{"ast_node_type":"function","tokens":[{"end":95,"kind":"keyword","start":0,"text":"fn"}]}
    fn with_position(#[rust_analyzer::rust_fixture] ra_fixture: &str) -> (Self, FilePosition) {
    #[track_caller]
        let (db, file_id, range_or_offset) = Self::with_range_or_offset(ra_fixture);