Stabilize slice patterns without `..`

Merge `feature(advanced_slice_patterns)` into `feature(slice_patterns)`

2 files changed, 16 insertions, 47 deletions

diff --git a/src/doc/unstable-book/src/language-features/advanced-slice-patterns.md b/src/doc/unstable-book/src/language-features/advanced-slice-patterns.md
deleted file mode 100644
index e8256469b14..00000000000
--- a/src/doc/unstable-book/src/language-features/advanced-slice-patterns.md
+++ /dev/null
@@ -1,35 +0,0 @@
-# `advanced_slice_patterns`
-
-The tracking issue for this feature is: [#23121]
-
-[#23121]: https://github.com/rust-lang/rust/issues/23121
-
-See also [`slice_patterns`](language-features/slice-patterns.html).
-
-------------------------
-
-
-The `advanced_slice_patterns` gate lets you use `..` to indicate any number of
-elements inside a pattern matching a slice. This wildcard can only be used once
-for a given array. If there's an identifier before the `..`, the result of the
-slice will be bound to that name. For example:
-
-```rust
-#![feature(advanced_slice_patterns, slice_patterns)]
-
-fn is_symmetric(list: &[u32]) -> bool {
-    match list {
-        &[] | &[_] => true,
-        &[x, ref inside.., y] if x == y => is_symmetric(inside),
-        _ => false
-    }
-}
-
-fn main() {
-    let sym = &[0, 1, 4, 2, 4, 1, 0];
-    assert!(is_symmetric(sym));
-
-    let not_sym = &[0, 1, 7, 2, 4, 1, 0];
-    assert!(!is_symmetric(not_sym));
-}
-```
diff --git a/src/doc/unstable-book/src/language-features/slice-patterns.md b/src/doc/unstable-book/src/language-features/slice-patterns.md
index 69857297582..133174268ef 100644
--- a/src/doc/unstable-book/src/language-features/slice-patterns.md
+++ b/src/doc/unstable-book/src/language-features/slice-patterns.md
@@ -4,25 +4,29 @@ The tracking issue for this feature is: [#23121]
 
 [#23121]: https://github.com/rust-lang/rust/issues/23121
 
-See also
-[`advanced_slice_patterns`](language-features/advanced-slice-patterns.html).
-
 ------------------------
 
-
-If you want to match against a slice or array, you can use `&` with the
-`slice_patterns` feature:
+The `slice_patterns` feature gate lets you use `..` to indicate any number of
+elements inside a pattern matching a slice. This wildcard can only be used once
+for a given array. If there's an pattern before the `..`, the subslice will be
+matched against that pattern. For example:
 
 ```rust
 #![feature(slice_patterns)]
 
+fn is_symmetric(list: &[u32]) -> bool {
+    match list {
+        &[] | &[_] => true,
+        &[x, ref inside.., y] if x == y => is_symmetric(inside),
+        &[..] => false,
+    }
+}
+
 fn main() {
-    let v = vec!["match_this", "1"];
+    let sym = &[0, 1, 4, 2, 4, 1, 0];
+    assert!(is_symmetric(sym));
 
-    match &v[..] {
-        &["match_this", second] => println!("The second element is {}", second),
-        _ => {},
-    }
+    let not_sym = &[0, 1, 7, 2, 4, 1, 0];
+    assert!(!is_symmetric(not_sym));
 }
 ```
-