chore(deps): update Node to v12

[eunjae-lee]

Summary

1. examples/react-native and examples/react-native-query-suggestions has been re-written. I couldn't update their dependencies correctly to make them work. So I created new projects from scratch by using expo, and I copied&pasted the same code we had there.

2. The only part I changed in the examples is, replacing ListView to FlatList. ListView is deprecated, so I had to do that.

3. Except for the examples, there isn't much. Let me know if something isn't clear.

And let me know if you wish me to tidyng up this PR by creating stacked PRs for those examples.

[algobot]

Deploy preview for react-instantsearch ready!

Built with commit 28d4380

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[eunjae-lee]

There was one part that caused many failing tests.
I haven't digged enough but, I guess it has something to do with the change of implementation of Array.sort().

nodejs/node#24294

[eunjae-lee]

I didn't manage to run react-native and react-native-query-suggestions examples with Node v12.
Many dependencies were outdated. After many trials, I just deleted the examples and re-created them with expo init <project-name> and copy&paste the contents into the new examples.
This way, we kind of lose the history in the examples, but there aren't much history to track, IMO.

Plus, I've replaced deprecated ListView usages in the examples with FlatList which is new.

This will close #2908

[eunjae-lee]

The only remaining part in this PR is to make test:integration work.
For some reason, it's failing.
So I checked out master branch on my computer and it still does not work.

Does someone, probably @yannickcr, know if there's any special config to run this locally on master branch?

Screenshots in progress...
(node:6193) UnhandledPromiseRejectionWarning: Error: net::ERR_EMPTY_RESPONSE at http://localhost:8080/iframe.html?id=integration-with-other-libraries--airbnb-rheostat
    at navigate (/Users/eunjaelee/workspace/react-instantsearch/node_modules/puppeteer/lib/FrameManager.js:120:37)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:189:7)
  -- ASYNC --
    at Frame.<anonymous> (/Users/eunjaelee/workspace/react-instantsearch/node_modules/puppeteer/lib/helper.js:111:15)
    at Page.goto (/Users/eunjaelee/workspace/react-instantsearch/node_modules/puppeteer/lib/Page.js:674:49)
    at Page.<anonymous> (/Users/eunjaelee/workspace/react-instantsearch/node_modules/puppeteer/lib/helper.js:112:23)
    at takeScreenshot (/Users/eunjaelee/workspace/react-instantsearch/integration/takeScreenshot.js:14:14)
    at /Users/eunjaelee/workspace/react-instantsearch/integration/runTest.js:46:11
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:189:7)
(node:6193) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:6193) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[Haroenv]

I haven’t tried the rn example yet

[Haroenv]

This no longer has -browsers. Expected?

[eunjae-lee]

From my trials, only the integration test requires -browser image.

[Haroenv]

Why did you need to make these changes?

[eunjae-lee]

Regarding that function, lots of tests failed. I searched for it and there has been a change in the implementation of Array.sort() in Node v11 (link).
And the previous implementation of sortIndexWidgetsFirst didn't consider the both widgets being index. After fixing them like this, all the tests passed.