Auto merge of #76964 - RalfJung:rollup-ybn06fs, r=RalfJung

Rollup of 15 pull requests

Successful merges:

 - #76722 (Test and fix Send and Sync traits of BTreeMap artefacts)
 - #76766 (Extract some intrinsics out of rustc_codegen_llvm)
 - #76800 (Don't generate bootstrap usage unless it's needed)
 - #76809 (simplfy condition in ItemLowerer::with_trait_impl_ref())
 - #76815 (Fix wording in mir doc)
 - #76818 (Don't compile regex at every function call.)
 - #76821 (Remove redundant nightly features)
 - #76823 (black_box: silence unused_mut warning when building with cfg(miri))
 - #76825 (use `array_windows` instead of `windows` in the compiler)
 - #76827 (fix array_windows docs)
 - #76828 (use strip_prefix over starts_with and manual slicing based on pattern length (clippy::manual_strip))
 - #76840 (Move to intra doc links in core/src/future)
 - #76845 (Use intra docs links in core::{ascii, option, str, pattern, hash::map})
 - #76853 (Use intra-doc links in library/core/src/task/wake.rs)
 - #76871 (support panic=abort in Miri)

Failed merges:

r? `@ghost`

2 files changed, 6 insertions, 6 deletions

diff --git a/compiler/rustc_mir_build/src/lib.rs b/compiler/rustc_mir_build/src/lib.rs
index e55180ff4be..714041ad4e8 100644
--- a/compiler/rustc_mir_build/src/lib.rs
+++ b/compiler/rustc_mir_build/src/lib.rs
@@ -1,7 +1,7 @@
 //! Construction of MIR from HIR.
 //!
 //! This crate also contains the match exhaustiveness and usefulness checking.
-
+#![feature(array_windows)]
 #![feature(box_patterns)]
 #![feature(box_syntax)]
 #![feature(const_fn)]
diff --git a/compiler/rustc_mir_build/src/thir/pattern/_match.rs b/compiler/rustc_mir_build/src/thir/pattern/_match.rs
index ad94740c160..eddd2882406 100644
--- a/compiler/rustc_mir_build/src/thir/pattern/_match.rs
+++ b/compiler/rustc_mir_build/src/thir/pattern/_match.rs
@@ -2299,19 +2299,19 @@ fn split_grouped_constructors<'p, 'tcx>(
                 // interval into a constructor.
                 split_ctors.extend(
                     borders
-                        .windows(2)
-                        .filter_map(|window| match (window[0], window[1]) {
-                            (Border::JustBefore(n), Border::JustBefore(m)) => {
+                        .array_windows()
+                        .filter_map(|&pair| match pair {
+                            [Border::JustBefore(n), Border::JustBefore(m)] => {
                                 if n < m {
                                     Some(IntRange { range: n..=(m - 1), ty, span })
                                 } else {
                                     None
                                 }
                             }
-                            (Border::JustBefore(n), Border::AfterMax) => {
+                            [Border::JustBefore(n), Border::AfterMax] => {
                                 Some(IntRange { range: n..=u128::MAX, ty, span })
                             }
-                            (Border::AfterMax, _) => None,
+                            [Border::AfterMax, _] => None,
                         })
                         .map(IntRange),
                 );