.flowconfig in 0.49.1 has a bug which prevents using flow

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

Environment: OS: macOS Sierra 10.12.6 Node: 8.0.0 Yarn: 1.1.0 npm: 5.0.3 Watchman: 4.9.0 Xcode: Xcode 9.0 Build version 9A235 Android Studio: 2.3 AI-162.4069837

Packages: (wanted => installed) react: 16.0.0-beta.5 => 16.0.0-beta.5 react-native: 0.49.1 => 0.49.1

Steps to Reproduce

checking the newly created project using flow 0.53.0 throws an error

1. yarn add flow-bin@0.53.0
2. run ./node_modules/.bin/flow

Expected Behavior

Showing no errors

I think one of suppress_comment in .flowconfig has a bug and unfortunately there is no simple way to debug it since it is regex and on top of that you need to escape it and it becomes full of nonsense. Is there any tools that we can use to do the conversion back and forth?

Actual Behavior

Error: node_modules/react-native/Libraries/Lists/ListView/ListViewDataSource.js:21
       v----------------------------------------------------------------------------
 21:   /* $FlowFixMe(>=0.53.0 site=react_native_fb) This comment suppresses an error
 22:    * found when Flow v0.53 was deployed. To see the error delete this comment
 23:    * and run Flow. */
        -----------------^ Error suppressing comment. Unused suppression

Error: node_modules/react-native/Libraries/Lists/ListView/ListViewDataSource.js:25
       v----------------------------------------------------------------------------
 25:   /* $FlowFixMe(>=0.53.0 site=react_native_fb) This comment suppresses an error
 26:    * found when Flow v0.53 was deployed. To see the error delete this comment
 27:    * and run Flow. */
        -----------------^ Error suppressing comment. Unused suppression

[ide]

Thanks for the heads up, will cherry pick and release 0.49.2 later tonight.

[ide]

Cherry-picked that commit into 0.49-stable and pushed 0.49.2 to CircleCI. If CI succeeds, it will publish 0.49.2 to npm. CircleCI build is here: https://circleci.com/gh/facebook/react-native/22180.