[Bug] `fs` patch doesn't handle `{ bigint: true }`

• I’d be willing to implement a fix

Describe the bug

When running on Node 15.4.0, the following error can occur:

node:fs:1931
      const dev = BigIntPrototypeToString(stats.dev, 32);
                  ^

TypeError: BigInt.prototype.toString requires that 'this' be a BigInt
    at Number.toString (<anonymous>)
    at gotStat (node:fs:1931:19)

This started happening because of this commit: https://github.com/nodejs/node/blob/8d6c2f2ada79e52ec0b376769a7d94814945bd4f/lib/fs.js#L1931

The root cause is that the fake fs implementation doesn’t correctly handle the { bigint: true } option that the various fs.stat functions can take:

https://nodejs.org/api/fs.html#fs_class_fs_stats

To Reproduce

$ nvm install 15.4.0
$ yarn init -2

update package.json to:
{
  "name": "bug",
  "scripts": {
    "start": "echo test",
    "bug": "yarn bug"
  }
}

$ yarn
$ yarn bug

➜ yarn bug
node:fs:1931
      const dev = BigIntPrototypeToString(stats.dev, 32);
                  ^

TypeError: BigInt.prototype.toString requires that 'this' be a BigInt
    at Number.toString (<anonymous>)
    at gotStat (node:fs:1931:19)
    at /private/var/folders/j7/mjhkhz7x15z0nmt42b5k2x980000gn/T/tmp.K9NgZraS/.pnp.js:4516:13

Screenshots

If applicable, add screenshots to help explain your problem.

Environment if relevant (please complete the following information):

• OS: OSX
• Node version 15.4.0
• Yarn version 2.4.0

Additional context

https://discord.com/channels/226791405589233664/226793713722982400/786920513238073395

[andreialecu]

I can confirm that #2262 fixes it. It can be used via:

yarn set version from sources --branch 2262

Make sure to run yarn install afterwards.

[mfrederiksen]

Any chance of this getting ported into the 2.4 branch or will it only ship in 3.0?