ref: fdbbf1909462cef844b6b9cbbc5d90a9ec2ebed2
dir: /lib/std/test/sjlj.myr/
use std
const main = {
var jb
if std.setjmp(&jb)
std.put("nonlocal return\n")
std.exit(0)
;;
std.put("doing jmp\n")
dolongjmp(&jb)
std.fatal("unreachable\n")
}
const dolongjmp = {jb
std.longjmp(jb)
}