DOM: Make moveBefore() throw for all pre-move validity checks

[chromium-wpt-export-bot]

This CL makes moveBefore() match the spec PR 1, with regard to the
agreed-upon error-throwing behavior for all pre-moving validity and
hierarchy conditions. This means throwing an exception for:

• Disconnected parent destination or move target
• Cross-document Nodes
• Destination parent that is not an Element node
• Move target that is not an Element or character data

R=nrosenthal@chromium.org

Bug: 40150299
Change-Id: Iaf5243fb2762e21ede068a222600bd158859fe92
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5935350
Reviewed-by: Noam Rosenthal <nrosenthal@chromium.org>
Commit-Queue: Dominic Farolino <dom@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1369303}

[wpt-pr-bot]

The review process for this patch is being conducted in the Chromium project.

[dev-ansung]

WPT Command: python3 ./wpt run --channel=nightly --verify --verify-no-chaos-mode --verify-repeat-loop=0 --verify-repeat-restart=10 --github-checks-text-file=/home/test/artifacts/checkrun.md --affected base_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --no-headless --verify-log-full --binary=/home/test/build/firefox/firefox firefox

Some affected tests had inconsistent (flaky) results:

Unstable results

Test	Subtest	Results	Messages
/dom/nodes/moveBefore/tentative/css-transition-cross-document.html		OK: 1/10, TIMEOUT: 9/10
/dom/nodes/moveBefore/tentative/css-transition-cross-document.html	Moving a transition across documents should reset its state	FAIL: 1/10, TIMEOUT: 9/10	Test timed out;assert_throws_dom: function "() => {\n document.querySelector("#new-parent").moveBefore(item, null);\n }" threw object "TypeError: document.querySelector(...).moveBefore is not a function" that is not a DOMException HIERARCHY_REQUEST_ERR: property "code" is equal to undefined, expected 3

These may be pre-existing or new flakes. Please try to reproduce (see the above WPT command, though some flags may not be needed when running locally) and determine if your change introduced the flake. If you are unable to reproduce the problem, please tag @web-platform-tests/wpt-core-team in a comment for help.

[dev-ansung]

Created crbug.com/374788499
@KyleJu @jcscottiii can you help admin merge, thanks!