Auto merge of #52616 - kennytm:rollup, r=kennytm

Rollup of 11 pull requests

Successful merges:

 - #51807 (Deprecation of str::slice_unchecked(_mut))
 - #52051 (mem::swap the obvious way for types smaller than the SIMD optimization's block size)
 - #52465 (Add CI test harness for `thumb*` targets. [IRR-2018-embedded])
 - #52507 (Reword when `_` couldn't be inferred)
 - #52508 (Document that Unique::empty() and NonNull::dangling() aren't sentinel values)
 - #52521 (Fix links in rustdoc book.)
 - #52581 (Avoid using `#[macro_export]` for documenting builtin macros)
 - #52582 (Typo)
 - #52587 (Add missing backtick in UniversalRegions doc comment)
 - #52594 (Run the error index tool against the sysroot libdir)
 - #52615 (Added new lines to .gitignore.)

1 files changed, 4 insertions, 4 deletions

diff --git a/src/liballoc/tests/str.rs b/src/liballoc/tests/str.rs
index 75306ac82df..6275c7bb112 100644
--- a/src/liballoc/tests/str.rs
+++ b/src/liballoc/tests/str.rs
@@ -177,9 +177,9 @@ fn test_join_for_different_lengths_with_long_separator() {
 
 #[test]
 fn test_unsafe_slice() {
-    assert_eq!("ab", unsafe {"abc".slice_unchecked(0, 2)});
-    assert_eq!("bc", unsafe {"abc".slice_unchecked(1, 3)});
-    assert_eq!("", unsafe {"abc".slice_unchecked(1, 1)});
+    assert_eq!("ab", unsafe {"abc".get_unchecked(0..2)});
+    assert_eq!("bc", unsafe {"abc".get_unchecked(1..3)});
+    assert_eq!("", unsafe {"abc".get_unchecked(1..1)});
     fn a_million_letter_a() -> String {
         let mut i = 0;
         let mut rs = String::new();
@@ -200,7 +200,7 @@ fn test_unsafe_slice() {
     }
     let letters = a_million_letter_a();
     assert_eq!(half_a_million_letter_a(),
-        unsafe { letters.slice_unchecked(0, 500000)});
+        unsafe { letters.get_unchecked(0..500000)});
 }
 
 #[test]