syntax: Don't use unstable fn to convert single element to a slice

diff --git a/src/libsyntax/util/small_vector.rs b/src/libsyntax/util/small_vector.rs
index 6b864d5294766fabffa4448c4440f997c32d6d22..153f9d4a26df155dd4773cb2a22ecdc4a32ae985 100644 (file)
--- a/src/libsyntax/util/small_vector.rs
+++ b/src/libsyntax/util/small_vector.rs
@@ -64,7 +64,10 @@ pub fn as_slice<'a>(&'a self) -> &'a [T] {
                 let result: &[T] = &[];
                 result
             }
-            One(ref v) => slice::ref_slice(v),
+            One(ref v) => {
+                // FIXME: Could be replaced with `slice::ref_slice(v)` when it is stable.
+                unsafe { slice::from_raw_parts(v, 1) }
+            }
             Many(ref vs) => vs
         }
     }