anchor.diff:          4, [23, 25]]
   
   [<Test>]
  -let ``should find usages of operator >>= which starts with '>' symbol``() =
  +let ``should find usages of operator >>= containing '>' symbol``() =
       ("""
   let (>>=) x y = ()
       1 >>= 2
  
positive.code:         3, [6, 9]]
  
  [<Test>]
  let ``should find usages of operator >~>> which starts with '>' symbol``() =
      ("""
  let (>~>>) x y = ()
  1 >~>> 2
  
negative.code:         |> Option.getOrElse [||]
          |> Array.toList
          |> List.groupBy (fun su -> su.RangeAlternate.StartLine)
          |> List.map (fun (line, sus) ->
              line, 
              sus 
              |> List.map (fun su -> su.RangeAlternate.StartColumn, su.RangeAlternate.EndColumn)
  