[chrismorgan]

This puzzles me. `arg => expression`, `(args, …) => expression`, `arg => { block }`, `(args, …) => { block }`… they’re not hard or long to type, and there are the different forms of argument list and body, so that I imagine you’d want more than one snippet (at least for expression versus block, considering some style guides say “always parenthesise argument lists”), and the entire thing seems not at all worth it.