[Temporal] Remove v8 staging test plain-date-time-with-calendar and -with-plain-time

The tests in `test/staging/Temporal/v8/plain-date-time-with-calendar.js` are covered by `test/built-ins/Temporal/PlainDateTime/prototype/withCalendar/branding.js`. Move the rest to
`test/intl402/Temporal/PlainDateTime/prototype/withCalendar/roundtrip-from-iso8601.js`.

Some tests in `test/staging/Temporal/v8/plain-date-time-with-plain-time.js` are covered by tests in
- `test/built-ins/Temporal/PlainDateTime/prototype/withPlainTime/branding.js`
- `test/built-ins/Temporal/PlainDateTime/prototype/withPlainTime/argument-propertybag-optional-properties.js`
- `test/built-ins/Temporal/PlainDateTime/prototype/withPlainTime/argument-wrong-type.js`
Move the rest to `test/intl402/Temporal/PlainDate/prototype/withPlainTime/basic-roc.js` (in new directory).

Author: ioannad

test/intl402/Temporal/PlainDate/prototype/withPlainTime/basic-roc.js

@@ -0,0 +1,21 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.plaindatetime.prototype.withplaintime
+description: withPlainTime should work for roc calendar dates
+features: [Temporal, Intl.Era-monthcode]
+includes: [temporalHelpers.js]
+---*/
+
+let timeRecord = {
+  hour: 9,
+  minute: 8,
+  second: 7,
+  millisecond: 6,
+  microsecond: 5,
+  nanosecond: 4
+};
+
+let d = new Temporal.PlainDateTime(2020, 3, 15, 4, 5, 6, 7, 8, 9, 'roc');
+TemporalHelpers.assertPlainDateTime(d.withPlainTime(timeRecord), 109, 3, 'M03', 15, 9, 8, 7, 6, 5, 4, '', 'roc', 109);

…oral/v8/plain-date-time-with-calendar.js …e/withCalendar/roundtrip-from-iso8601.jstest/staging/Temporal/v8/plain-date-time-with-calendar.js renamed to test/intl402/Temporal/PlainDateTime/prototype/withCalendar/roundtrip-from-iso8601.js test/staging/Temporal/v8/plain-date-time-with-calendar.js renamed to test/intl402/Temporal/PlainDateTime/prototype/withCalendar/roundtrip-from-iso8601.js

@@ -2,18 +2,13 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-esid: pending
-description: >
-  Automatically ported from plain-date-time-with-calendar test
-  in V8's mjsunit test plain-date-time-with-calendar.js
+esid: sec-temporal.plaindatetime.prototype.withcalendar
+description: Converting to iso8601 and back works as expeced.
 includes: [temporalHelpers.js]
 features: [Temporal]
 ---*/
 
 let d1 = new Temporal.PlainDateTime(1911, 10, 10, 4, 5, 6, 7, 8, 9);
-let badDateTime = { withCalendar: d1.withCalendar };
-assert.throws(TypeError, () => badDateTime.withCalendar('iso8601'));
-
 let d2 = d1.withCalendar('roc');
 assert.sameValue('roc', d2.calendarId);
 TemporalHelpers.assertPlainDateTime(d2, 0, 10, 'M10', 10, 4, 5, 6, 7, 8, 9, '', 'broc', 1);