Auto merge of #99462 - matthiaskrgr:rollup-ihhwaru, r=matthiaskrgr

Rollup of 9 pull requests

Successful merges:

 - #98028 (Add E0790 as more specific variant of E0283)
 - #99384 (use body's param-env when checking if type needs drop)
 - #99401 (Avoid `Symbol` to `&str` conversions)
 - #99419 (Stabilize `core::task::ready!`)
 - #99435 (Revert "Stabilize $$ in Rust 1.63.0")
 - #99438 (Improve suggestions for `NonZeroT` <- `T` coercion error)
 - #99441 (Update mdbook)
 - #99453 (:arrow_up: rust-analyzer)
 - #99457 (use `par_for_each_in` in `par_body_owners` and `collect_crate_mono_items`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

core/src/num/nonzero.rs

@@ -39,6 +39,7 @@ macro_rules! nonzero_integers {
             #[repr(transparent)]
             #[rustc_layout_scalar_valid_range_start(1)]
             #[rustc_nonnull_optimization_guaranteed]
+            #[rustc_diagnostic_item = stringify!($Ty)]
             pub struct $Ty($Int);
 
             impl $Ty {

core/src/task/mod.rs

@@ -11,7 +11,7 @@ mod wake;
 pub use self::wake::{Context, RawWaker, RawWakerVTable, Waker};
 
 mod ready;
-#[unstable(feature = "ready_macro", issue = "70922")]
+#[stable(feature = "ready_macro", since = "1.64.0")]
 pub use ready::ready;
 #[unstable(feature = "poll_ready", issue = "89780")]
 pub use ready::Ready;

core/src/task/ready.rs

@@ -13,8 +13,6 @@ use core::task::Poll;
 /// # Examples
 ///
 /// ```
-/// #![feature(ready_macro)]
-///
 /// use std::task::{ready, Context, Poll};
 /// use std::future::{self, Future};
 /// use std::pin::Pin;
@@ -34,7 +32,6 @@ use core::task::Poll;
 /// The `ready!` call expands to:
 ///
 /// ```
-/// # #![feature(ready_macro)]
 /// # use std::task::{Context, Poll};
 /// # use std::future::{self, Future};
 /// # use std::pin::Pin;
@@ -53,7 +50,7 @@ use core::task::Poll;
 ///     # Poll::Ready(())
 /// # }
 /// ```
-#[unstable(feature = "ready_macro", issue = "70922")]
+#[stable(feature = "ready_macro", since = "1.64.0")]
 #[rustc_macro_transparency = "semitransparent"]
 pub macro ready($e:expr) {
     match $e {