Rollup merge of rust-lang#145135 - Kivooeo:stabilize-duration_constructors_lite, r=ChrisDenton

Stabilize `duration_constructors_lite` feature

This closes [tracking issue](rust-lang#140881) and stabilises `Duration::from_hours` and `Duration::from_mins` while not touching a `duration_constructors` feature from the related [tracking issue (2)](rust-lang#120301)

Author: Zalathar

core/src/time.rs

@@ -373,15 +373,15 @@ impl Duration {
     /// # Examples
     ///
     /// ```
-    /// #![feature(duration_constructors_lite)]
     /// use std::time::Duration;
     ///
     /// let duration = Duration::from_hours(6);
     ///
     /// assert_eq!(6 * 60 * 60, duration.as_secs());
     /// assert_eq!(0, duration.subsec_nanos());
     /// ```
-    #[unstable(feature = "duration_constructors_lite", issue = "140881")]
+    #[stable(feature = "duration_constructors_lite", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "duration_constructors_lite", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_hours(hours: u64) -> Duration {
@@ -401,15 +401,15 @@ impl Duration {
     /// # Examples
     ///
     /// ```
-    /// #![feature(duration_constructors_lite)]
     /// use std::time::Duration;
     ///
     /// let duration = Duration::from_mins(10);
     ///
     /// assert_eq!(10 * 60, duration.as_secs());
     /// assert_eq!(0, duration.subsec_nanos());
     /// ```
-    #[unstable(feature = "duration_constructors_lite", issue = "140881")]
+    #[stable(feature = "duration_constructors_lite", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "duration_constructors_lite", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     #[inline]
     pub const fn from_mins(mins: u64) -> Duration {

coretests/tests/lib.rs

@@ -36,7 +36,6 @@
 #![feature(drop_guard)]
 #![feature(duration_constants)]
 #![feature(duration_constructors)]
-#![feature(duration_constructors_lite)]
 #![feature(error_generic_member_access)]
 #![feature(exact_div)]
 #![feature(exact_size_is_empty)]