Partial fix for #12415.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
<!-- Either: -->
- [X] There are tests for these changes
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
Source-Repo: https://github.com/servo/servo
Source-Revision: 8e79709ed1770f66a00c01341a00241bd3c4b386
This might be a bad idea, especially on the webidl side. However, we started talking about the idea that modelines are a lint error (https://github.com/servo/servo/issues/10719), and these changes would be required before enabling a modeline lint.
If it bitrots, it's easy to recreate with
```
find * -type f -exec sed '/- Mode:/d' -i {} +
find * -type f -exec sed '/ vim:/d' -i {} +
git checkout -- python/tidy/servo_tidy/tidy.py
git checkout -- python/tidy/servo_tidy_tests/spec.webidl
git commit -a
```
Source-Repo: https://github.com/servo/servo
Source-Revision: dff217c2e3ff0b77eeebf62d36c2bf57c044cf14
Implement the interface HTMLDetailsElement ( // https://html.spec.whatwg.org/multipage/#htmldetailselement )
All tests pass in
tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-details-element/details.html
&
tests/wpt/web-platform-tests/html/semantics/interactive-elements/the-details-element/toggleEvent.html
Anyway, no change is made on layout and attribute open currently has no effect, it just fires a toggle event.
Source-Repo: https://github.com/servo/servo
Source-Revision: 5b2d2c0ed88e8b635f91c3421b472c804dd1afe4
