{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"fcx.tcx.value_path_str_with_args(def.did(),"}]}
                                fcx.tcx.value_path_str_with_args(def.did(), args)
                            let to_ty = if let ty::Adt(def, args) = self.cast_ty.kind() {
                            } else {