Update tests

Author: estebank

tests/ui/traits/const-traits/const-traits-alloc.rs

@@ -1,5 +1,5 @@
 //@ run-pass
-#![feature(const_trait_impl)]
+#![feature(const_trait_impl, const_default)]
 #![allow(dead_code)]
 // alloc::string
 const STRING: String = Default::default();

tests/ui/traits/const-traits/const-traits-core.rs

@@ -1,5 +1,7 @@
 //@ run-pass
-#![feature(const_trait_impl, ptr_alignment_type, ascii_char, f16, f128, sync_unsafe_cell)]
+#![feature(
+    const_default, const_trait_impl, ptr_alignment_type, ascii_char, f16, f128, sync_unsafe_cell,
+)]
 #![allow(dead_code)]
 // core::default
 const UNIT: () = Default::default();

tests/ui/traits/const-traits/const_derives/derive-const-use.rs

@@ -1,6 +1,6 @@
 //@ known-bug: #110395
 
-#![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
+#![feature(const_trait_impl, const_cmp, const_default, derive_const)]
 
 pub struct A;
 

tests/ui/traits/const-traits/const_derives/derive-const-use.stderr

@@ -1,15 +1,9 @@
 error[E0635]: unknown feature `const_cmp`
   --> $DIR/derive-const-use.rs:3:30
    |
-LL | #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
+LL | #![feature(const_trait_impl, const_cmp, const_default, derive_const)]
    |                              ^^^^^^^^^
 
-error[E0635]: unknown feature `const_default_impls`
-  --> $DIR/derive-const-use.rs:3:41
-   |
-LL | #![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
-   |                                         ^^^^^^^^^^^^^^^^^^^
-
 error: const `impl` for trait `PartialEq` which is not marked with `#[const_trait]`
   --> $DIR/derive-const-use.rs:11:12
    |
@@ -59,7 +53,7 @@ LL | pub struct S((), A);
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
    = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: aborting due to 7 previous errors
+error: aborting due to 6 previous errors
 
 Some errors have detailed explanations: E0015, E0635.
 For more information about an error, try `rustc --explain E0015`.

tests/ui/traits/const-traits/std-impl-gate.gated.stderr

@@ -2,8 +2,9 @@
 
 //@ revisions: stock gated
 //@[gated] known-bug: #110395
+//@[gated] run-pass
 
-#![cfg_attr(gated, feature(const_trait_impl, const_default_impls))]
+#![cfg_attr(gated, feature(const_trait_impl, const_default))]
 
 fn non_const_context() -> Vec<usize> {
     Default::default()
@@ -12,6 +13,7 @@ fn non_const_context() -> Vec<usize> {
 const fn const_context() -> Vec<usize> {
     Default::default()
     //[stock]~^ ERROR cannot call conditionally-const associated function
+    //[stock]~| ERROR `Default` is not yet stable as a const trait
 }
 
 fn main() {

tests/ui/traits/const-traits/std-impl-gate.rs

@@ -1,13 +1,25 @@
 error[E0658]: cannot call conditionally-const associated function `<Vec<usize> as Default>::default` in constant functions
-  --> $DIR/std-impl-gate.rs:13:5
+  --> $DIR/std-impl-gate.rs:14:5
    |
 LL |     Default::default()
    |     ^^^^^^^^^^^^^^^^^^
    |
+   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
    = note: see issue #67792 <https://github.com/rust-lang/rust/issues/67792> for more information
    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
-error: aborting due to 1 previous error
+error: `Default` is not yet stable as a const trait
+  --> $DIR/std-impl-gate.rs:14:5
+   |
+LL |     Default::default()
+   |     ^^^^^^^^^^^^^^^^^^
+   |
+help: add `#![feature(const_default)]` to the crate attributes to enable
+   |
+LL + #![feature(const_default)]
+   |
+
+error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0658`.