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`
* `DefaultHasher`
* `DefaultHasher::new`
* `DefaultHasher::default`

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

1 files changed, 4 insertions, 3 deletions

diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index d6a5efbd279..4d7b0434fd9 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -724,7 +724,8 @@ mod tests {
     use super::*;
     use os::raw::c_char;
     use borrow::Cow::{Borrowed, Owned};
-    use hash::{SipHasher, Hash, Hasher};
+    use hash::{Hash, Hasher};
+    use collections::hash_map::DefaultHasher;
 
     #[test]
     fn c_to_rust() {
@@ -806,10 +807,10 @@ mod tests {
         let ptr = data.as_ptr() as *const c_char;
         let cstr: &'static CStr = unsafe { CStr::from_ptr(ptr) };
 
-        let mut s = SipHasher::new_with_keys(0, 0);
+        let mut s = DefaultHasher::new();
         cstr.hash(&mut s);
         let cstr_hash = s.finish();
-        let mut s = SipHasher::new_with_keys(0, 0);
+        let mut s = DefaultHasher::new();
         CString::new(&data[..data.len() - 1]).unwrap().hash(&mut s);
         let cstring_hash = s.finish();