Allocate calendar before JSTemporalPlainTime to fix heap verification

Bug: v8:12978
Change-Id: Ic8c73eafbd080714915268c8bcb9f2c30614b9b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3711712
Auto-Submit: Adam Klein <adamk@chromium.org>
Reviewed-by: Frank Tang <ftang@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81288}

src/objects/js-temporal-objects.cc

@@ -686,13 +686,14 @@ MaybeHandle<JSTemporalPlainTime> CreateTemporalTime(
     THROW_INVALID_RANGE(JSTemporalPlainTime);
   }
 
+  Handle<JSTemporalCalendar> calendar = temporal::GetISO8601Calendar(isolate);
+
   // 4. Let object be ? OrdinaryCreateFromConstructor(newTarget,
   // "%Temporal.PlainTime.prototype%", « [[InitializedTemporalTime]],
   // [[ISOHour]], [[ISOMinute]], [[ISOSecond]], [[ISOMillisecond]],
   // [[ISOMicrosecond]], [[ISONanosecond]], [[Calendar]] »).
   ORDINARY_CREATE_FROM_CONSTRUCTOR(object, target, new_target,
                                    JSTemporalPlainTime)
-  Handle<JSTemporalCalendar> calendar = temporal::GetISO8601Calendar(isolate);
   object->set_hour_minute_second(0);
   object->set_second_parts(0);
   // 5. Set object.[[ISOHour]] to hour.