Implement more toString and toJSON methods on Temporal builtins

[nekevss]

This Pull Request is related to ongoing work for #4072, #4073, #4074, and #4075

It changes the following:

• Bumps temporal_rs version with some various bug fixes.
• Implements toString and toJSON for PlainDateTime
• Implements toString and toJSON for PlainTime
• Implements toString and toJSON for Instant
• Implements toString and toJSON for ZonedDateTime
• Adds options::get_digit_options utility method

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	50,254	50,254	0
Passed	45,171	45,337	+166
Ignored	1,728	1,728	0
Failed	3,355	3,189	-166
Panics	0	0	0
Conformance	89.89%	90.22%	+0.33%

Fixed tests (170):

test/intl402/Temporal/Instant/prototype/toString/timezone-offset.js (previously Failed)
test/intl402/Temporal/ZonedDateTime/prototype/toLocaleString/offset-time-zone-not-supported.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-undefined.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-never.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-auto.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/options-undefined.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-always.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-critical.js (previously Failed)
test/intl402/Temporal/PlainDateTime/prototype/toString/calendarname-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/name.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/length.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/branding.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/not-a-constructor.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/basic.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/prop-desc.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toJSON/builtin.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/options-object.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/smallestunit-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/smallestunit-fractionalseconddigits.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/options-invalid.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-auto.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-ceil.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/options-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-halfExpand.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-halfFloor.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/branding.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-out-of-range.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-undefined.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-halfEven.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/rounding-cross-midnight.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-expand.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/options-undefined.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/smallestunit-valid-units.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-halfCeil.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/smallestunit-undefined.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/basic.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-number.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/prop-desc.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/smallestunit-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-floor.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-non-integer.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-halfTrunc.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/order-of-operations.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/roundingmode-trunc.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-undefined.js (previously Failed)
test/built-ins/Temporal/PlainTime/prototype/toString/fractionalseconddigits-nan.js (previously Failed)
test/built-ins/Temporal/Instant/from/argument-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/compare/argument-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/equals/argument-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/name.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/length.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/branding.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/not-a-constructor.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/basic.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/prop-desc.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toJSON/builtin.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/until/argument-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/timezone-offset.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/options-object.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/smallestunit-invalid-string.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/smallestunit-fractionalseconddigits.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-auto.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-ceil.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/options-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-halfExpand.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-halfFloor.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/branding.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-out-of-range.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-undefined.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-halfEven.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/rounding-cross-midnight.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-expand.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/smallestunit-valid-units.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-invalid-string.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-halfCeil.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/smallestunit-undefined.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-number.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/prop-desc.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/smallestunit-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/precision.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-invalid-string.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-floor.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/timezone-string.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-non-integer.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-halfTrunc.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/timezone-wrong-type.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/order-of-operations.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/roundingmode-trunc.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-undefined.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/toString/fractionalseconddigits-nan.js (previously Failed)
test/built-ins/Temporal/Instant/prototype/since/argument-wrong-type.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/from/argument-string-optional-parts.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/from/argument-string-basic-and-extended-format.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/from/argument-string-variant-decimal-separator.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/from/argument-string-decimal-places.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/withPlainTime/incorrectly-spelled-properties-ignored.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/withPlainTime/basic.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/name.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/length.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/branding.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/not-a-constructor.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/prop-desc.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toJSON/builtin.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/offset-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/smallestunit-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/options-wrong-type.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/timezonename-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/branding.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/fractionalseconddigits-out-of-range.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/fractionalseconddigits-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/prop-desc.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/roundingmode-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/calendarname-invalid-string.js (previously Failed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/fractionalseconddigits-nan.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/name.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/length.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/branding.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/not-a-constructor.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/basic.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/prop-desc.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/builtin.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toJSON/year-format.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/options-object.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-undefined.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-never.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/smallestunit-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/smallestunit-fractionalseconddigits.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-auto.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-ceil.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/options-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/rounding-edge-of-range.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-halfExpand.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-halfFloor.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-auto.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/branding.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-out-of-range.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-undefined.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-halfEven.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/rounding-cross-midnight.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-expand.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/smallestunit-valid-units.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-halfCeil.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/smallestunit-undefined.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/basic.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-number.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-always.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/prop-desc.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/smallestunit-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-critical.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-floor.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-non-integer.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-halfTrunc.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-wrong-type.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/calendarname-invalid-string.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/order-of-operations.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/roundingmode-trunc.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/year-format.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-undefined.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/rounding-direction.js (previously Failed)
test/built-ins/Temporal/PlainDateTime/prototype/toString/fractionalseconddigits-nan.js (previously Failed)

Broken tests (4):

test/intl402/Temporal/ZonedDateTime/prototype/toLocaleString/time-zone-canonicalized.js (previously Passed)
test/built-ins/Temporal/Instant/prototype/add/cross-epoch.js (previously Passed)
test/built-ins/Temporal/ZonedDateTime/prototype/toLocaleString/return-string.js (previously Passed)
test/built-ins/Temporal/ZonedDateTime/prototype/toString/smallestunit-plurals-accepted.js (previously Passed)