anchor.diff:              IntSet (PatriciaSet.OfList source)
   
       /// Returns a new IntSet made from the given elements.
  -    static member OfArray (source : int[]) : IntSet =
  +    static member internal OfArray (source : int[]) : IntSet =
           // Preconditions
           checkNonNull "source" source
   
  
positive.code:         elif otherSet.Trie === trie' then otherSet
          else IntSet (trie')
  
      /// Determines if the given set is a subset of this set.
      member this.IsSubset (otherSet : IntSet) : bool =
          PatriciaSet.IsSubset (otherSet.Trie, trie)
  
negative.code:         PatriciaSet.IsProperSuperset (otherSet.Trie, trie)
  
      /// Returns a new IntSet made from the given elements.
      static member internal OfSeq (source : seq<int>) : IntSet =
          // Preconditions
          checkNonNull "source" source
  
          IntSet (PatriciaSet.OfSeq source)
  
      /// Returns a new IntSet made from the given elements.
      static member internal OfList (source : int list) : IntSet =
          // Preconditions
          checkNonNull "source" source
  
  