End TreeBuilder's reliance on DOM.
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Fixed h5e's TreeBuilder so that it does not use `same_tree` and `has_parent_node` methods: d8c2ea5cb6
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The alias is left there temporarilly and will be removed completely in a later commit where
also components/style/gecko/generated/structs_{debug|release}.rs are re-generated (they still
use the old alias).
Issue #15017: Properly handle and report network errors on page loads.
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This patch fixes how network errors are handled during page loads: they would not be reported and cause crashes before, and do not anymore.
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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#15017 (github issue number if applicable).
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Use the newly stored line as the starting line number when
evaluating JS. This ensures that inline scripts will report
errors with meaningful line numbers.
If the last child of a node is a Text child and we are inserting text in that node,
we need to append it to that Text child. Doing that means that
HTMLStyleElement::children_changed gets called less frequently, but that's not a
problem during parsing thanks to the pop hook.
