remove feature(trait_upcasting) from tests and bless them

Author: WaffleLapkin

tests/codegen/vtable-upcast.rs

@@ -2,7 +2,6 @@
 //@ compile-flags: -C no-prepopulate-passes -Copt-level=0
 
 #![crate_type = "lib"]
-#![feature(trait_upcasting)]
 
 pub trait Base {
     fn base(&self);

tests/crashes/131886.rs

@@ -1,6 +1,6 @@
 //@ known-bug: #131886
 //@ compile-flags: -Zvalidate-mir --crate-type=lib
-#![feature(trait_upcasting, type_alias_impl_trait)]
+#![feature(type_alias_impl_trait)]
 
 type Tait = impl Sized;
 

tests/ui/codegen/issue-99551.rs

@@ -1,5 +1,4 @@
 //@ build-pass
-#![feature(trait_upcasting)]
 
 pub trait A {}
 pub trait B {}

tests/ui/dyn-star/no-unsize-coerce-dyn-trait.rs

@@ -1,5 +1,5 @@
-#![feature(dyn_star, trait_upcasting)]
-//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
+#![expect(incomplete_features)]
+#![feature(dyn_star)]
 
 trait A: B {}
 trait B {}

tests/ui/dyn-star/no-unsize-coerce-dyn-trait.stderr

@@ -1,12 +1,3 @@
-warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/no-unsize-coerce-dyn-trait.rs:1:12
-   |
-LL | #![feature(dyn_star, trait_upcasting)]
-   |            ^^^^^^^^
-   |
-   = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information
-   = note: `#[warn(incomplete_features)]` on by default
-
 error[E0308]: mismatched types
   --> $DIR/no-unsize-coerce-dyn-trait.rs:11:26
    |
@@ -18,6 +9,6 @@ LL |     let y: Box<dyn* B> = x;
    = note: expected struct `Box<dyn* B>`
               found struct `Box<dyn* A>`
 
-error: aborting due to 1 previous error; 1 warning emitted
+error: aborting due to 1 previous error
 
 For more information about this error, try `rustc --explain E0308`.

tests/ui/dyn-star/upcast.rs

@@ -1,6 +1,6 @@
 //@ known-bug: #104800
 
-#![feature(dyn_star, trait_upcasting)]
+#![feature(dyn_star)]
 
 trait Foo: Bar {
     fn hello(&self);

tests/ui/dyn-star/upcast.stderr

@@ -1,7 +1,7 @@
 warning: the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/upcast.rs:3:12
    |
-LL | #![feature(dyn_star, trait_upcasting)]
+LL | #![feature(dyn_star)]
    |            ^^^^^^^^
    |
    = note: see issue #102425 <https://github.com/rust-lang/rust/issues/102425> for more information

tests/ui/feature-gates/feature-gate-trait_upcasting.rs

@@ -1,5 +1,5 @@
 error[E0277]: the size for values of type `impl Trait + ?Sized` cannot be known at compilation time
-  --> $DIR/unsized_coercion5.rs:17:32
+  --> $DIR/unsized_coercion5.rs:15:32
    |
 LL |         let y: Box<dyn Send> = x as Box<dyn Trait + Send>;
    |                                ^ doesn't have a size known at compile-time