Summary:
`AlertIOS` was deprecated and removed long ago (https://github.com/facebook/react-native/commit/e2bd7db732602b2c477fe040f2946bd8293df297) but there continues to be a test page with the name `AlertIOS` in RN-Tester. `AlertIOSExample.js` contains valid examples of how to use `Alert.prompt()` so it's worth keeping them around. Let's move those into `AlertExample.js` and remove `AlertIOSExample.js`. While we're here, let's do some extra fixes to the test page:
- Remove `showsIndividualExamples = true`. For whatever reason, I needed to remove this to show the examples properly...
- Convert all uses of `<TouchableHighlight>` with `<Pressable>`. The latter replaces the former, so I thought that made sense..
Some extra context:
In React Native macOS, we had forked `AlertIOS` into `AlertMacOS`, with a corresponding example page. This PR was made while working on removing those (https://github.com/microsoft/react-native-macos/pull/1548/).
## Changelog
[INTERNAL] [CHANGED] - Moved `Alert.prompt` examples into common rn-tester test page
Pull Request resolved: https://github.com/facebook/react-native/pull/35586
Test Plan:
Test page shows up fine on iOS .

Reviewed By: lunaleaps
Differential Revision: D41825889
Pulled By: NickGerleman
fbshipit-source-id: 82e4405b1f3a1ccb558b5a5038a90416e7a32c29
Summary:
React Native's TS definitions are currently mostly stored in one monolithic file. This change splits the definitions up to correspond to the source files they came from, and are placed next to the source files. I think this should help inform, and make it easy to update the TS declarations when touching the Flow file.
I noticed as part of the change that the typings have not yet removed many APIs that were removed from RN. This is bad, since it means using the removed/non-functional API doesn't cause typechecker errors. Locating typings next to source should prevent that from being able to happen.
The organization here means individual TS declarations can declare what will be in the RN entrypoint, which is a little confusing. Seems like a good potential next refactor, beyond the literal translation I did.
Changelog:
[General][Changed] - Place TS Declarations Alongside Source Files
Reviewed By: lunaleaps, rshest
Differential Revision: D39796598
fbshipit-source-id: b36366466fd1976bdd2d4c8f7a4104a33c457a07