Rollup merge of rust-lang#75464 - poliorcetics:intra-links-panic-and-ascii, r=jyn514

Move to intra doc links for ascii.rs and panic.rs

Helps with rust-lang#75080.

@rustbot modify labels: T-doc, A-intra-doc-links, T-rustdoc

I also updated the doc to fix the wording in `AsciiExt` since it is now deprecated.
The two file are small changes so I bundled them together.

Some links could not be changed to make them work, I believe those are known issues with primitive types.

Author: JohnTitor

library/std/src/ascii.rs

@@ -10,9 +10,6 @@
 //!
 //! The [`escape_default`] function provides an iterator over the bytes of an
 //! escaped version of the character given.
-//!
-//! [`AsciiExt`]: trait.AsciiExt.html
-//! [`escape_default`]: fn.escape_default.html
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
@@ -52,7 +49,7 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     #[stable(feature = "rust1", since = "1.0.0")]
     fn is_ascii(&self) -> bool;
@@ -69,10 +66,10 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     ///
-    /// [`make_ascii_uppercase`]: #tymethod.make_ascii_uppercase
+    /// [`make_ascii_uppercase`]: AsciiExt::make_ascii_uppercase
     /// [`str::to_uppercase`]: ../primitive.str.html#method.to_uppercase
     #[stable(feature = "rust1", since = "1.0.0")]
     #[allow(deprecated)]
@@ -90,10 +87,10 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     ///
-    /// [`make_ascii_lowercase`]: #tymethod.make_ascii_lowercase
+    /// [`make_ascii_lowercase`]: AsciiExt::make_ascii_lowercase
     /// [`str::to_lowercase`]: ../primitive.str.html#method.to_lowercase
     #[stable(feature = "rust1", since = "1.0.0")]
     #[allow(deprecated)]
@@ -106,7 +103,7 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     #[stable(feature = "rust1", since = "1.0.0")]
     fn eq_ignore_ascii_case(&self, other: &Self) -> bool;
@@ -121,10 +118,10 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     ///
-    /// [`to_ascii_uppercase`]: #tymethod.to_ascii_uppercase
+    /// [`to_ascii_uppercase`]: AsciiExt::to_ascii_uppercase
     #[stable(feature = "ascii", since = "1.9.0")]
     fn make_ascii_uppercase(&mut self);
 
@@ -138,10 +135,10 @@ pub trait AsciiExt {
     ///
     /// # Note
     ///
-    /// This method will be deprecated in favor of the identically-named
+    /// This method is deprecated in favor of the identically-named
     /// inherent methods on `u8`, `char`, `[u8]` and `str`.
     ///
-    /// [`to_ascii_lowercase`]: #tymethod.to_ascii_lowercase
+    /// [`to_ascii_lowercase`]: AsciiExt::to_ascii_lowercase
     #[stable(feature = "ascii", since = "1.9.0")]
     fn make_ascii_lowercase(&mut self);
 }

library/std/src/panic.rs

@@ -30,10 +30,6 @@ pub use core::panic::{Location, PanicInfo};
 /// purpose of this trait is to encode what types are safe to cross a [`catch_unwind`]
 /// boundary with no fear of unwind safety.
 ///
-/// [`Send`]: ../marker/trait.Send.html
-/// [`Sync`]: ../marker/trait.Sync.html
-/// [`catch_unwind`]: ./fn.catch_unwind.html
-///
 /// ## What is unwind safety?
 ///
 /// In Rust a function can "return" early if it either panics or calls a
@@ -99,8 +95,6 @@ pub use core::panic::{Location, PanicInfo};
 /// above, the lack of `unsafe` means it is mostly an advisory. The
 /// [`AssertUnwindSafe`] wrapper struct can be used to force this trait to be
 /// implemented for any closed over variables passed to `catch_unwind`.
-///
-/// [`AssertUnwindSafe`]: ./struct.AssertUnwindSafe.html
 #[stable(feature = "catch_unwind", since = "1.9.0")]
 #[rustc_on_unimplemented(
     message = "the type `{Self}` may not be safely transferred across an unwind boundary",
@@ -116,9 +110,6 @@ pub auto trait UnwindSafe {}
 ///
 /// This is a "helper marker trait" used to provide impl blocks for the
 /// [`UnwindSafe`] trait, for more information see that documentation.
-///
-/// [`UnsafeCell`]: ../cell/struct.UnsafeCell.html
-/// [`UnwindSafe`]: ./trait.UnwindSafe.html
 #[stable(feature = "catch_unwind", since = "1.9.0")]
 #[rustc_on_unimplemented(
     message = "the type `{Self}` may contain interior mutability and a reference may not be safely \
@@ -138,7 +129,6 @@ pub auto trait RefUnwindSafe {}
 /// account. This wrapper struct is useful for a quick and lightweight
 /// annotation that a variable is indeed unwind safe.
 ///
-/// [`catch_unwind`]: ./fn.catch_unwind.html
 /// # Examples
 ///
 /// One way to use `AssertUnwindSafe` is to assert that the entire closure
@@ -352,8 +342,6 @@ impl<F: Future> Future for AssertUnwindSafe<F> {
 /// can fail on a regular basis. Additionally, this function is not guaranteed
 /// to catch all panics, see the "Notes" section below.
 ///
-/// [`Result`]: ../result/enum.Result.html
-///
 /// The closure provided is required to adhere to the [`UnwindSafe`] trait to ensure
 /// that all captured variables are safe to cross this boundary. The purpose of
 /// this bound is to encode the concept of [exception safety][rfc] in the type
@@ -362,9 +350,6 @@ impl<F: Future> Future for AssertUnwindSafe<F> {
 /// becomes a problem the [`AssertUnwindSafe`] wrapper struct can be used to quickly
 /// assert that the usage here is indeed unwind safe.
 ///
-/// [`AssertUnwindSafe`]: ./struct.AssertUnwindSafe.html
-/// [`UnwindSafe`]: ./trait.UnwindSafe.html
-///
 /// [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1236-stabilize-catch-panic.md
 ///
 /// # Notes
@@ -399,8 +384,6 @@ pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> {
 /// This is designed to be used in conjunction with [`catch_unwind`] to, for
 /// example, carry a panic across a layer of C code.
 ///
-/// [`catch_unwind`]: ./fn.catch_unwind.html
-///
 /// # Notes
 ///
 /// Note that panics in Rust are not always implemented via unwinding, but they