ices/59494.rs: fixed with errors

=== stdout ===
=== stderr ===
error[E0277]: expected a `Fn<(_,)>` closure, found `impl Fn<(((_, _), _),)>`
  --> /home/runner/work/glacier/glacier/ices/59494.rs:23:20
   |
6  | fn t8n<A,B,C>( f:impl Fn(A) -> B, g:impl Fn(A) -> C ) -> impl Fn(A) -> (B,C)
   |                                          ---------- required by this bound in `t8n`
...
23 |   let t8 = t8n(t7, t7p(f, g));
   |                    ^^^^^^^^^ expected an `Fn<(_,)>` closure, found `impl Fn<(((_, _), _),)>`
   |
   = help: the trait `Fn<(_,)>` is not implemented for `impl Fn<(((_, _), _),)>`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
==============

Author: rustbot