Stabilize num_midpoint_signed feature

Author: Urgau

library/core/src/num/mod.rs

@@ -159,14 +159,14 @@ macro_rules! midpoint_impl {
         /// # Examples
         ///
         /// ```
-        /// #![feature(num_midpoint_signed)]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(4), 2);")]
         #[doc = concat!("assert_eq!((-1", stringify!($SelfT), ").midpoint(2), 0);")]
         #[doc = concat!("assert_eq!((-7", stringify!($SelfT), ").midpoint(0), -3);")]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(-7), -3);")]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(7), 3);")]
         /// ```
-        #[unstable(feature = "num_midpoint_signed", issue = "110840")]
+        #[stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")]
+        #[rustc_const_stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
@@ -211,14 +211,14 @@ macro_rules! midpoint_impl {
         /// # Examples
         ///
         /// ```
-        /// #![feature(num_midpoint_signed)]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(4), 2);")]
         #[doc = concat!("assert_eq!((-1", stringify!($SelfT), ").midpoint(2), 0);")]
         #[doc = concat!("assert_eq!((-7", stringify!($SelfT), ").midpoint(0), -3);")]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(-7), -3);")]
         #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(7), 3);")]
         /// ```
-        #[unstable(feature = "num_midpoint_signed", issue = "110840")]
+        #[stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")]
+        #[rustc_const_stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]

library/core/tests/lib.rs

@@ -61,7 +61,6 @@
 #![feature(maybe_uninit_write_slice)]
 #![feature(min_specialization)]
 #![feature(never_type)]
-#![feature(num_midpoint_signed)]
 #![feature(numfmt)]
 #![feature(pattern)]
 #![feature(pointer_is_aligned_to)]