Array.from polyfill

Array.from polyfill
This is not good. It has way too much side effect.

Since JS does not allow this to be checked we will have to settle with isCallable, aka typeof equals function

See @domenic's https://github.com/domenic/especially/blob/00a4d4a8daf962ef970a0561564c5256ebdb305a/abstract-operations.js#L23