1export fn entry() void {
 2    var a: u32 = 0;
 3    while (true) switch (a) {
 4        0 => 2,
 5        1 => a = 0,
 6        else => break,
 7    };
 8}
 9
10// error
11//
12// :3:18: error: incompatible types: 'comptime_int' and 'void'
13// :4:14: note: type 'comptime_int' here
14// :5:16: note: type 'void' here