1pub fn f() void {
 2    var bar: bool = true;
 3    _ = &bar;
 4    const S = struct {
 5        fn baz() bool {
 6            return bar;
 7        }
 8    };
 9    _ = S;
10}
11
12// error
13//
14// :6:20: error: mutable 'bar' not accessible from here
15// :2:9: note: declared mutable here
16// :4:15: note: crosses namespace boundary here