Auto merge of #36815 - alexcrichton:stabilize-1.13, r=aturon

std: Stabilize and deprecate APIs for 1.13

This commit is intended to be backported to the 1.13 branch, and works with the
following APIs:

Stabilized

* `i32::checked_abs`
* `i32::wrapping_abs`
* `i32::overflowing_abs`
* `RefCell::try_borrow`
* `RefCell::try_borrow_mut`

Deprecated

* `BinaryHeap::push_pop`
* `BinaryHeap::replace`
* `SipHash13`
* `SipHash24`
* `SipHasher` - use `DefaultHasher` instead in the `std::collections::hash_map`
  module

Closes #28147
Closes #34767
Closes #35057
Closes #35070

src/libstd/path.rs

@@ -3387,10 +3387,11 @@ mod tests {
 
     #[test]
     pub fn test_compare() {
-        use hash::{Hash, Hasher, SipHasher};
+        use hash::{Hash, Hasher};
+        use collections::hash_map::DefaultHasher;
 
         fn hash<T: Hash>(t: T) -> u64 {
-            let mut s = SipHasher::new_with_keys(0, 0);
+            let mut s = DefaultHasher::new();
             t.hash(&mut s);
             s.finish()
         }