collections/vector-demo.cfa:95:1 error: Unique best alternative includes deleted identifier in Generated Cast of:
  Application of
    Deleted Expression
      Variable Expression: ?{}: static inline forall
        instance of type T (not function type)
        with assertions
        Variable Expression: ?=?: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
          instance of type T (not function type)
        ... returning
          instance of type T (not function type)

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning
            instance of type T (not function type)

        Variable Expression: ?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

        Variable Expression: ?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
          instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning nothing

        Variable Expression: ^?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

        function
      ... with parameters
        reference to instance of struct vector_permit with body
        ... with parameters
          instance of type T (not function type)

        reference to instance of struct vector_permit with body
        ... with parameters
          instance of type T (not function type)

      ... returning nothing

      ... with resolved type:
        forall
          instance of type T (not function type)
          with assertions
          Variable Expression: ?=?: pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning
            instance of type T (not function type)

          ... with resolved type:
            pointer to function
            ... with parameters
              reference to instance of type T (not function type)
              instance of type T (not function type)
            ... returning
              instance of type T (not function type)

          Variable Expression: ?{}: pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

          ... with resolved type:
            pointer to function
            ... with parameters
              reference to instance of type T (not function type)
            ... returning nothing

          Variable Expression: ?{}: pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning nothing

          ... with resolved type:
            pointer to function
            ... with parameters
              reference to instance of type T (not function type)
              instance of type T (not function type)
            ... returning nothing

          Variable Expression: ^?{}: pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

          ... with resolved type:
            pointer to function
            ... with parameters
              reference to instance of type T (not function type)
            ... returning nothing

          function
        ... with parameters
          reference to instance of struct vector_permit with body
          ... with parameters
            instance of type T (not function type)

          reference to instance of struct vector_permit with body
          ... with parameters
            instance of type T (not function type)

        ... returning nothing

      ... deleted by: ?{}: static inline forall
        instance of type T (not function type)
        with assertions
        Variable Expression: ?=?: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
          instance of type T (not function type)
        ... returning
          instance of type T (not function type)

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning
            instance of type T (not function type)

        Variable Expression: ?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

        Variable Expression: ?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
          instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
            instance of type T (not function type)
          ... returning nothing

        Variable Expression: ^?{}: pointer to function
        ... with parameters
          reference to instance of type T (not function type)
        ... returning nothing

        ... with resolved type:
          pointer to function
          ... with parameters
            reference to instance of type T (not function type)
          ... returning nothing

        function
      ... with parameters
        reference to instance of struct vector_permit with body
        ... with parameters
          instance of type T (not function type)

        reference to instance of struct vector_permit with body
        ... with parameters
          instance of type T (not function type)

      ... returning nothing

    ... to arguments
    Generated Cast of:
      Variable Expression: __tmp: instance of struct vector_permit with body
      ... with parameters
        float

      ... with resolved type:
        instance of struct vector_permit with body
        ... with parameters
          float

    ... to:
      reference to instance of struct vector_permit with body
      ... with parameters
        float

    ... with resolved type:
      reference to instance of struct vector_permit with body
      ... with parameters
        float

    Generated Cast of:
      Variable Expression: it: instance of struct vector_permit with body
      ... with parameters
        float

      ... with resolved type:
        instance of struct vector_permit with body
        ... with parameters
          float

    ... to:
      reference to instance of struct vector_permit with body
      ... with parameters
        float

    ... with resolved type:
      reference to instance of struct vector_permit with body
      ... with parameters
        float

  with inferred parameters 0:
    ?=?: function
    ... with parameters
      reference to float
      float
    ... returning
      float

    ?{}: function
    ... with parameters
      reference to float
    ... returning nothing

    ?{}: function
    ... with parameters
      reference to float
      float
    ... returning nothing

    ^?{}: function
    ... with parameters
      reference to float
    ... returning nothing


  ... with resolved type:
    void
... to: nothing
... with resolved type:
  void