update tests

Author: lcnr

Diff for: src/test/ui/impl-trait/issues/issue-70877.stderr

@@ -5,8 +5,13 @@ LL | type FooRet = impl std::fmt::Debug;
    |               -------------------- the found opaque type
 ...
 LL | type Foo = impl Iterator<Item = FooItem>;
-   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Option`, found opaque type
+   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type mismatch resolving `<Bar as Iterator>::Item == Box<(dyn for<'r> Fn(&'r (dyn ToString + 'r)) -> Option<String> + 'static)>`
    |
+note: expected this to be `Box<(dyn for<'r> Fn(&'r (dyn ToString + 'r)) -> Option<String> + 'static)>`
+  --> $DIR/issue-70877.rs:13:17
+   |
+LL |     type Item = FooItem;
+   |                 ^^^^^^^
    = note: expected struct `Box<(dyn for<'r> Fn(&'r (dyn ToString + 'r)) -> Option<String> + 'static)>`
               found struct `Box<(dyn for<'r> Fn(&'r (dyn ToString + 'r)) -> impl Debug + 'static)>`
 

Diff for: src/test/ui/suggestions/issue-71394-no-from-impl.stderr

@@ -4,9 +4,6 @@ error[E0277]: the trait bound `&[i8]: From<&[u8]>` is not satisfied
 LL |     let _: &[i8] = data.into();
    |                         ^^^^ the trait `From<&[u8]>` is not implemented for `&[i8]`
    |
-   = help: the following implementations were found:
-             <[T; LANES] as From<Simd<T, LANES>>>
-             <[bool; LANES] as From<Mask<T, LANES>>>
    = note: required because of the requirements on the impl of `Into<&[i8]>` for `&[u8]`
 
 error: aborting due to previous error