UnbalanceDurationRelative: CreateDateDurationRecord is fallible

[anba]

https://tc39.es/proposal-temporal/#sec-temporal-unbalancedurationrelative

12. Return ! CreateDateDurationRecord(years, months, weeks, days).

This step is fallible.

Test case:

var duration = Temporal.Duration.from({
  years: 1,
  months: 0,
  weeks: 1,
});

var cal = new class extends Temporal.Calendar {
  dateUntil(one, two, options) {
    var result = super.dateUntil(one, two, options);
    return result.negated();
  }
}("iso8601");

var relativeTo = new Temporal.PlainDateTime(1970, 1, 1, 0, 0, 0, 0, 0, 0, cal);
assertEq(relativeTo.calendar, cal);

assertThrowsInstanceOf(() => {
  duration.round({
    smallestUnit: "days",
    largestUnit: "month",
    relativeTo,
  });
}, RangeError);