update ui tests using opaque types in impl headers

Author: lqd

src/test/ui/type-alias-impl-trait/issue-84660-trait-impl-for-tait.rs

@@ -1,7 +1,7 @@
 // Regression test for issues #84660 and #86411: both are variations on #76202.
 // Tests that we don't ICE when we have an opaque type appearing anywhere in an impl header.
 
-#![feature(min_type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 trait Foo {}
 impl Foo for () {}

src/test/ui/type-alias-impl-trait/issue-84660-unsoundness.rs

@@ -1,7 +1,7 @@
 // Another example from issue #84660, this time weaponized as a safe transmut: an opaque type in an
 // impl header being accepted was used to create unsoundness.
 
-#![feature(min_type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 trait Foo {}
 impl Foo for () {}