message: Remove erroneous cast.
diff: @@ -585,7 +585,7 @@ class ElementsAttrBase<Pred condition, string description> :
  Attr<condition, description> {
  let storageType = [{ ElementsAttr }];
  let returnType = [{ ElementsAttr }];
  - let convertFromStorage = "cast<ElementsAttr>($_self)";
  + let convertFromStorage = "$_self";
  }
  def ElementsAttr: ElementsAttrBase<CPred<"$_self.isa<ElementsAttr>()">,
  