Removed ty_type (previously used to represent *tydesc).

src/libstd/unstable/intrinsics.rs

@@ -160,6 +160,9 @@ pub trait TyVisitor {
     fn visit_trait(&mut self, name: &str) -> bool;
     fn visit_param(&mut self, i: uint) -> bool;
     fn visit_self(&mut self) -> bool;
+
+    // NOTE Remove after next snapshot.
+    #[cfg(stage0)]
     fn visit_type(&mut self) -> bool;
 }