Attempted to assign to readonly property with external package

[titivermeesch]

What version of Bun is running?

1.0.24+6fa35839c

What platform is your computer?

Darwin 23.2.0 arm64 arm

What steps can reproduce the bug?

1. Start a clean Bun project
2. Setup the following code (including installing Ably package through npm)

import Ably from "ably";
const ably = new Ably.Rest({ key: "key:key" });
ably.auth.requestToken({}, (err, res) => {
  console.log(err, res);
});

What is the expected behavior?

The code should complain about wrong authentication or correctly process the request

What do you see instead?

15:08:38.596 Ably: Auth.requestToken(): token request API call returned error; err = RequestError: Attempted to assign to readonly property.
ABLY FAILED
1122 | var Utils = tslib_1.__importStar(__webpack_require__(2));
1123 | function toString(err) {
1124 |     var result = '[' + err.constructor.name;
1125 |     if (err.message)
1126 |         result += ': ' + err.message;
1127 |     if (err.statusCode)
                   ^
error: RequestError: Attempted to assign to readonly property.

Additional information

I set up a reproduction repo here: https://github.com/titivermeesch/bun-ably-error-reproduction The script npm run run-bun fails, but when using npm run run-node it works as expected. The first one uses bun and the second one uses Node v20.11.0)

[Electroid]

Possibly related to #8258

[jdalton]

Related ably code: https://github.com/ably/ably-js/blob/3336b660407479ccec671da0601775309dc4cfd1/src/common/lib/types/errorinfo.ts#L13

Issue in Bun only having a getter: https://github.com/oven-sh/bun/issues/3150#issuecomment-1698134905 Related PR fix: https://github.com/oven-sh/bun/pull/8368