LibJS: Make relativeTo required for AdjustRoundedDurationDays

This is an editorial change in the Temporal spec.

See: https://github.com/tc39/proposal-temporal/commit/48e0a15

Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp

@@ -1516,7 +1516,7 @@ ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(GlobalObject& glo
 {
     auto& vm = global_object.vm();
 
-    // 1. If relativeTo is not present; or Type(relativeTo) is not Object; or relativeTo does not have an [[InitializedTemporalZonedDateTime]] internal slot; or unit is one of "year", "month", "week", or "day"; or unit is "nanosecond" and increment is 1, then
+    // 1. If Type(relativeTo) is not Object; or relativeTo does not have an [[InitializedTemporalZonedDateTime]] internal slot; or unit is one of "year", "month", "week", or "day"; or unit is "nanosecond" and increment is 1, then
     if (relative_to_object == nullptr || !is<ZonedDateTime>(relative_to_object) || unit.is_one_of("year"sv, "month"sv, "week"sv, "day"sv) || (unit == "nanosecond"sv && increment == 1)) {
         // a. Return ! CreateDurationRecord(years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds).
         return create_duration_record(years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds);

Userland/Libraries/LibJS/Runtime/Temporal/Duration.h

@@ -157,7 +157,7 @@ ThrowCompletionOr<DurationRecord> add_duration(GlobalObject&, double years1, dou
 ThrowCompletionOr<MoveRelativeDateResult> move_relative_date(GlobalObject&, Object& calendar, PlainDate& relative_to, Duration& duration);
 ThrowCompletionOr<ZonedDateTime*> move_relative_zoned_date_time(GlobalObject&, ZonedDateTime&, double years, double months, double weeks, double days);
 ThrowCompletionOr<RoundedDuration> round_duration(GlobalObject&, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, u32 increment, StringView unit, StringView rounding_mode, Object* relative_to_object = nullptr);
-ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(GlobalObject& global_object, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, u32 increment, StringView unit, StringView rounding_mode, Object* relative_to_object = nullptr);
+ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(GlobalObject& global_object, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, u32 increment, StringView unit, StringView rounding_mode, Object* relative_to_object);
 String temporal_duration_to_string(double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, Variant<StringView, u8> const& precision);
 ThrowCompletionOr<Duration*> add_duration_to_or_subtract_duration_from_duration(GlobalObject&, ArithmeticOperation, Duration const&, Value other_value, Value options_value);