| error[E0121]: the placeholder `_` is not allowed within types on item signatures for type aliases | |
| --> $DIR/ice-hir-wf-issue-135341.rs:2:10 | |
| | | |
| LL | type B = _; | |
| | ^ not allowed in type signatures | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0121`. |