Fix failing flow tests
Fix failing flow tests

Summary:
Metro Bundler ships with `react_native_fb` flow annotations whereas our repo is set to ignore `react_native_oss` flow issues.

For now, a hot fix is to make our repo ignore both.

Detailed discussion happens here: https://github.com/facebook/metro-bundler/commit/87cfc05ea67e19c367e24e644915b49024ce3f2a#commitcomment-24884835

Those changes have been applied to `0.50.0-rc.0` in order to make it green.
Closes https://github.com/facebook/react-native/pull/16310

Differential Revision: D6031378

Pulled By: hramos

fbshipit-source-id: 491d866bb35bd6c30a27dbc04586b15144a8efb2

ptmt/react-native-macos,cdlewis/react-native,hammerandchisel/react-native,rickbeerendonk/react-native,Bhullnatik/react-native,facebook/react-native,javache/react-native,kesha-antonov/react-native,pandiaraj44/react-native,hoangpham95/react-native,hammerandchisel/react-native,kesha-antonov/react-native,pandiaraj44/react-native,myntra/react-native,ptmt/react-native-macos,kesha-antonov/react-native,Bhullnatik/react-native,pandiaraj44/react-native,ptmt/react-native-macos,hammerandchisel/react-native,rickbeerendonk/react-native,dikaiosune/react-native,hoangpham95/react-native,hoangpham95/react-native,hoastoolshop/react-native,hammerandchisel/react-native,exponentjs/react-native,javache/react-native,myntra/react-native,cdlewis/react-native,facebook/react-native,arthuralee/react-native,javache/react-native,jevakallio/react-native,arthuralee/react-native,javache/react-native,pandiaraj44/react-native,myntra/react-native,hoastoolshop/react-native,hoastoolshop/react-native,janicduplessis/react-native,exponentjs/react-native,javache/react-native,cdlewis/react-native,myntra/react-native,rickbeerendonk/react-native,Bhullnatik/react-native,hammerandchisel/react-native,hoangpham95/react-native,pandiaraj44/react-native,facebook/react-native,cdlewis/react-native,kesha-antonov/react-native,exponent/react-native,arthuralee/react-native,Bhullnatik/react-native,hammerandchisel/react-native,dikaiosune/react-native,ptmt/react-native-macos,ptmt/react-native-macos,rickbeerendonk/react-native,exponentjs/react-native,hoastoolshop/react-native,cdlewis/react-native,pandiaraj44/react-native,exponentjs/react-native,javache/react-native,exponentjs/react-native,myntra/react-native,hammerandchisel/react-native,hoastoolshop/react-native,facebook/react-native,exponent/react-native,janicduplessis/react-native,rickbeerendonk/react-native,jevakallio/react-native,facebook/react-native,rickbeerendonk/react-native,javache/react-native,exponentjs/react-native,exponent/react-native,exponentjs/react-native,Bhullnatik/react-native,dikaiosune/react-native,ptmt/react-native-macos,cdlewis/react-native,ptmt/react-native-macos,dikaiosune/react-native,jevakallio/react-native,exponent/react-native,kesha-antonov/react-native,ptmt/react-native-macos,kesha-antonov/react-native,facebook/react-native,hoangpham95/react-native,rickbeerendonk/react-native,pandiaraj44/react-native,javache/react-native,pandiaraj44/react-native,hoastoolshop/react-native,cdlewis/react-native,janicduplessis/react-native,kesha-antonov/react-native,rickbeerendonk/react-native,myntra/react-native,hammerandchisel/react-native,jevakallio/react-native,jevakallio/react-native,dikaiosune/react-native,hoangpham95/react-native,dikaiosune/react-native,facebook/react-native,Bhullnatik/react-native,dikaiosune/react-native,dikaiosune/react-native,cdlewis/react-native,jevakallio/react-native,janicduplessis/react-native,jevakallio/react-native,janicduplessis/react-native,exponent/react-native,arthuralee/react-native,myntra/react-native,exponent/react-native,cdlewis/react-native,kesha-antonov/react-native,arthuralee/react-native,exponent/react-native,kesha-antonov/react-native,jevakallio/react-native,javache/react-native,facebook/react-native,hoangpham95/react-native,jevakallio/react-native,myntra/react-native,hoangpham95/react-native,hoastoolshop/react-native,hoastoolshop/react-native,janicduplessis/react-native,facebook/react-native,exponentjs/react-native,myntra/react-native,janicduplessis/react-native,janicduplessis/react-native,Bhullnatik/react-native,rickbeerendonk/react-native,Bhullnatik/react-native,exponent/react-native