anchor.diff:          content.Contents.Add(compExt)
   
           let pd = doc.UpdateParseDocument()
  -        typeof<MonoDevelop.Ide.TypeSystem.TypeSystemService>?Unload(solution)
  +        typeSystemService?Unload(solution)
           doc, content
positive.code:         use solution = new MonoDevelop.Projects.Solution ()
          solution.AddConfiguration ("", true) |> ignore
          solution.DefaultSolutionFolder.AddItem (project)
          using ( new MonoDevelop.Core.ProgressMonitor ())
              (fun monitor -> 
                   let typeSystemService = typeof<MonoDevelop.Ide.TypeSystem.TypeSystemService>
                   typeSystemService?Load (solution, monitor) |> Async.AwaitTask)
  
          content.Project <- project
  
  
negative.code: open System.IO
  open System.Reflection
  open System.Globalization
  open System.Threading.Tasks
  open Microsoft.FSharp.Reflection
  
  module Reflection =   
  