LibJS: Reflect infallibility editorial changes in the Temporal spec

See:

- https://github.com/tc39/proposal-temporal/commit/3c0671f
- https://github.com/tc39/proposal-temporal/commit/fe28b86

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

@@ -81,7 +81,7 @@ Calendar* get_builtin_calendar(GlobalObject& global_object, String const& identi
 // 12.1.4 GetISO8601Calendar ( )
 Calendar* get_iso8601_calendar(GlobalObject& global_object)
 {
-    // 1. Return ? GetBuiltinCalendar("iso8601").
+    // 1. Return ! GetBuiltinCalendar("iso8601").
     return get_builtin_calendar(global_object, "iso8601");
 }
 
@@ -346,7 +346,7 @@ Object* to_temporal_calendar_with_iso_default(GlobalObject& global_object, Value
 {
     // 1. If temporalCalendarLike is undefined, then
     if (temporal_calendar_like.is_undefined()) {
-        // a. Return ? GetISO8601Calendar().
+        // a. Return ! GetISO8601Calendar().
         return get_iso8601_calendar(global_object);
     }
     // 2. Return ? ToTemporalCalendar(temporalCalendarLike).

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

@@ -71,10 +71,8 @@ JS_DEFINE_NATIVE_FUNCTION(Now::plain_date_time_iso)
 {
     auto temporal_time_zone_like = vm.argument(0);
 
-    // 1, Let calendar be ? GetISO8601Calendar().
+    // 1, Let calendar be ! GetISO8601Calendar().
     auto* calendar = get_iso8601_calendar(global_object);
-    if (vm.exception())
-        return {};
 
     // 2. Return ? SystemDateTime(temporalTimeZoneLike, calendar).
     return system_date_time(global_object, temporal_time_zone_like, calendar);
@@ -91,7 +89,7 @@ JS_DEFINE_NATIVE_FUNCTION(Now::plain_date)
     if (vm.exception())
         return {};
 
-    // 2. Return ? CreateTemporalDate(dateTime.[[ISOYear]], dateTime.[[ISOMonth]], dateTime.[[ISODay]], dateTime.[[Calendar]]).
+    // 2. Return ! CreateTemporalDate(dateTime.[[ISOYear]], dateTime.[[ISOMonth]], dateTime.[[ISODay]], dateTime.[[Calendar]]).
     return create_temporal_date(global_object, date_time->iso_year(), date_time->iso_month(), date_time->iso_day(), date_time->calendar());
 }
 
@@ -100,17 +98,15 @@ JS_DEFINE_NATIVE_FUNCTION(Now::plain_date_iso)
 {
     auto temporal_time_zone_like = vm.argument(0);
 
-    // 1. Let calendar be ? GetISO8601Calendar().
+    // 1. Let calendar be ! GetISO8601Calendar().
     auto* calendar = get_iso8601_calendar(global_object);
-    if (vm.exception())
-        return {};
 
     // 2. Let dateTime be ? SystemDateTime(temporalTimeZoneLike, calendar).
     auto* date_time = system_date_time(global_object, temporal_time_zone_like, calendar);
     if (vm.exception())
         return {};
 
-    // 3. Return ? CreateTemporalDate(dateTime.[[ISOYear]], dateTime.[[ISOMonth]], dateTime.[[ISODay]], dateTime.[[Calendar]]).
+    // 3. Return ! CreateTemporalDate(dateTime.[[ISOYear]], dateTime.[[ISOMonth]], dateTime.[[ISODay]], dateTime.[[Calendar]]).
     return create_temporal_date(global_object, date_time->iso_year(), date_time->iso_month(), date_time->iso_day(), date_time->calendar());
 }
 
@@ -119,16 +115,15 @@ JS_DEFINE_NATIVE_FUNCTION(Now::plain_time_iso)
 {
     auto temporal_time_zone_like = vm.argument(0);
 
-    // 1. Let calendar be ? GetISO8601Calendar().
-    // NOTE: No exception check needed for GetISO8601Calendar, see https://github.com/tc39/proposal-temporal/pull/1643
+    // 1. Let calendar be ! GetISO8601Calendar().
     auto* calendar = get_iso8601_calendar(global_object);
 
     // 2. Let dateTime be ? SystemDateTime(temporalTimeZoneLike, calendar).
-    auto date_time = system_date_time(global_object, temporal_time_zone_like, calendar);
+    auto* date_time = system_date_time(global_object, temporal_time_zone_like, calendar);
     if (vm.exception())
         return {};
 
-    // 3. Return ? CreateTemporalTime(dateTime.[[ISOHour]], dateTime.[[ISOMinute]], dateTime.[[ISOSecond]], dateTime.[[ISOMillisecond]], dateTime.[[ISOMicrosecond]], dateTime.[[ISONanosecond]]).
+    // 3. Return ! CreateTemporalTime(dateTime.[[ISOHour]], dateTime.[[ISOMinute]], dateTime.[[ISOSecond]], dateTime.[[ISOMillisecond]], dateTime.[[ISOMicrosecond]], dateTime.[[ISONanosecond]]).
     return create_temporal_time(global_object, date_time->iso_hour(), date_time->iso_minute(), date_time->iso_second(), date_time->iso_millisecond(), date_time->iso_microsecond(), date_time->iso_nanosecond());
 }
 

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

@@ -154,8 +154,7 @@ PlainTime* create_temporal_time(GlobalObject& global_object, u8 hour, u8 minute,
     // 8. Set object.[[ISOMillisecond]] to millisecond.
     // 9. Set object.[[ISOMicrosecond]] to microsecond.
     // 10. Set object.[[ISONanosecond]] to nanosecond.
-    // 11. Set object.[[Calendar]] to ? GetISO8601Calendar().
-    // NOTE: No exception check needed for GetISO8601Calendar, see https://github.com/tc39/proposal-temporal/pull/1643
+    // 11. Set object.[[Calendar]] to ! GetISO8601Calendar().
     auto* object = ordinary_create_from_constructor<PlainTime>(global_object, *new_target, &GlobalObject::temporal_plain_time_prototype, hour, minute, second, millisecond, microsecond, nanosecond, *get_iso8601_calendar(global_object));
     if (vm.exception())
         return {};