Same as commit f9fa548d43.
These are String from the outset, so this patch is almost entirely just
changing function parameter types. This will allow us to cache calendar
objects in ICU without invoking any extra allocations.
The assertions can be hit when Temporal.Duration.prototype.round / total
are provided a PlainDate at the very limits of valid date-times. Tests
were recently added to test262 which trip these assertions, thus we are
now crashing in those tests. Let's throw a RangeError instead, as this
is the behavior expected by the tests.
We were passing types like ISODate by reference so that they could be
used as forward-declarations. But after commit 021a5f4ded, we now have
their full definitions anywhere they're needed. So let's pass ISODate by
value everywhere consistently - it is only 8 bytes.
Our Temporal implementation is woefully out of date. The spec has been
so vastly rewritten that it is unfortunately not practical to update our
implementation in-place. Even just removing Temporal objects that were
removed from the spec, or updating any of the simpler remaining objects,
has proven to be a mess in previous attempts.
So, this removes our Temporal implementation. AOs used by other specs
are left intact.
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:
* JS::NonnullGCPtr -> GC::Ref
* JS::GCPtr -> GC::Ptr
* JS::HeapFunction -> GC::Function
* JS::CellImpl -> GC::Cell
* JS::Handle -> GC::Root
