chore: Add getKeyName function to codegen Parser class

[gabrieldonadel]

Summary

This PR adds a getKeyName function to the codegen Parser class and implements it in the Flow and TypeScript parsers as requested on #34872.

Changelog

[Internal] [Added] - Add getKeyName function to codegen Parser class

Test Plan

Run yarn jest react-native-codegen and ensure CI is green

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,070,038	+0
android	hermes	armeabi-v7a	6,442,174	+0
android	hermes	x86	7,485,033	+0
android	hermes	x86_64	7,344,612	+0
android	jsc	arm64-v8a	8,934,550	+0
android	jsc	armeabi-v7a	7,668,661	+0
android	jsc	x86	8,994,599	+0
android	jsc	x86_64	9,473,532	+0

Base commit: 5744b21
Branch: main

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: bbb3a61
Branch: main

[pull-bot]

PR build artifact for b8c9470 is ready.
To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[facebook-github-bot]

@jacdebug has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[cipolleschi]

Amazing work, thank you for doing this! 👏

What do you think about adding a unit test for the TypeScript parser and for the Flow parser?

Now that we have some small nice functions in the Parsers, it would be nice to test them!

[gabrieldonadel]

What do you think about adding a unit test for the TypeScript parser and for the Flow parser?

Sure @cipolleschi, that sounds like a great idea, I've just pushed a commit adding some unit tests for both Parsers.

[pull-bot]

PR build artifact for a9d875fa39d128daa9573e48e5f0848ede0a89d6 is ready.
To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[pull-bot]

PR build artifact for a85d874873b6f54d785ea4f26636b997ff2f3320 is ready.
To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[pull-bot]

PR build artifact for 518ef9ad244eed7671fd28f65e37a774fe9e911a is ready.
To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[pull-bot]

PR build artifact for 68f987d is ready.
To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[gabrieldonadel]

Hi @cipolleschi everything should've been updated now, do you mind taking another look?

[facebook-github-bot]

@jacdebug has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.