first, second, empty? intrinsics for string and array

Description

We could emit coll[0] for (first coll) where coll is either string or array. Similar for cljs.core/second and cljs.core/empty?

Environment

None

Status

Assignee

Mike Fikes

Reporter

Roman Liutikov

Labels

None

Approval

None

Patch

Code and Test

Priority

Major
Configure