Drop support for hashes…
Drop support for hashes…

These can be emulated via two arrays, e.g.

hash = {
  a: x,
  b: y,
  c: z
}

Is equivalent to:

keys = [a, b, c]
values = [x, y, z]

It follows that:

hash[foo] == bar

Is equivalent to:

keys[index] == foo && values[index] == bar

In fact, the latter is more powerful because it
allows duplicate keys to mapped to values, e.g.

keys = [a, a, b]
sentient-lang/sentient-lang,sentient-lang/sentient-lang