{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"#[instrument(level"}]}
    #[instrument(level = "debug", skip(self, infcx, propagated_outlives_requirements))]
    /// `'1` and `'2`, then we would create `T: '1` and `T: '2`.
    fn try_promote_type_test(