Avoid curry for dispatch returned by useReducer

[Austaras]

I have following code

[@react.component]
let make = () => {
  let (_, dispatch) = React.useReducer((state, _) => state + 1, 0);
  <button onClick={_e => dispatch(1)}> {ReasonReact.string("+")} </button>;
};

which compiles to

function App(Props) {
  var match = React.useReducer((function (state, param) {
          return state + 1 | 0;
        }), 0);
  var dispatch = match[1];
  return React.createElement("button", {
              onClick: (function (_e) {
                  return Curry._1(dispatch, 1);
                })
            }, "+");
}

Curry for dispatch is not needed, can this be fixed or it's limited by something else?

[Austaras]

As my limited knowledge for bucklescript, maybe dispatch should be typed as ([@bs] 'action => unit)

[johnridesabike]

This PR would address this issue #529

[Austaras]

This PR would address this issue #529

cool, hope your pr will be merged soon

[johnridesabike]

#529 got messed up. It was merged by accident, but none of its code was actually added to the master branch. #551 re-opened it.