Add link to stable version of `needs_drop` intrinsic

diff --git a/src/libcore/intrinsics.rs b/src/libcore/intrinsics.rs
index 2d6b5b832c534f04bfb71debef29ee118d731e22..ddad67273dc77e8646bb9ac90d147834c9bda30b 100644 (file)
--- a/src/libcore/intrinsics.rs
+++ b/src/libcore/intrinsics.rs
@@ -925,6 +925,9 @@
     ///
     /// If the actual type neither requires drop glue nor implements
     /// `Copy`, then may return `true` or `false`.
+    ///
+    /// The stabilized version of this intrinsic is
+    /// [`std::mem::needs_drop`](../../std/mem/fn.needs_drop.html).
     pub fn needs_drop<T>() -> bool;
 
     /// Calculates the offset from a pointer.