jackpope edd8fbef41 [RTR] Add usage warning behind flag (#27903) ...

## Summary

Moving towards deprecation of ReactTestRenderer. Log a warning on each
render so we can remove the exports in a future major version.

We can enable this flag in web RTR without disrupting RN tests by
flipping the flag in
`packages/shared/forks/ReactFeatureFlags.test-renderer.js`

## How did you test this change?

`yarn test
packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.js`

DiffTrain build for [66c8346401](https://github.com/facebook/react/commit/66c8346401d271588e4c400921c5dab5478fc623)

2024-02-23 16:38:05 +00:00

..

babel-plugin-react-refresh

[Fresh] Update the list of built-in hooks (#27864)

2024-02-06 19:02:28 +00:00

facebook-www

[RTR] Add usage warning behind flag (#27903)

2024-02-23 16:38:05 +00:00