script: Implement CSS.registerProperty (#38682)

The implementation is mostly equivalent to
https://searchfox.org/mozilla-central/source/servo/ports/geckolib/glue.rs#9480.

Testing: New web platform tests start to pass

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Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
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Simon Wülker 2025-08-14 15:34:02 +02:00 committed by GitHub
parent 3a0e8fefde
commit 43da933247
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9 changed files with 185 additions and 46 deletions

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[container-units-computational-independence.html]
[Container relative unit cqw is not computationally independent]
expected: FAIL
[Container relative unit cqh is not computationally independent]
expected: FAIL
[Container relative unit cqi is not computationally independent]
expected: FAIL
[Container relative unit cqb is not computationally independent]
expected: FAIL
[Container relative unit cqmin is not computationally independent]
expected: FAIL
[Container relative unit cqmax is not computationally independent]
expected: FAIL