{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"match"}]}
                match uses_unique_placeholders_ignoring_regions(self.cx(), opaque_ty.args) {
                // FIXME: This may have issues when the args contain aliases...
                    Err(NotUniqueParam::NotParam(param)) if param.is_non_region_infer() => {