Implement
[disentangle](https://html.spec.whatwg.org/multipage/#disentangle)
Remove bespoke gc logic which now becomes unnecessary.
Adds a wpt test that hits the "disentangle while in transfer" logic.
Updates streams code, fixing an error where disentanglement is
conditional on an error.
Test coverage: there are existing tests in
`/webmessaging/message-channels/close-event/explicitly-closed.tentative.window.js`
for the no transfer case, and the simple completed transfer case, and
this PR adds a test for the more complicated transfer in progress case.
Fix https://github.com/servo/servo/issues/36465
---------
Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
In #36364 I moved both serializable and transferable implementations
from the `script_traits` crate into a single file called
`message_ports.rs`. Gregory raised the point that this was a bit of a
inaccurate grouping. This change attempts to fix it according to the
division in the specification.
See [the relevant thread on zulip][thread].
[thread]:
510864104.
Testing: Covered by existing test as this is just code movement.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
