Stabilize Vec(Deque)::resize_with

Closes rust-lang#41758

Author: scottmcm

src/liballoc/collections/vec_deque.rs

@@ -1897,8 +1897,6 @@ impl<T> VecDeque<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(vec_resize_with)]
-    ///
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();
@@ -1917,7 +1915,7 @@ impl<T> VecDeque<T> {
     /// buf.resize_with(5, || { state += 1; state });
     /// assert_eq!(buf, [5, 10, 101, 102, 103]);
     /// ```
-    #[unstable(feature = "vec_resize_with", issue = "41758")]
+    #[stable(feature = "vec_resize_with", since = "1.33.0")]
     pub fn resize_with(&mut self, new_len: usize, generator: impl FnMut()->T) {
         let len = self.len();
 

src/liballoc/vec.rs

@@ -1241,8 +1241,6 @@ impl<T> Vec<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(vec_resize_with)]
-    ///
     /// let mut vec = vec![1, 2, 3];
     /// vec.resize_with(5, Default::default);
     /// assert_eq!(vec, [1, 2, 3, 0, 0]);
@@ -1255,7 +1253,7 @@ impl<T> Vec<T> {
     ///
     /// [`resize`]: #method.resize
     /// [`Clone`]: ../../std/clone/trait.Clone.html
-    #[unstable(feature = "vec_resize_with", issue = "41758")]
+    #[stable(feature = "vec_resize_with", since = "1.33.0")]
     pub fn resize_with<F>(&mut self, new_len: usize, f: F)
         where F: FnMut() -> T
     {

src/librustc_data_structures/lib.rs

@@ -28,7 +28,6 @@
 #![feature(optin_builtin_traits)]
 #![feature(nll)]
 #![feature(allow_internal_unstable)]
-#![feature(vec_resize_with)]
 #![feature(hash_raw_entry)]
 #![feature(stmt_expr_attributes)]
 #![feature(core_intrinsics)]