1 // run-pass
2 
3 #![allow(dead_code, unused_imports)]
4 #![feature(no_core)]
5 #![no_core]
6 // edition:2018
7 
8 extern crate std;
9 extern crate core;
10 use core::{prelude::v1::*, *};
11 
foo()12 fn foo() {
13     for _ in &[()] {}
14 }
15 
bar() -> Option<()>16 fn bar() -> Option<()> {
17     None?
18 }
19 
main()20 fn main() {}
21