error: passing `TyCtxt<'tcx>` by reference
  --> $DIR/rustc_pass_by_value_self.rs:18:15
   |
LL |     fn by_ref(&self) {}
   |               ^^^^^ help: try passing by value: `TyCtxt<'tcx>`
   |
note: the lint level is defined here
  --> $DIR/rustc_pass_by_value_self.rs:8:9
   |
LL | #![deny(rustc::pass_by_value)]
   |         ^^^^^^^^^^^^^^^^^^^^

error: passing `Ty<'tcx>` by reference
  --> $DIR/rustc_pass_by_value_self.rs:30:21
   |
LL |     fn by_ref(self: &Ty<'tcx>) {}
   |                     ^^^^^^^^^ help: try passing by value: `Ty<'tcx>`

error: passing `Foo` by reference
  --> $DIR/rustc_pass_by_value_self.rs:37:17
   |
LL |     fn with_ref(&self) {}
   |                 ^^^^^ help: try passing by value: `Foo`

error: passing `WithParameters<T, 1>` by reference
  --> $DIR/rustc_pass_by_value_self.rs:47:17
   |
LL |     fn with_ref(&self) {}
   |                 ^^^^^ help: try passing by value: `WithParameters<T, 1>`

error: passing `WithParameters<T, 1, u8>` by reference
  --> $DIR/rustc_pass_by_value_self.rs:51:17
   |
LL |     fn with_ref(&self) {}
   |                 ^^^^^ help: try passing by value: `WithParameters<T, 1, u8>`

error: aborting due to 5 previous errors