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_
<React.Suspense fallback={null}>
              <Suspender target={id} />
            </React.Suspense>
          </Contexts>,
        ),
      false,
    );
    expect(inspectedElement).toMatchSnapshot('2: updated state');
    done();
  });
  it('should not re-render a function with hooks if it did not update since it was last inspected', async done => {
    let targetRenderCount = 0;
    const Wrapper = ({children}) => children;
    const Target = React.memo(props => {
      targetRenderCount++;
      React.useState(0);
      return null;
    });
    const container = document.createElement('div');
    await utils.actAsync(() =>
      ReactDOM.render(
        <Wrapper>
          <Target a={1} b="abc" />
        </Wrapper>,
        container,
      ),
    );
    const id = ((store.getElementIDAtIndex(1): any): number);
    let inspectedElement = null;
    function Suspender({target}) {