Fix bug #1919

[wojtekmaj]

Added a warning when an array of PropTypes was supplied to as an argument to oneOf checker.

All PropType checkers now have a flag isReactTypeChecker that enables us to easily identify them later on.

[wojtekmaj]

I wanted to increase test coverage, but got a bunch of such errors...

FAIL  src\renderers\shared\fiber\__tests__\ReactCoroutine-test.js
  ● Test suite failed to run

    SyntaxError: Invalid regular expression: /\__tests__\/: \ at end of pattern
        at RegExp (native)

      at new Runtime (node_modules\jest-runtime\build\index.js:111:23)
      at handle (node_modules\worker-farm\lib\child\index.js:41:8)
      at process.<anonymous> (node_modules\worker-farm\lib\child\index.js:47:3)
      at emitTwo (events.js:106:13)
      at process.emit (events.js:191:7)
      at process.nextTick (internal\child_process.js:744:12)
      at _combinedTickCallback (internal\process\next_tick.js:67:7)


Test Summary
 › Ran all tests.
 › 124 test suites failed, 0 tests passed (0 total in 124 test suites, run time 5.274s)

What can I do with it...?

[aweary]

Thanks for the PR @wojtekmaj. We actually already have a pending PR for this #8274

[wojtekmaj]

Hey, but THIS is #8274 ;) You probably meant #7526. Well, I hope it can be of some help though! It seem like my idea is a little simpler (whether it's better, I'm not the one to decide).

[aweary]

Haha, sorry about that, had the wrong link in my clipboard 😄 #7526 is indeed what I meant.

Well, I hope it can be of some help though! It seem like my idea is a little simpler (whether it's better, I'm not the one to decide).

Help is always welcome! Typically I like to treat it as first-come-first-serve, so people who make the effort first get a fair chance to get their contribution merged. @gaearon looks to have done some initial review of another related PR (#6940) so I'll defer to him.

[aweary]

PropTypes have been removed from React core and now exist as a separate package prop-types. Any future feature requests, bug reports, or changes should be directed to the new repo at https://github.com/reactjs/prop-types.

Sorry about that @wojtekmaj!