javascript.{statements.for_await_of,builtins.Array.fromAsync} - data for closing sync iterables

What type of issue is this?

Missing compatibility data

What information was incorrect, unhelpful, or incomplete?

See https://github.com/mdn/content/issues/37038: in https://github.com/tc39/ecma262/pull/2600, the behavior of the following code has changed:

function* generatorWithRejectedPromises() {
  try {
    yield 0;
    yield 1;
    yield Promise.resolve(2);
    yield Promise.reject(new Error("failed"));
    yield 4;
    throw new Error("throws");
  } finally {
    console.log("called finally");
  }
}

(async () => {
  try {
    for await (const num of generatorWithRejectedPromises()) {
      console.log(num);
    }
  } catch (e) {
    console.log("caught", e);
  }
})();

After the PR, we now log called finally. This affects at least for await...of and Array.fromAsync.

What browsers does this problem apply to, if applicable?

No response

What did you expect to see?

Data for when this became supported. Chrome supported this quite early, and latest Firefox supports this as well.

Did you test this? If so, how?

Running the above code.

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

No response

Do you have anything more you want to share?

No response

MDN URL

No response

MDN metadata

No response

Start with the compatibility records for javascript.statements.for_await_of and javascript.builtins.Array.fromAsync, then compare browser support data with the behavior described in tc39/ecma262#2600 and the linked MDN issue. Done means the records include accurate support versions for closing synchronous iterables and the data passes the repository’s validation checks.