//ww:run-exit 7
// Migrated from 700_e2e row 67.
package main;
fn lookup(p: *i32, b: bool) (*i32 | void) = {
  if (b) { return p; };
  return;
};
fn main() i32 = {
  let x: i32 = 42;
  let r1: (*i32 | void) = lookup(&x, true);
  let r2: (*i32 | void) = lookup(&x, false);
  let acc: i32 = 0;
  if (r1 is *i32) { acc += 1; };
  if (r2 is void) { acc += 2; };
  let p: *i32 = r1 as *i32;
  if (*p == 42)   { acc += 4; };
  return acc;
};