[Codegen]: Refactor translate UniontypeAnnotation

[youedd]

Summary

Part of #34872

[Assigned to @youedd] This task is more advanced than the others Create a function to unify the unionType and the TSUnionType. This task may share some logic from the previous task. The function should accept a ParserType parameter to implement the proper logic to extract the memberType variable. Ideally, we should create a couple of supporting functions to implement those logics.

Changelog

[Internal] [Changed] - Refactor translate UniontypeAnnotation

Test Plan

yarn jest react-native-codegen

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,755,804	+691,008
android	hermes	armeabi-v7a	7,159,876	+691,001
android	hermes	x86	8,067,410	+691,018
android	hermes	x86_64	8,038,084	+691,024
android	jsc	arm64-v8a	9,614,020	+690,932
android	jsc	armeabi-v7a	8,379,963	+690,934
android	jsc	x86	9,560,826	+690,942
android	jsc	x86_64	10,153,749	+690,943

Base commit: c638822
Branch: main

[analysis-bot]

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

Base commit: c638822
Branch: main

[pull-bot]

PR build artifact for c80145462808486c2c03228951cd7e9b91ce260f 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 c80145462808486c2c03228951cd7e9b91ce260f 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.

[cipolleschi]

Thanks for doing this! I left a small comment to improve readability of the codebase.

[facebook-github-bot]

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

[pull-bot]

PR build artifact for aecec14dad9e909510437aaf8d77e254706992d3 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 aecec14dad9e909510437aaf8d77e254706992d3 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 bc1051d 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 bc1051d 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.