Fixed a compiler warning in the Splay Tree.
Fixed a compiler warning in the Splay Tree.

hnafar/IronJS,fholm/IronJS,fholm/IronJS,hnafar/IronJS,hnafar/IronJS,xamarin/IronJS,hnafar/IronJS,hnafar/IronJS,fholm/IronJS,xamarin/IronJS,xamarin/IronJS,fholm/IronJS,xamarin/IronJS