Rollup merge of #111048 - compiler-errors:rpitit-not-incomplete, r=jackh726

Mark`feature(return_position_impl_trait_in_trait)` and`feature(async_fn_in_trait)` as not incomplete

I think they've graduated, since as far as I'm aware, they don't cause compiler crashes or unsoundness anymore.

Author: Dylan-DPC

compiler/rustc_feature/src/active.rs

@@ -310,7 +310,7 @@ declare_features! (
     /// Allows `async || body` closures.
     (active, async_closure, "1.37.0", Some(62290), None),
     /// Allows async functions to be declared, implemented, and used in traits.
-    (incomplete, async_fn_in_trait, "1.66.0", Some(91611), None),
+    (active, async_fn_in_trait, "1.66.0", Some(91611), None),
     /// Treat `extern "C"` function as nounwind.
     (active, c_unwind, "1.52.0", Some(74990), None),
     /// Allows using C-variadics.
@@ -494,7 +494,7 @@ declare_features! (
     /// Allows `repr(simd)` and importing the various simd intrinsics.
     (active, repr_simd, "1.4.0", Some(27731), None),
     /// Allows return-position `impl Trait` in traits.
-    (incomplete, return_position_impl_trait_in_trait, "1.65.0", Some(91611), None),
+    (active, return_position_impl_trait_in_trait, "1.65.0", Some(91611), None),
     /// Allows bounding the return type of AFIT/RPITIT.
     (incomplete, return_type_notation, "1.70.0", Some(109417), None),
     /// Allows `extern "rust-cold"`.

tests/ui/associated-type-bounds/return-type-notation/bad-inputs-and-output.rs

@@ -2,7 +2,6 @@
 
 #![feature(return_type_notation, async_fn_in_trait)]
 //~^ WARN the feature `return_type_notation` is incomplete
-//~| WARN the feature `async_fn_in_trait` is incomplete
 
 trait Trait {
     async fn method() {}

tests/ui/associated-type-bounds/return-type-notation/bad-inputs-and-output.stderr

@@ -1,11 +1,11 @@
 error: return type notation uses `()` instead of `(..)` for elided arguments
-  --> $DIR/bad-inputs-and-output.rs:19:24
+  --> $DIR/bad-inputs-and-output.rs:18:24
    |
 LL | fn baz<T: Trait<method(..): Send>>() {}
    |                        ^^ help: remove the `..`
 
 error[E0658]: associated type bounds are unstable
-  --> $DIR/bad-inputs-and-output.rs:11:17
+  --> $DIR/bad-inputs-and-output.rs:10:17
    |
 LL | fn foo<T: Trait<method(i32): Send>>() {}
    |                 ^^^^^^^^^^^^^^^^^
@@ -14,7 +14,7 @@ LL | fn foo<T: Trait<method(i32): Send>>() {}
    = help: add `#![feature(associated_type_bounds)]` to the crate attributes to enable
 
 error[E0658]: associated type bounds are unstable
-  --> $DIR/bad-inputs-and-output.rs:15:17
+  --> $DIR/bad-inputs-and-output.rs:14:17
    |
 LL | fn bar<T: Trait<method() -> (): Send>>() {}
    |                 ^^^^^^^^^^^^^^^^^^^^
@@ -31,26 +31,18 @@ LL | #![feature(return_type_notation, async_fn_in_trait)]
    = note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/bad-inputs-and-output.rs:3:34
-   |
-LL | #![feature(return_type_notation, async_fn_in_trait)]
-   |                                  ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-
 error: argument types not allowed with return type notation
-  --> $DIR/bad-inputs-and-output.rs:11:23
+  --> $DIR/bad-inputs-and-output.rs:10:23
    |
 LL | fn foo<T: Trait<method(i32): Send>>() {}
    |                       ^^^^^ help: remove the input types: `()`
 
 error: return type not allowed with return type notation
-  --> $DIR/bad-inputs-and-output.rs:15:25
+  --> $DIR/bad-inputs-and-output.rs:14:25
    |
 LL | fn bar<T: Trait<method() -> (): Send>>() {}
    |                         ^^^^^^ help: remove the return type
 
-error: aborting due to 5 previous errors; 2 warnings emitted
+error: aborting due to 5 previous errors; 1 warning emitted
 
 For more information about this error, try `rustc --explain E0658`.

tests/ui/associated-type-bounds/return-type-notation/basic.rs

@@ -4,7 +4,6 @@
 
 #![feature(return_type_notation, async_fn_in_trait)]
 //~^ WARN the feature `return_type_notation` is incomplete
-//~| WARN the feature `async_fn_in_trait` is incomplete
 
 trait Foo {
     async fn method() -> Result<(), ()>;

tests/ui/associated-type-bounds/return-type-notation/basic.with.stderr

@@ -7,13 +7,5 @@ LL | #![feature(return_type_notation, async_fn_in_trait)]
    = note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/basic.rs:5:34
-   |
-LL | #![feature(return_type_notation, async_fn_in_trait)]
-   |                                  ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-
-warning: 2 warnings emitted
+warning: 1 warning emitted
 

tests/ui/associated-type-bounds/return-type-notation/basic.without.stderr

@@ -7,31 +7,23 @@ LL | #![feature(return_type_notation, async_fn_in_trait)]
    = note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/basic.rs:5:34
-   |
-LL | #![feature(return_type_notation, async_fn_in_trait)]
-   |                                  ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-
 error: future cannot be sent between threads safely
-  --> $DIR/basic.rs:24:13
+  --> $DIR/basic.rs:23:13
    |
 LL |     is_send(foo::<T>());
    |             ^^^^^^^^^^ future returned by `foo` is not `Send`
    |
    = help: within `impl Future<Output = Result<(), ()>>`, the trait `Send` is not implemented for `impl Future<Output = Result<(), ()>>`
 note: future is not `Send` as it awaits another future which is not `Send`
-  --> $DIR/basic.rs:14:5
+  --> $DIR/basic.rs:13:5
    |
 LL |     T::method().await?;
    |     ^^^^^^^^^^^ await occurs here on type `impl Future<Output = Result<(), ()>>`, which is not `Send`
 note: required by a bound in `is_send`
-  --> $DIR/basic.rs:18:20
+  --> $DIR/basic.rs:17:20
    |
 LL | fn is_send(_: impl Send) {}
    |                    ^^^^ required by this bound in `is_send`
 
-error: aborting due to previous error; 2 warnings emitted
+error: aborting due to previous error; 1 warning emitted
 

tests/ui/associated-type-bounds/return-type-notation/equality.rs

@@ -2,7 +2,6 @@
 
 #![feature(return_type_notation, async_fn_in_trait)]
 //~^ WARN the feature `return_type_notation` is incomplete
-//~| WARN the feature `async_fn_in_trait` is incomplete
 
 use std::future::Future;
 

tests/ui/associated-type-bounds/return-type-notation/equality.stderr

@@ -7,19 +7,11 @@ LL | #![feature(return_type_notation, async_fn_in_trait)]
    = note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/equality.rs:3:34
-   |
-LL | #![feature(return_type_notation, async_fn_in_trait)]
-   |                                  ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-
 error: return type notation is not allowed to use type equality
-  --> $DIR/equality.rs:13:18
+  --> $DIR/equality.rs:12:18
    |
 LL | fn test<T: Trait<method() = Box<dyn Future<Output = ()>>>>() {}
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to previous error; 2 warnings emitted
+error: aborting due to previous error; 1 warning emitted
 

tests/ui/associated-type-bounds/return-type-notation/missing.rs

@@ -2,7 +2,6 @@
 
 #![feature(return_type_notation, async_fn_in_trait)]
 //~^ WARN the feature `return_type_notation` is incomplete
-//~| WARN the feature `async_fn_in_trait` is incomplete
 
 trait Trait {
     async fn method() {}

tests/ui/associated-type-bounds/return-type-notation/missing.stderr

@@ -7,19 +7,11 @@ LL | #![feature(return_type_notation, async_fn_in_trait)]
    = note: see issue #109417 <https://github.com/rust-lang/rust/issues/109417> for more information
    = note: `#[warn(incomplete_features)]` on by default
 
-warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/missing.rs:3:34
-   |
-LL | #![feature(return_type_notation, async_fn_in_trait)]
-   |                                  ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-
 error: cannot find associated function `methid` in trait `Trait`
-  --> $DIR/missing.rs:11:17
+  --> $DIR/missing.rs:10:17
    |
 LL | fn bar<T: Trait<methid(): Send>>() {}
    |                 ^^^^^^^^^^^^^^
 
-error: aborting due to previous error; 2 warnings emitted
+error: aborting due to previous error; 1 warning emitted