Implement clojure.core/sort

[bpiel]

Issue: #178

Examples:

clojure.core=> (sort [3 2 1])
(1 2 3)
clojure.core=> (meta (sort ^:a [4 3 2]))
{:a true}
clojure.core=> (sort '(4 3 2))
(2 3 4)
clojure.core=> (sort [[4] [3] [2]])
([2] [3] [4])
clojure.core=> (type (sort []))
"native_vector_sequence"

[jeaye]

Looks great. Just some small comments.

[CLAassistant]

All committers have signed the CLA.

[jeaye]

Looks great. Have you tested this in a jank repl session?

You might be interested in adding tests for sort over here: https://github.com/jank-lang/clojure.core-test Not required, since we have others also working on tests there.

[bpiel]

@jeaye

Have you tested this in a jank repl session?

Yes. I pasted examples in the original PR description above of some of the repl testing I did.
I can add tests to that repo too.

[jeaye]

Nice job, Bill!