PTRI_SPLAY_LINKS
TriRealSuccessor(
  IN  PTRI_SPLAY_LINKS Links
  );

Routine Description:

    This RealSuccess function takes as input a pointer to a splay link in a
    tree and returns a pointer to the successor of the input node within the
    entire tire.  If there is not a successor, the return value is NULL.

Arguments:

    Links - Supplies the pointer to a splay link in a tree

Return Values:

    PRTI_SPLAY_LINKS - Returns a pointer to the successor in the entire tree