Update miri to rustc changes

1 files changed, 24 insertions, 0 deletions

diff --git a/src/libstd/sys/unix/os_str.rs b/src/libstd/sys/unix/os_str.rs
index 777db17e3e1..a27e76a0e3b 100644
--- a/src/libstd/sys/unix/os_str.rs
+++ b/src/libstd/sys/unix/os_str.rs
@@ -15,6 +15,8 @@ use borrow::Cow;
 use fmt;
 use str;
 use mem;
+use rc::Rc;
+use sync::Arc;
 use sys_common::{AsInner, IntoInner};
 use std_unicode::lossy::Utf8Lossy;
 
@@ -123,6 +125,16 @@ impl Buf {
         let inner: Box<[u8]> = unsafe { mem::transmute(boxed) };
         Buf { inner: inner.into_vec() }
     }
+
+    #[inline]
+    pub fn into_arc(&self) -> Arc<Slice> {
+        self.as_slice().into_arc()
+    }
+
+    #[inline]
+    pub fn into_rc(&self) -> Rc<Slice> {
+        self.as_slice().into_rc()
+    }
 }
 
 impl Slice {
@@ -156,4 +168,16 @@ impl Slice {
         let boxed: Box<[u8]> = Default::default();
         unsafe { mem::transmute(boxed) }
     }
+
+    #[inline]
+    pub fn into_arc(&self) -> Arc<Slice> {
+        let arc: Arc<[u8]> = Arc::from(&self.inner);
+        unsafe { Arc::from_raw(Arc::into_raw(arc) as *const Slice) }
+    }
+
+    #[inline]
+    pub fn into_rc(&self) -> Rc<Slice> {
+        let rc: Rc<[u8]> = Rc::from(&self.inner);
+        unsafe { Rc::from_raw(Rc::into_raw(rc) as *const Slice) }
+    }
 }