| error: expected one of `>`, const, identifier, lifetime, or type, found `,` | |
| --> $DIR/issue-20616-5.rs:22:34 | |
| | | |
| LL | type Type_5<'a> = Type_1_<'a, (),,>; | |
| | ^ expected one of `>`, const, identifier, lifetime, or type | |
| error: aborting due to previous error | |