auto merge of #6223 : alexcrichton/rust/issue-6183, r=pcwalton

Closes #6183.

The first commit changes the compiler's method of treating a `for` loop, and all the remaining commits are just dealing with the fallout.

The biggest fallout was the `IterBytes` trait, although it's really a whole lot nicer now because all of the `iter_bytes_XX` methods are just and-ed together. Sadly there was a huge amount of stuff that's `cfg(stage0)` gated, but whoever lands the next snapshot is going to have a lot of fun deleting all this code!

1 files changed, 7 insertions, 0 deletions

diff --git a/src/libstd/priority_queue.rs b/src/libstd/priority_queue.rs
index b2f8c9c3c4e..bdb93142472 100644
--- a/src/libstd/priority_queue.rs
+++ b/src/libstd/priority_queue.rs
@@ -28,7 +28,14 @@ impl<T:Ord> BaseIter<T> for PriorityQueue<T> {
     /// Visit all values in the underlying vector.
     ///
     /// The values are **not** visited in order.
+    #[cfg(stage0)]
     fn each(&self, f: &fn(&T) -> bool) { self.data.each(f) }
+    /// Visit all values in the underlying vector.
+    ///
+    /// The values are **not** visited in order.
+    #[cfg(not(stage0))]
+    fn each(&self, f: &fn(&T) -> bool) -> bool { self.data.each(f) }
+
     fn size_hint(&self) -> Option<uint> { self.data.size_hint() }
 }