0 400 400   // not folded
 1 400 400   
 2 400 401 + // first line in comment fold
 0 401 401 | // second . . .
 0 401 400 | // third . . .
 0 400 400   namespace Issue56
 1 400 400   
 0 400 400   open System
 1 400 400   
 0 400 400   module LineBasedFoldingCheck =
 2 400 401 +     open FSharp.Quotations
 0 401 400 |     open FSharp.Reflection
 1 400 400   
 0 400 400       () |> ignore
 1 400 400