{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"if"}]}
                if self.mir_def.to_def_id() == typeck_root_def_id
                let identity_args = GenericArgs::identity_for_item(tcx, typeck_root_def_id);
                    // Do not ICE when checking default_field_values consts with lifetimes (#135649)