ices/52843.rs: fixed with errors

=== stdout ===
=== stderr ===
error[E0277]: the trait bound `T: Default` is not satisfied
 --> /home/runner/work/glacier/glacier/ices/52843.rs:3:15
  |
3 | type Foo<T> = impl Default;
  |               ^^^^^^^^^^^^ the trait `Default` is not implemented for `T`
  |
help: consider restricting type parameter `T`
  |
3 | type Foo<T: Default> = impl Default;
  |           ^^^^^^^^^

error: aborting due to previous error

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

Author: rustbot