[Codegen] extract emitDouble from parsers modules to shared parsers-primitives

[AntoineDoubovetzky]

Summary

Part of #34872

This PR extracts the content of the case 'Double' (Flow, TypeScript) into a single emitDouble function in the parsers-primitives.js file. Use the new function in the parsers.

Changelog

[Internal] [Changed] - Extract contents of the case 'Double' into a single emitDouble function inside parsers-primitives

Test Plan

I tested using jest and flow commands.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,747,611	+0
android	hermes	armeabi-v7a	7,149,395	+0
android	hermes	x86	8,058,588	+0
android	hermes	x86_64	8,029,524	+0
android	jsc	arm64-v8a	9,608,518	+0
android	jsc	armeabi-v7a	8,373,768	+0
android	jsc	x86	9,555,784	+0
android	jsc	x86_64	10,148,324	+0

Base commit: 54fc62c
Branch: main

[analysis-bot]

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

Base commit: 54fc62c
Branch: main

[facebook-github-bot]

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

[AntoineDoubovetzky]

Rebased the branch because of conflicts

[react-native-bot]

This pull request was successfully merged by @AntoineDoubovetzky in 3ab7ef2.

^{When will my fix make it into a release? | Upcoming Releases}