Add #[const_trait] where needed in tests.

Author: BGR360

src/test/ui/rfc-2632-const-trait-impl/specialization/const-default-const-specialized.rs

@@ -6,6 +6,7 @@
 #![feature(const_trait_impl)]
 #![feature(min_specialization)]
 
+#[const_trait]
 trait Value {
     fn value() -> u32;
 }

src/test/ui/rfc-2632-const-trait-impl/specialization/const-default-non-const-specialized.rs

@@ -4,6 +4,7 @@
 #![feature(const_trait_impl)]
 #![feature(min_specialization)]
 
+#[const_trait]
 trait Value {
     fn value() -> u32;
 }

src/test/ui/rfc-2632-const-trait-impl/specialization/const-default-non-const-specialized.stderr

@@ -1,5 +1,5 @@
 error: cannot specialize on const impl with non-const impl
-  --> $DIR/const-default-non-const-specialized.rs:19:1
+  --> $DIR/const-default-non-const-specialized.rs:20:1
    |
 LL | impl Value for FortyTwo {
    | ^^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/rfc-2632-const-trait-impl/specialization/default-keyword.rs

@@ -3,6 +3,7 @@
 #![feature(const_trait_impl)]
 #![feature(min_specialization)]
 
+#[const_trait]
 trait Foo {
     fn foo();
 }

src/test/ui/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs

@@ -6,9 +6,11 @@
 #![feature(rustc_attrs)]
 #![feature(min_specialization)]
 
+#[const_trait]
 #[rustc_specialization_trait]
 trait Specialize {}
 
+#[const_trait]
 trait Foo {}
 
 impl<T> const Foo for T {}
@@ -18,6 +20,7 @@ where
     T: ~const Specialize,
 {}
 
+#[const_trait]
 trait Bar {}
 
 impl<T> const Bar for T

src/test/ui/rfc-2632-const-trait-impl/specialization/issue-95187-same-trait-bound-different-constness.rs

@@ -10,8 +10,10 @@
 #[rustc_specialization_trait]
 trait Specialize {}
 
+#[const_trait]
 trait Foo {}
 
+#[const_trait]
 trait Bar {}
 
 impl<T> Bar for T

src/test/ui/rfc-2632-const-trait-impl/specialization/non-const-default-const-specialized.rs

@@ -6,6 +6,7 @@
 #![feature(const_trait_impl)]
 #![feature(min_specialization)]
 
+#[const_trait]
 trait Value {
     fn value() -> u32;
 }