an example && to replace (with ICE)

gistfile1.txt

    // Call o.fsync after executing blk
    fn obj_sync(&&o: FSyncable, opt_level: option<Level>,   /* ICE if I change this... */
                blk: fn(&&Res<FSyncable>)) {
        blk(Res({
            val: o, opt_level: opt_level,
            fsync_fn: fn@(&&o: FSyncable, l: Level) -> int {
                return o.fsync(l);
            }
        }));
    }