Following the upstream ECMA-402 change tested in the previous commit, add
test coverage for the corresponding functionality in Temporal. Fix one
test that was erroneous.
Previously, "nested" calendar property bags were unwrapped up to one
level. That is, this object:
{
calendar: {
// ...Temporal.Calendar methods
}
}
would not be considered to implement the Calendar protocol, but would have
its calendar property used instead, if it were passed to an API that
required a Calendar protocol object.
These nested property bags are no longer supported. Discussion:
https://github.com/tc39/proposal-temporal/issues/2104#issuecomment-1409549753
Corresponding normative PR:
https://github.com/tc39/proposal-temporal/pull/2485
For each entry point where a string calendar name is accepted, we should
have a test that ensures the calendar name is case-insensitive. These
tests existed but several were incomplete as they didn't take nested
properties into account, and several entry points were missing this test.
Fix a minor copy-paste issue with double semicolons.