fix visibility of private getters

Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>

Author: connortsui20

library/std/src/sync/nonpoison/mutex.rs

@@ -457,7 +457,8 @@ impl<T: ?Sized + fmt::Display> fmt::Display for MutexGuard<'_, T> {
     }
 }
 
-pub fn guard_lock<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a sys::Mutex {
+/// For use in [`nonpoison::condvar`](super::condvar).
+pub(super) fn guard_lock<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a sys::Mutex {
     &guard.lock.inner
 }
 

library/std/src/sync/poison/mutex.rs

@@ -757,11 +757,13 @@ impl<T: ?Sized + fmt::Display> fmt::Display for MutexGuard<'_, T> {
     }
 }
 
-pub fn guard_lock<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a sys::Mutex {
+/// For use in [`nonpoison::condvar`](super::condvar).
+pub(super) fn guard_lock<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a sys::Mutex {
     &guard.lock.inner
 }
 
-pub fn guard_poison<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a poison::Flag {
+/// For use in [`nonpoison::condvar`](super::condvar).
+pub(super) fn guard_poison<'a, T: ?Sized>(guard: &MutexGuard<'a, T>) -> &'a poison::Flag {
     &guard.lock.poison
 }