anchor.diff:              let dirs = FSharpEnvironment.getDefaultDirectories (None, FSharpTargetFramework.NET_4_5 )
               {opts with OtherOptions = [| yield! opts.OtherOptions
                                            match FSharpEnvironment.resolveAssembly dirs "FSharp.Core" with
  -                                         | Some fn -> yield sprintf "-r:%s" fn
  +                                         | Some fn -> yield String.Format ("-r:{0}", fn)
                                            | None -> Debug.WriteLine("LanguageService: Resolution: FSharp.Core assembly resolution failed!")
                                            match FSharpEnvironment.resolveAssembly dirs "FSharp.Compiler.Interactive.Settings" with
  -                                         | Some fn -> yield sprintf "-r:%s" fn
  +                                         | Some fn -> yield String.Format ("-r:{0}", fn)
                                            | None -> Debug.WriteLine("LanguageService: Resolution: FSharp.Compiler.Interactive.Settings assembly resolution failed!") |]}
           with e -> failwithf "Exception when getting check options for '%s'\n.Details: %A" fileName e
   
  
positive.code:   member x.GetProjectCheckerOptions(projFilename, ?properties) =
      let properties = defaultArg properties ["Configuration", "Debug"]
      let key = (projFilename, properties)
      match (!projectInfoCache).TryFind (key) with
             | Some entry, cache ->
                 Debug.WriteLine ("LanguageService: GetProjectCheckerOptions: Getting ProjectOptions from cache for {0}", projFilename)
                 projectInfoCache := cache
                 entry
             | None, cache ->
                 lock projectInfoCache (fun () ->
                 Debug.WriteLine ("LanguageService: GetProjectCheckerOptions: Generating ProjectOptions for {0}", Path.GetFileName(projFilename))
                 let opts = checker.GetProjectOptionsFromProjectFile(projFilename, properties)
                 projectInfoCache := cache.Add (key, opts)
                 opts)
  
      // Print contents of check option for debugging purposes
      // Debug.WriteLine(sprintf "GetProjectCheckerOptions: ProjectFileName: %s, ProjectFileNames: %A, ProjectOptions: %A, IsIncompleteTypeCheckEnvironment: %A, UseScriptResolutionRules: %A" 
  
negative.code:   /// Get all the uses of a symbol in the given file (using 'source' as the source for the file)
    member x.GetUsesOfSymbolAtLocationInFile(projectFilename, fileName, source, line:int, col, lineStr) =
     asyncMaybe {
       Debug.WriteLine("LanguageService: GetUsesOfSymbolAtLocationInFile: fileName={0}, line = {1}, col = {2}", fileName, line, col)
       let! colu, identIsland = Parsing.findLongIdents(col, lineStr) |> async.Return
       let! results = x.GetTypedParseResultWithTimeout(projectFilename, fileName, source, stale= AllowStaleResults.MatchingSource)
       let! symbolUse = results.GetSymbolAtLocation(line, colu, lineStr)
  