Auto merge of #84864 - Mark-Simulacrum:stable-next, r=Mark-Simulacrum 1.52.0

[stable] 1.52.0 release

This includes the release notes (#84183) as well as cherry-picked commits from:

* [beta] revert PR #77885 #84710
* [beta] remove assert_matches #84759
* Revert PR 81473 to resolve (on beta) issues 81626 and 81658. #83171
* [beta] rustdoc revert deref recur #84868
*  Fix ICE of for-loop mut borrowck where no suggestions are available #83401

Additionally in "fresh work" we're also:

* reverting: directly expose copy and copy_nonoverlapping intrinsics #81238 to avoid https://github.com/rust-lang/rust/issues/84297 on 1.52

2 files changed, 0 insertions, 114 deletions

diff --git a/src/test/ui/consts/copy-intrinsic.rs b/src/test/ui/consts/copy-intrinsic.rs
deleted file mode 100644
index 9dc595f37fa..00000000000
--- a/src/test/ui/consts/copy-intrinsic.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-// ignore-tidy-linelength
-#![feature(const_mut_refs, const_intrinsic_copy, const_ptr_offset)]
-use std::{ptr, mem};
-
-const COPY_ZERO: () = unsafe {
-    // Since we are not copying anything, this should be allowed.
-    let src = ();
-    let mut dst = ();
-    ptr::copy_nonoverlapping(&src as *const _ as *const i32, &mut dst as *mut _ as *mut i32, 0);
-};
-
-const COPY_OOB_1: () = unsafe {
-    let mut x = 0i32;
-    let dangle = (&mut x as *mut i32).wrapping_add(10);
-    // Even if the first ptr is an int ptr and this is a ZST copy, we should detect dangling 2nd ptrs.
-    ptr::copy_nonoverlapping(0x100 as *const i32, dangle, 0); //~ ERROR any use of this value will cause an error
-    //~| memory access failed: pointer must be in-bounds
-    //~| previously accepted
-};
-const COPY_OOB_2: () = unsafe {
-    let x = 0i32;
-    let dangle = (&x as *const i32).wrapping_add(10);
-    // Even if the second ptr is an int ptr and this is a ZST copy, we should detect dangling 1st ptrs.
-    ptr::copy_nonoverlapping(dangle, 0x100 as *mut i32, 0); //~ ERROR any use of this value will cause an error
-    //~| memory access failed: pointer must be in-bounds
-    //~| previously accepted
-};
-
-const COPY_SIZE_OVERFLOW: () = unsafe {
-    let x = 0;
-    let mut y = 0;
-    ptr::copy(&x, &mut y, 1usize << (mem::size_of::<usize>() * 8 - 1)); //~ ERROR any use of this value will cause an error
-    //~| overflow computing total size of `copy`
-    //~| previously accepted
-};
-const COPY_NONOVERLAPPING_SIZE_OVERFLOW: () = unsafe {
-    let x = 0;
-    let mut y = 0;
-    ptr::copy_nonoverlapping(&x, &mut y, 1usize << (mem::size_of::<usize>() * 8 - 1)); //~ ERROR any use of this value will cause an error
-    //~| overflow computing total size of `copy_nonoverlapping`
-    //~| previously accepted
-};
-
-fn main() {
-}
diff --git a/src/test/ui/consts/copy-intrinsic.stderr b/src/test/ui/consts/copy-intrinsic.stderr
deleted file mode 100644
index 2736cdeac69..00000000000
--- a/src/test/ui/consts/copy-intrinsic.stderr
+++ /dev/null
@@ -1,69 +0,0 @@
-error: any use of this value will cause an error
-  --> $DIR/copy-intrinsic.rs:16:5
-   |
-LL | / const COPY_OOB_1: () = unsafe {
-LL | |     let mut x = 0i32;
-LL | |     let dangle = (&mut x as *mut i32).wrapping_add(10);
-LL | |     // Even if the first ptr is an int ptr and this is a ZST copy, we should detect dangling 2nd ptrs.
-LL | |     ptr::copy_nonoverlapping(0x100 as *const i32, dangle, 0);
-   | |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: pointer must be in-bounds at offset 40, but is outside bounds of alloc4 which has size 4
-LL | |
-LL | |
-LL | | };
-   | |__-
-   |
-   = note: `#[deny(const_err)]` on by default
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-
-error: any use of this value will cause an error
-  --> $DIR/copy-intrinsic.rs:24:5
-   |
-LL | / const COPY_OOB_2: () = unsafe {
-LL | |     let x = 0i32;
-LL | |     let dangle = (&x as *const i32).wrapping_add(10);
-LL | |     // Even if the second ptr is an int ptr and this is a ZST copy, we should detect dangling 1st ptrs.
-LL | |     ptr::copy_nonoverlapping(dangle, 0x100 as *mut i32, 0);
-   | |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: pointer must be in-bounds at offset 40, but is outside bounds of alloc6 which has size 4
-LL | |
-LL | |
-LL | | };
-   | |__-
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-
-error: any use of this value will cause an error
-  --> $DIR/copy-intrinsic.rs:32:5
-   |
-LL | / const COPY_SIZE_OVERFLOW: () = unsafe {
-LL | |     let x = 0;
-LL | |     let mut y = 0;
-LL | |     ptr::copy(&x, &mut y, 1usize << (mem::size_of::<usize>() * 8 - 1));
-   | |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflow computing total size of `copy`
-LL | |
-LL | |
-LL | | };
-   | |__-
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-
-error: any use of this value will cause an error
-  --> $DIR/copy-intrinsic.rs:39:5
-   |
-LL | / const COPY_NONOVERLAPPING_SIZE_OVERFLOW: () = unsafe {
-LL | |     let x = 0;
-LL | |     let mut y = 0;
-LL | |     ptr::copy_nonoverlapping(&x, &mut y, 1usize << (mem::size_of::<usize>() * 8 - 1));
-   | |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflow computing total size of `copy_nonoverlapping`
-LL | |
-LL | |
-LL | | };
-   | |__-
-   |
-   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
-   = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800>
-
-error: aborting due to 4 previous errors
-