public HashSet <Struct> GetStructTypesUsingStructType(Struct structInfo)
 {
     result.Set(structInfo);
     foreach (var otherStruct in structCache.GetUsedBy(structInfo))
     {
         if (!result.Contains(otherStruct))
         {
             GetStructTypesUsingStructType(otherStruct);
         }
     }
     return(result);
 }