Update test

tests/ui/entry-point/return-ty-has-bound-vars.rs

@@ -1,5 +1,3 @@
 // issue-119209
 
-type Foo<'a> = impl PartialEq; //~ERROR `impl Trait` in type aliases is unstable
-
-fn main<'a>(_: &'a i32) -> Foo<'a> {} //~ERROR `main` function return type is not allowed to have generic parameters
+fn main<'a>(_: &'a i32) -> &'a () { &() } //~ERROR `main` function return type is not allowed to have generic parameters

tests/ui/entry-point/return-ty-has-bound-vars.stderr

@@ -1,19 +1,9 @@
-error[E0658]: `impl Trait` in type aliases is unstable
-  --> $DIR/return-ty-has-bound-vars.rs:3:16
-   |
-LL | type Foo<'a> = impl PartialEq;
-   |                ^^^^^^^^^^^^^^
-   |
-   = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
-   = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
-
 error[E0131]: `main` function return type is not allowed to have generic parameters
-  --> $DIR/return-ty-has-bound-vars.rs:5:28
+  --> $DIR/return-ty-has-bound-vars.rs:3:28
    |
-LL | fn main<'a>(_: &'a i32) -> Foo<'a> {}
-   |                            ^^^^^^^
+LL | fn main<'a>(_: &'a i32) -> &'a () { &() }
+   |                            ^^^^^^
 
-error: aborting due to 2 previous errors
+error: aborting due to 1 previous error
 
-Some errors have detailed explanations: E0131, E0658.
-For more information about an error, try `rustc --explain E0131`.
+For more information about this error, try `rustc --explain E0131`.