anchor.diff:  let command = 
       <@ 
           fun (range:_1D) (buf:array<_>) ->
  -         while buf.[0] < 5 do
  -             buf.[0] <- buf.[0] + 1
  +          while buf.[0] < 5 do
  +            buf.[0] <- buf.[0] + 1
       @>
   
   (**
  
positive.code: 
  (**
  [More examples.]()
  *)
negative.code: let command = 
      <@ 
          fun (range:_1D) (buf:array<_>) ->
              let mutable x = 1
              x <- x * 2
      @>
  
  (**
  Note, that scopes are supported. So, you can "rebind" any name and "F#-style" visibility will be emuleted in target code. For example, next code will be translated correctly.
  *)
  
  let command = 
  