RN/MMM + SES: 20 Promise warnings

[leotm]

Follow-up to

• RN + SES: TypeError: undefined is not a function (near '...globalThis.process.on...') #11

As seen in

• [V8] RN 0.66.5 + SES 0.18.1: 31 warnings #14

---

 WARN  Removing intrinsics.Promise._B
 WARN  Removing intrinsics.Promise._C
 WARN  Removing intrinsics.Promise._D
 WARN  Removing intrinsics.Promise.resolve.prototype
 WARN  Tolerating undeletable intrinsics.Promise.resolve.prototype === undefined
 WARN  Removing intrinsics.Promise.all.prototype
 WARN  Tolerating undeletable intrinsics.Promise.all.prototype === undefined
 WARN  Removing intrinsics.Promise.allSettled.prototype
 WARN  Tolerating undeletable intrinsics.Promise.allSettled.prototype === undefined
 WARN  Removing intrinsics.Promise.reject.prototype
 WARN  Tolerating undeletable intrinsics.Promise.reject.prototype === undefined
 WARN  Removing intrinsics.Promise.race.prototype
 WARN  Tolerating undeletable intrinsics.Promise.race.prototype === undefined
 WARN  Removing intrinsics.%PromisePrototype%.then.prototype
 WARN  Tolerating undeletable intrinsics.%PromisePrototype%.then.prototype === undefined
 WARN  Removing intrinsics.%PromisePrototype%.done
 WARN  Removing intrinsics.%PromisePrototype%.finally.prototype
 WARN  Tolerating undeletable intrinsics.%PromisePrototype%.finally.prototype === undefined
 WARN  Removing intrinsics.%PromisePrototype%.catch.prototype
 WARN  Tolerating undeletable intrinsics.%PromisePrototype%.catch.prototype === undefined

Tolerable as we have a fully functioning RN app
These can be ignored via RN's internal LogBox

Or worst-case omit our RN Promise polyfill, then testing meta-maskmobile

Ideal result: Include RN Promise polyfill (or other) with 0 warnings

Not a blocker in RN, unless proves in metamask-mobile (i.e. fuller RN repo's)

First seen in

• MMM: RN 0.66.5 + SES 0.18.1

[leotm]

nb: from before

• React Native Incompatibility: failed to delete intrinsics.Promise.resolve.prototype (shim) endojs/endo#663
• Proof of Concept Insights - Removing the Promise Polyfill at RN #5

a Babel plugin looking most likely (least intrusive/patchy) to switcheroo (transform) back

but first the big why polyfill our Android/iOS JSC/V8 global Promise in the first place
and why is this polyfill nonstandard to SES

[leotm]

nb

• 0.71: https://github.com/facebook/react-native/blob/0.71-stable/Libraries/Core/InitializeCore.js#L32
  • | RN Monorepo | Migrate to package facebook/react-native#36434 🚀
• 0.72: https://github.com/facebook/react-native/blob/0.72-stable/packages/react-native/Libraries/Core/InitializeCore.js#L33
  • /packages/react-native