1export fn f1() void {
 2    const x: usize = for ("hello") |_| {};
 3    _ = x;
 4}
 5export fn f2() void {
 6    const x: usize = for ("hello") |_| {
 7        break;
 8    };
 9    _ = x;
10}
11export fn f3() void {
12    var t: bool = true;
13    _ = &t;
14    const x: usize = while (t) {
15        break;
16    };
17    _ = x;
18}
19export fn f4() void {
20    const x: usize = blk: {
21        break :blk;
22    };
23    _ = x;
24}
25
26// error
27//
28// :2:22: error: expected type 'usize', found 'void'
29// :7:9: error: expected type 'usize', found 'void'
30// :15:9: error: expected type 'usize', found 'void'
31// :21:9: error: expected type 'usize', found 'void'