made feature label specific and added test for into_iter of borrowed receiver

Author: rapha

src/libstd/sync/mpsc/mod.rs

@@ -309,7 +309,7 @@ pub struct Iter<'a, T: 'a> {
 /// An owning iterator over messages on a receiver, this iterator will block
 /// whenever `next` is called, waiting for a new message, and `None` will be
 /// returned when the corresponding channel has hung up.
-#[stable(feature = "rust1_1", since = "1.1.0")]
+#[stable(feature = "receiver_into_iter", since = "1.1.0")]
 pub struct IntoIter<T> {
     rx: Receiver<T>
 }
@@ -907,7 +907,7 @@ impl<'a, T> Iterator for Iter<'a, T> {
     fn next(&mut self) -> Option<T> { self.rx.recv().ok() }
 }
 
-#[stable(feature = "rust1_1", since = "1.1.0")]
+#[stable(feature = "receiver_into_iter", since = "1.1.0")]
 impl<'a, T> IntoIterator for &'a Receiver<T> {
     type Item = T;
     type IntoIter = Iter<'a, T>;
@@ -920,7 +920,7 @@ impl<T> Iterator for IntoIter<T> {
     fn next(&mut self) -> Option<T> { self.rx.recv().ok() }
 }
 
-#[stable(feature = "rust1_1", since = "1.1.0")]
+#[stable(feature = "receiver_into_iter", since = "1.1.0")]
 impl <T> IntoIterator for Receiver<T> {
     type Item = T;
     type IntoIter = IntoIter<T>;
@@ -1539,9 +1539,7 @@ mod test {
     }
 
     #[test]
-    fn test_recv_into_iter() {
-        use iter::IntoIterator;
-
+    fn test_recv_into_iter_owned() {
         let mut iter = {
           let (tx, rx) = channel::<i32>();
           tx.send(1).unwrap();
@@ -1554,6 +1552,17 @@ mod test {
         assert_eq!(iter.next().is_none(), true);
     }
 
+    #[test]
+    fn test_recv_into_iter_borrowed() {
+        let (tx, rx) = channel::<i32>();
+        tx.send(1).unwrap();
+        tx.send(2).unwrap();
+        let mut iter = (&rx).into_iter();
+        assert_eq!(iter.next().unwrap(), 1);
+        assert_eq!(iter.next().unwrap(), 2);
+        assert_eq!(iter.next().is_none(), true);
+    }
+
     #[test]
     fn try_recv_states() {
         let (tx1, rx1) = channel::<i32>();