Rollup merge of rust-lang#90897 - jhpratt:fix-incorrect-feature-flags…

…, r=dtolnay Fix incorrect stability attributes These two instances were caught in rust-lang#90356, but that PR isn't going to be merged. I've extracted these to ensure it's still correct. ``@rustbot`` label: +A-stability +C-cleanup +S-waiting-on-review
matthiaskrgr · Dec 10, 2021 · 616f9ef · 616f9ef
2 parents 71c1d56 + 5907a8c
commit 616f9ef
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diff --git a/library/core/src/num/saturating.rs b/library/core/src/num/saturating.rs
@@ -628,7 +628,7 @@ macro_rules! saturating_int_impl {
             /// ```
             #[inline]
             #[unstable(feature = "saturating_int_impl", issue = "87920")]
-            #[rustc_const_stable(feature = "const_reverse_bits", since = "1.37.0")]
+            #[rustc_const_unstable(feature = "saturating_int_impl", issue = "87920")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn reverse_bits(self) -> Self {

diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs
@@ -2223,7 +2223,7 @@ macro_rules! uint_impl {
         /// ```
         #[unstable(feature = "wrapping_next_power_of_two", issue = "32463",
                    reason = "needs decision on wrapping behaviour")]
-        #[rustc_const_stable(feature = "const_int_pow", since = "1.50.0")]
+        #[rustc_const_unstable(feature = "wrapping_next_power_of_two", issue = "32463")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         pub const fn wrapping_next_power_of_two(self) -> Self {