Change default transform profile to 'hermes-stable' #2

[retyui]

Summary:

Issue: #57174
Initially, this PR was created to fix an issue above: #57208

---

But after re-testing it on the latest React Native 0.87.x.
I found out that cli set unstable_transformProfile value to default (cli -> metro -> babel -> @rn/babel-preset)

function getTransformProfile(caller) {
  return caller?.unstable_transformProfile ?? 'hermes-stable';
                 ^^^ has a 'default' value (from CLI)
}

---

So, isHermesProfile is always false here:

react-native/packages/react-native-babel-preset/src/configs/main.js

Line 63 in 22cfb5c

const isHermesProfile =

and unnecessary babel plugins has applied

Changelog:

[GENERAL] [CHANGED] - Change default transform profile to 'hermes-stable'

Test Plan:

npx @react-native-community/cli init --pm yarn RN87
cd RN87
open node_modules/@react-native/babel-preset/src/configs/main.js
// add Logs to print (isHermesProfile, transformProfile) vars

// Run build 
./android/gradlew -p android assembleRelease
// Check logs (have to be `isHermesProfile: false, transformProfile: 'default')

// Apply fix
open node_modules/@react-native/community-cli-plugin/dist/commands/bundle/index.js
// Find a `--unstable-transform-profile` option
// And change `default: "default",` => `default: "hermes-stable",`
 
 
 // Run build again

[retyui]

@robhogan Since you reviewed a previous PR, this one might also be a good candidate for your review, if you have a chance. Thanks!

[retyui]

Will be great to merge it before 0.88.x release

[robhogan]

This LGTM but I'm not at Meta any more. @cortinico ?

[meta-codesync]

@cortinico has imported this pull request. If you are a Meta employee, you can view this in D119189290.

[meta-codesync]

@cortinico merged this pull request in 97bea46.

[retyui]

@cortinico thank you !