Move `#[do_not_recommend]` to the `#[diagnostic]` namespace

This commit moves the `#[do_not_recommend]` attribute to the
`#[diagnostic]` namespace. It still requires
`#![feature(do_not_recommend)]` to work.

6 files changed, 0 insertions, 154 deletions

diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.rs b/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.rs
deleted file mode 100644
index c9dc1c6e649..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-#![feature(do_not_recommend)]
-
-pub trait Foo {
-}
-
-impl Foo for i32 {
-}
-
-pub trait Bar {
-}
-
-#[do_not_recommend]
-impl<T: Foo> Bar for T {
-}
-
-fn stuff<T: Bar>(_: T) {}
-
-fn main() {
-    stuff(1u8);
-    //~^ the trait bound `u8: Bar` is not satisfied
-}
diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.stderr b/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.stderr
deleted file mode 100644
index e6f199445bf..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/feature-gate-do_not_recommend.stderr
+++ /dev/null
@@ -1,15 +0,0 @@
-error[E0277]: the trait bound `u8: Bar` is not satisfied
-  --> $DIR/feature-gate-do_not_recommend.rs:19:11
-   |
-LL |     stuff(1u8);
-   |           ^^^ the trait `Bar` is not implemented for `u8`
-   |
-note: required by a bound in `stuff`
-  --> $DIR/feature-gate-do_not_recommend.rs:16:13
-   |
-LL | fn stuff<T: Bar>(_: T) {}
-   |             ^^^ required by this bound in `stuff`
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.rs b/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.rs
deleted file mode 100644
index 91863f5e497..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-#![feature(do_not_recommend)]
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-const CONST: () = ();
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-static Static: () = ();
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-type Type = ();
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-enum Enum {
-}
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-extern {
-}
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-fn fun() {
-}
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-struct Struct {
-}
-
-#[do_not_recommend]
-//~^ `#[do_not_recommend]` can only be placed
-trait Trait {
-}
-
-#[do_not_recommend]
-impl Trait for i32 {
-}
-
-fn main() {
-}
diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.stderr b/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.stderr
deleted file mode 100644
index 01ebc23c86e..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/incorrect-locations.stderr
+++ /dev/null
@@ -1,50 +0,0 @@
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:3:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:7:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:11:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:15:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:20:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:25:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:30:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: `#[do_not_recommend]` can only be placed on trait implementations
-  --> $DIR/incorrect-locations.rs:35:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-
-error: aborting due to 8 previous errors
-
diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.rs b/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.rs
deleted file mode 100644
index f0c5c222e78..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-trait Foo {
-}
-
-#[do_not_recommend]
-//~^ ERROR the `#[do_not_recommend]` attribute is an experimental feature
-impl Foo for i32 {
-}
-
-fn main() {
-}
diff --git a/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.stderr b/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.stderr
deleted file mode 100644
index 02bc51ccd3f..00000000000
--- a/tests/ui/rfcs/rfc-2397-do-not-recommend/unstable-feature.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0658]: the `#[do_not_recommend]` attribute is an experimental feature
-  --> $DIR/unstable-feature.rs:4:1
-   |
-LL | #[do_not_recommend]
-   | ^^^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #51992 <https://github.com/rust-lang/rust/issues/51992> for more information
-   = help: add `#![feature(do_not_recommend)]` 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
-
-For more information about this error, try `rustc --explain E0658`.