tests/ui/macros/issue-109237.rs - toolchain/rustc - Git at Google

 macro_rules! statement {
     () => {;}; //~ ERROR expected expression
 }

 fn main() {
     let _ = statement!();
 }
	macro_rules! statement {
	() => {;}; //~ ERROR expected expression
	}

	fn main() {
	let _ = statement!();
	}