anchor.diff:      let getEntityFieldsAsProps (com: IPythonCompiler) ctx (ent: Fable.Entity) =
           if ent.IsFSharpUnion then
               getUnionFieldsAsIdents com ctx ent
  -            |> Array.map identAsExpr
  +            |> Array.map (identAsExpr com ctx)
           else
               ent.FSharpFields
               |> Seq.map (fun field ->
  
positive.code:             stmts @ [ expr |> resolveExpr kind.Type returnStrategy ]
  
          | Fable.IdentExpr id ->
              [ identAsExpr id |> resolveExpr id.Type returnStrategy ]
  
          | Fable.Import({ Selector = selector; Path = path }, t, r) ->
              [ transformImport com ctx r selector path |> resolveExpr t returnStrategy ]
  
negative.code:     | Target of Identifier
  
  type Import =
    { Module: string
      LocalIdent: Identifier option
      Name: string option }
  
  type ITailCallOpportunity =
      abstract Label: string
  