Automatic update from web-platform-tests
Map custom elements to two different features (#46309)
This should match https://github.com/web-platform-dx/web-features/pull/1089.
The test results on wpt.fyi were used as a guide for where there might
be tests involving customized built-in elements, and all tests with
failures were given a quick review before deciding where to map it.
Mistakes are still possible.
This is the most complicated mapping to web-features so far, and shows
some limitations of the WEB_FEATURES.yml format. This could be
simplified with exclusion patterns in the format, but would still not be
simple.
Two files were renamed in the process of preparing this:
https://github.com/web-platform-tests/wpt/pull/46305https://github.com/web-platform-tests/wpt/pull/46306
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wpt-commits: d437c3d7a1bc22ac2cd0cc902ff5d891ae448e2d
wpt-pr: 46309