Node (melange.Node_child

type node_exports;

type node_module =
  Js.t({. id: string
    , exports: node_exports
    , parrent: Js.null_undefined(node_module)
    , filename: string
    , loaded: bool
    , children: array(node_module)
    , paths: array(string)});

type node_require =
  Js.t({. main: Js.undefined(node_module)
    , resolve: Js.Fn.arity1((string => string))});

type string_buffer;

type buffer;

type string_buffer_kind(_) =

| String : string_buffer_kind(string)
| Buffer : string_buffer_kind(buffer)

;

let test: string_buffer => (string_buffer_kind('t), 't0);

We expect a good inliner will eliminate such boxing in the future