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()12fn foo() { 13 for _ in &[()] {} 14 } 15 bar() -> Option<()>16fn bar() -> Option<()> { 17 None? 18 } 19 main()20fn main() {} 21