Auto merge of #86879 - YohDeadfall:stabilize-vec-shrink-to, r=dtolnay

Stabilize Vec<T>::shrink_to

This PR stabilizes `shrink_to` feature and closes the corresponding issue. The second point was addressed already, and no `panic!` should occur.

Closes #56431.

1 files changed, 1 insertions, 2 deletions

diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs
index c54c91509d4..e14ebd869a3 100644
--- a/library/alloc/src/vec/mod.rs
+++ b/library/alloc/src/vec/mod.rs
@@ -947,7 +947,6 @@ impl<T, A: Allocator> Vec<T, A> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(shrink_to)]
     /// let mut vec = Vec::with_capacity(10);
     /// vec.extend([1, 2, 3]);
     /// assert_eq!(vec.capacity(), 10);
@@ -957,7 +956,7 @@ impl<T, A: Allocator> Vec<T, A> {
     /// assert!(vec.capacity() >= 3);
     /// ```
     #[cfg(not(no_global_oom_handling))]
-    #[unstable(feature = "shrink_to", reason = "new API", issue = "56431")]
+    #[stable(feature = "shrink_to", since = "1.56.0")]
     pub fn shrink_to(&mut self, min_capacity: usize) {
         if self.capacity() > min_capacity {
             self.buf.shrink_to_fit(cmp::max(self.len, min_capacity));