{"ast_node_type":"function","tokens":[{"end":75,"kind":"keyword","start":0,"text":"fn"}]}
fn f() { let a = 1; let b = 0.0; let c: (i32, (i32, f64)) = todo$0!(); }"#,
            r#"//- minicore: todo, unimplemented
            r#"fn f() { let a = 1; let b = 0.0; let c: (i32, (i32, f64)) = (a, (a, b)); }"#,