{"ast_node_type":"function","tokens":[{"end":84,"kind":"keyword","start":0,"text":"fn"}]}
    fn get_lint_level(&self, lint: &'static Lint, sess: &Session) -> LevelAndSource;
    fn insert(&mut self, id: LintId, lvl: LevelAndSource);
    fn push_expectation(&mut self, id: LintExpectationId, expectation: LintExpectation);