[General] [Fixed] Flow errors from YellowBox and BubblingEventHandler

[thymikee]

Summary

Fixes Flow errors that surfaced with 0.62.1 release.

Targeting 0.62-stable branch, because this is an effect of applying patches that were relying on prior changes:

• YellowBox is now removed from from master
• BubblingEventHandler was removed in 0676ebf which partially built on top of bd2b7d6, later reverted in 27a3248

cc @alloy @kelset

Changelog

[General] [Fixed] Flow errors from YellowBox and BubblingEventHandler

Test Plan

Flow check passes

[pull-bot]

	Warnings
⚠️	❔ Base Branch - The base branch for this PR is something other than master. Are you sure you want to merge these changes into a stable release? If you are interested in backporting updates to an older release, the suggested approach is to land those changes on master first and then cherry-pick the commits into the branch for that release. The Releases Guide has more information.

Generated by 🚫 dangerJS against a049130

[kelset]

hey Mike, thanks for the PR! Weird that this flow error wasn't picked up 🤔 It's probably because now the template is not flow-typed I'd guess

[thymikee]

This is unrelated to the template. The flow check failed when run from the root of the repo as well.

[alloy]

Makes sense, thanks 👍

Related; do we run flow check on CI?

[thymikee]

The analyze_code and test_js through run-ci-javascript-tests.js file both run flow check.

[alloy]

I was waiting to merge this so we could cherry-pick fixes in chronological order, but I realise now that it will be easier to fix merge conflicts when cherry-picking than on this PR; so merging now.