{"ast_node_type":"variable","tokens":[{"end":44,"kind":"keyword","start":0,"text":"let"}]}
        let tcx = self.def_id_visitor.tcx();
    fn visit_projection_term(&mut self, projection: ty::AliasTerm<'tcx>) -> V::Result {
        let (trait_ref, assoc_args) = projection.trait_ref_and_own_args(tcx);