error: `?Trait` is not permitted in supertraits
  --> $DIR/maybe-bounds.rs:1:11
   |
LL | trait Tr: ?Sized {} //~ ERROR `?Trait` is not permitted in supertraits
   |           ^^^^^^
   |
   = note: traits are `?Sized` by default

error: `?Trait` is not permitted in trait object types
  --> $DIR/maybe-bounds.rs:3:16
   |
LL | type A1 = Tr + (?Sized); //~ ERROR `?Trait` is not permitted in trait object types
   |                ^^^^^^^^

error: `?Trait` is not permitted in trait object types
  --> $DIR/maybe-bounds.rs:4:24
   |
LL | type A2 = for<'a> Tr + (?Sized); //~ ERROR `?Trait` is not permitted in trait object types
   |                        ^^^^^^^^

error: aborting due to 3 previous errors