error[E0404]: expected trait, found enum `Tag`
  --> $DIR/change-ty-to-const-param-sugg-1.rs:6:18
   |
LL | struct Tagged<T: Tag, O: Options>;
   |                  ^^^ not a trait
   |
help: you might have meant to write a const parameter here
   |
LL | struct Tagged<const T: Tag, O: Options>;
   |               +++++

error[E0404]: expected trait, found struct `Options`
  --> $DIR/change-ty-to-const-param-sugg-1.rs:6:26
   |
LL | struct Tagged<T: Tag, O: Options>;
   |                          ^^^^^^^ not a trait
   |
help: you might have meant to write a const parameter here
   |
LL | struct Tagged<T: Tag, const O: Options>;
   |                       +++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0404`.