We create many `useDebugValue` helpers, loggers and so one now, so we can feel less pain.

What matter (**Updated**)
- previewing complex values brifely like chrome devtools does it for arrays, sets, maps, objects,,,

I [wrote related twit](https://twitter.com/mxtnr/status/1178271362890240001) recently with one of my DebugValue helpers. screenshot out here:
<img width="556" alt="Screenshot 2019-09-29 at 14 01 53" src="https://user-images.githubusercontent.com/6201068/66700775-5648bf80-ecfd-11e9-93fe-089d451bcffa.png">
_my named hooks currently require a `label` option unless react babel cannot transform name of variable automatically_
expect(errorSpy).toHaveBeenCalledTimes(1);
    expect(infoSpy).toHaveBeenCalledTimes(1);
    expect(logSpy).toHaveBeenCalledTimes(1);
    expect(warnSpy).toHaveBeenCalledTimes(1);
    done();
  });
  it('should support simple data types', async done => {
    const Example = () => null;
    const container = document.createElement('div');
    await utils.actAsync(() =>
      ReactDOM.render(
        <Example
          boolean_false={false}
          boolean_true={true}
          infinity={Infinity}
          integer_zero={0}
          integer_one={1}
          float={1.23}
          string="abc"
          string_empty=""
          nan={NaN}
          value_null={null}
          value_undefined={undefined}
        />,
        container,
      ),
    );
    const id = ((store.getElementIDAtIndex(0): any): number);
    let inspectedElement = null;
    function Suspender({target}) {