Bless UI tests

Author: Jules-Bertholet

tests/ui/explicit-tail-calls/callee_is_weird.stderr

@@ -12,7 +12,7 @@ error: tail calls can only be performed with function definitions or pointers
 LL |     become (&mut &std::sync::Exclusive::new(f))()
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: callee has type `Exclusive<fn() {f}>`
+   = note: callee has type `&Exclusive<fn() {f}>`
 
 error: tail calls can only be performed with function definitions or pointers
   --> $DIR/callee_is_weird.rs:22:12

tests/ui/impl-trait/where-allowed.stderr

@@ -387,6 +387,8 @@ LL | fn in_impl_Fn_return_in_return() -> &'static impl Fn() -> impl Debug { pani
              where A: Tuple, F: Fn<A>, F: ?Sized;
            - impl<Args, F, A> Fn<Args> for Box<F, A>
              where Args: Tuple, F: Fn<Args>, A: Allocator, F: ?Sized;
+           - impl<F, Args> Fn<Args> for Exclusive<F>
+             where F: Sync, F: Fn<Args>, Args: Tuple;
 
 error[E0118]: no nominal type found for inherent implementation
   --> $DIR/where-allowed.rs:240:1

tests/ui/traits/next-solver/well-formed-in-relate.stderr

@@ -12,6 +12,8 @@ LL |     x = unconstrained_map();
              where A: Tuple, F: Fn<A>, F: ?Sized;
            - impl<Args, F, A> Fn<Args> for Box<F, A>
              where Args: Tuple, F: Fn<Args>, A: Allocator, F: ?Sized;
+           - impl<F, Args> Fn<Args> for Exclusive<F>
+             where F: Sync, F: Fn<Args>, Args: Tuple;
 note: required by a bound in `unconstrained_map`
   --> $DIR/well-formed-in-relate.rs:21:25
    |