ref: e1bc2dfb1c4a93d4d6def1a2a24a08165040a4b8
dir: /test/voidcall.myr/
use std
/* checks that calling void functions works. should compile, and not die
when running. the exit value is 12, but it's really a dummy. */
const f = {
var a
a = a + 1
}
const main = {
f()
-> 12
}