tests/ui/parser/deli-ident-issue-2.rs - third_party/rust - Git at Google

 fn main() {
     if 1 < 2 {
         let _a = vec!]; //~ ERROR mismatched closing delimiter
     }
 } //~ ERROR unexpected closing delimiter

 fn main() {}
	fn main() {
	if 1 < 2 {
	let _a = vec!]; //~ ERROR mismatched closing delimiter
	}
	} //~ ERROR unexpected closing delimiter

	fn main() {}