parameter lists and tuples

* What is your evaluation of the proposal?


I prefer "newlines as commas" to the solution being suggested, but see

* Is the problem being addressed significant enough to warrant a change

to Swift?

Probably, not. I haven't ever had a case where I lost something without
this feature.

* Does this proposal fit well with the feel and direction of Swift?

No. A recent proposal standardized function call grammar. I wouldn't want
to grow it or add optional special cases.

* If you have used other languages or libraries with a similar feature,

how do you feel that this proposal compares to those?

I've seen people use trailing commas for arrays, but never use it myself
even with arrays.

* How much effort did you put into your review? A glance, a quick

reading, or an in-depth study?

Just following the thread.

- Anton