anchor.diff:                  || memb.IsOverrideOrExplicitInterfaceImplementation
                   || memb.IsDispatchSlot ->
               match callee with
  -            | Some callee ->
  -                match args with
  -                | [Fable.Value Fable.UnitConstant] when memb.IsPropertyGetterMethod ->
  -                    get r typ callee memb.DisplayName
  -                | [arg] when memb.IsPropertySetterMethod ->
  -                    Fable.Set(callee, makeStrConst memb.DisplayName |> Fable.ExprSet, arg, r)
  -                | _ -> makeStrConst memb.DisplayName |> Some |> instanceCall r typ argInfo
  +            | Some callee -> callInstanceMember r typ callee argInfo memb
               | None -> "Unexpected static interface/override call" |> attachRange r |> failwith
           | _ ->
               if isModuleValueForCalls memb
  
positive.code:         Seq.zip genParams genArgs
  
      let callInstanceMember r typ callee (argInfo: Fable.ArgInfo) (memb: FSharpMemberOrFunctionOrValue) =
          match argInfo.Args with
          | [Fable.Value Fable.UnitConstant] when memb.IsPropertyGetterMethod ->
              get r typ callee memb.DisplayName
          | [arg] when memb.IsPropertySetterMethod ->
              Fable.Set(callee, makeStrConst memb.DisplayName |> Fable.ExprSet, arg, r)
          | _ -> makeStrConst memb.DisplayName |> Some |> instanceCall r typ argInfo
  
      let (|Replaced|_|) (com: IFableCompiler) ctx r typ argTypes genArgs (argInfo: Fable.ArgInfo)
              (memb: FSharpMemberOrFunctionOrValue, entity: FSharpEntity option) =
  
negative.code:             SignatureArgTypes = Some argTypes
              Spread = if hasSeqSpread memb then Fable.SeqSpread else Fable.NoSpread
              IsSiblingConstructorCall = false }
          match memb, Some memb.ApparentEnclosingEntity with
          | Imported r typ (Some argInfo) imported, _ -> imported
          | Emitted r typ (Some argInfo) emitted, _ -> emitted
          | Replaced com ctx r typ argTypes genArgs argInfo replaced -> replaced
  