Check whether an element is custom in the spec-compliant way (#35960)

* Check whether element is custom in spec-compliant way

Signed-off-by: Xiaocheng Hu <xiaochengh.work@gmail.com>

* Update tests

Signed-off-by: Xiaocheng Hu <xiaochengh.work@gmail.com>

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Signed-off-by: Xiaocheng Hu <xiaochengh.work@gmail.com>
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Xiaocheng Hu 2025-03-14 02:03:57 +08:00 committed by GitHub
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commit 62d6759106
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6 changed files with 71 additions and 13 deletions

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@ -1,4 +0,0 @@
[custom-element-reaction-queue.html]
[Upgrading a custom element must not invoke attributeChangedCallback for the attribute that is changed during upgrading]
expected: FAIL