Make impl<T: AsHandle> impl take ?Sized

Author: nbdd0121

library/std/src/os/windows/io/handle.rs

@@ -422,15 +422,15 @@ pub trait AsHandle {
 }
 
 #[stable(feature = "io_safety", since = "1.63.0")]
-impl<T: AsHandle> AsHandle for &T {
+impl<T: AsHandle + ?Sized> AsHandle for &T {
     #[inline]
     fn as_handle(&self) -> BorrowedHandle<'_> {
         T::as_handle(self)
     }
 }
 
 #[stable(feature = "io_safety", since = "1.63.0")]
-impl<T: AsHandle> AsHandle for &mut T {
+impl<T: AsHandle + ?Sized> AsHandle for &mut T {
     #[inline]
     fn as_handle(&self) -> BorrowedHandle<'_> {
         T::as_handle(self)
@@ -450,23 +450,23 @@ impl<T: AsHandle> AsHandle for &mut T {
 /// impl MyTrait for Box<File> {}
 /// # }
 /// ```
-impl<T: AsHandle> AsHandle for crate::sync::Arc<T> {
+impl<T: AsHandle + ?Sized> AsHandle for crate::sync::Arc<T> {
     #[inline]
     fn as_handle(&self) -> BorrowedHandle<'_> {
         (**self).as_handle()
     }
 }
 
 #[stable(feature = "as_windows_ptrs", since = "1.71.0")]
-impl<T: AsHandle> AsHandle for crate::rc::Rc<T> {
+impl<T: AsHandle + ?Sized> AsHandle for crate::rc::Rc<T> {
     #[inline]
     fn as_handle(&self) -> BorrowedHandle<'_> {
         (**self).as_handle()
     }
 }
 
 #[stable(feature = "as_windows_ptrs", since = "1.71.0")]
-impl<T: AsHandle> AsHandle for Box<T> {
+impl<T: AsHandle + ?Sized> AsHandle for Box<T> {
     #[inline]
     fn as_handle(&self) -> BorrowedHandle<'_> {
         (**self).as_handle()