Stabilization of impls and fallout from stabilization

src/liballoc/arc.rs

@@ -246,7 +246,7 @@ impl<T> BorrowFrom<Arc<T>> for T {
     }
 }
 
-#[experimental = "Deref is experimental."]
+#[stable]
 impl<T> Deref for Arc<T> {
     type Target = T;
 
@@ -290,7 +290,7 @@ impl<T: Send + Sync + Clone> Arc<T> {
 }
 
 #[unsafe_destructor]
-#[experimental = "waiting on stability of Drop"]
+#[stable]
 impl<T: Sync + Send> Drop for Arc<T> {
     /// Drops the `Arc<T>`.
     ///
@@ -418,7 +418,7 @@ impl<T: Sync + Send> Clone for Weak<T> {
 }
 
 #[unsafe_destructor]
-#[experimental = "Weak pointers may not belong in this module."]
+#[stable]
 impl<T: Sync + Send> Drop for Weak<T> {
     /// Drops the `Weak<T>`.
     ///

src/liballoc/boxed.rs

@@ -155,12 +155,14 @@ impl fmt::Show for Box<Any> {
     }
 }
 
+#[stable]
 impl<Sized? T> Deref for Box<T> {
     type Target = T;
 
     fn deref(&self) -> &T { &**self }
 }
 
+#[stable]
 impl<Sized? T> DerefMut for Box<T> {
     fn deref_mut(&mut self) -> &mut T { &mut **self }
 }

src/liballoc/rc.rs

@@ -354,7 +354,7 @@ impl<T> BorrowFrom<Rc<T>> for T {
     }
 }
 
-#[experimental = "Deref is experimental."]
+#[stable]
 impl<T> Deref for Rc<T> {
     type Target = T;
 
@@ -365,7 +365,7 @@ impl<T> Deref for Rc<T> {
 }
 
 #[unsafe_destructor]
-#[experimental = "Drop is experimental."]
+#[stable]
 impl<T> Drop for Rc<T> {
     /// Drops the `Rc<T>`.
     ///
@@ -656,7 +656,7 @@ impl<T> Weak<T> {
 }
 
 #[unsafe_destructor]
-#[experimental = "Weak pointers may not belong in this module."]
+#[stable]
 impl<T> Drop for Weak<T> {
     /// Drops the `Weak<T>`.
     ///