src/test/ui/parser/extern-no-fn.rs - rust - Git at Google

 extern "C" {
     f(); //~ ERROR expected one of `!` or `::`, found `(`
 }

 fn main() {
 }
	extern "C" {
	f(); //~ ERROR expected one of `!` or `::`, found `(`
	}

	fn main() {
	}