{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
                        // We handle the other parts of `Ty` in the match arm below
                    (&GenericParamDefKind::Type { has_default, .. }, GenericArg::Type(ty)) => {
                        handle_ty_args(has_default, ty.as_unambig_ty())