{"ast_node_type":"function","tokens":[{"end":39,"kind":"keyword","start":0,"text":"fn"}]}
    fn test_rename_for_param_inside() {
    #[test]
        check("j", r#"fn foo(i : u32) -> u32 { i$0 }"#, r#"fn foo(j : u32) -> u32 { j }"#);