{"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":".is_suitable_region(self.mir_def_id(),"}]}
            .is_suitable_region(self.mir_def_id(), sup)
            .tcx
            .and_then(|_| find_anon_type(self.infcx.tcx, self.mir_def_id(), sup))