add implementation of Repr for ~[T]

src/libstd/unstable/raw.rs

@@ -57,6 +57,7 @@ impl<'a, T> Repr<Slice<T>> for &'a [T] {}
 impl<'a> Repr<Slice<u8>> for &'a str {}
 impl<T> Repr<*Box<T>> for @T {}
 impl<T> Repr<*Box<Vec<T>>> for @[T] {}
+impl<T> Repr<*Vec<T>> for ~[T] {}
 impl Repr<*String> for ~str {}
 impl Repr<*Box<String>> for @str {}
 

src/libstd/vec.rs

@@ -806,7 +806,7 @@ impl<T> Container for ~[T] {
     /// Returns the length of a vector
     #[inline]
     fn len(&self) -> uint {
-        self.repr().len
+        self.as_slice().len()
     }
 }