Philip Chimento 8ad7d04afa Temporal: Test copying options object in since() and until()
In since() and until() methods, we copy the options object with
CopyDataProperties. Previously, its properties could be read in more than
one place (the method itself, and the calendar method), triggering user
code each time. Now, we pass around null-prototype objects with only data
properties.

See https://github.com/tc39/proposal-temporal/pull/2447
2023-02-14 09:45:43 -08:00
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