stream/iter: broadcast strict-backpressure overflow rejects with TypeError instead of RangeError

[trivikr]

Version

main

Platform

macOS 26.5.2

Subsystem

stream

What steps will reproduce the bug?

import { broadcast } from 'node:stream/iter';

const { writer } = broadcast({
  highWaterMark: 1,
  backpressure: 'strict',
});

await writer.write('one');
const pending = writer.write('two');

try {
  await writer.write('three');
} catch (error) {
  console.log(error.name);
  console.log(error instanceof RangeError);
}

writer.fail();
await pending.catch(() => {});

How often does it reproduce? Is there a required condition?

Always

What is the expected behavior? Why is that the expected behavior?

RangeError
true

As per §7.2.2, Writer.write(), step 7.3

If "strict": if the pending writes queue is at capacity, return a promise rejected with a RangeError.

What do you see instead?

TypeError
false

Additional information

No response