This allows us to not generate trait bounds for field types anymore,
by excluding bounds for type parameters used only in fields annotated
with `#[animation(error)]`.
The syntax is `#[animation(no_bound(Foo, Bar))]` where `Foo` is a type
parameter for the type on which we derive things. Ideally this should
be an attribute on the type parameter but this isn't stable yet.
Extract text emphasis style
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Extracted the text-emphasis-style property out of the inherited_text.mako.rs.
This is a part of #19015
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- [X] `./mach cargo-geckolib check` does not report any errors
- [X] These changes fix#19940 (github issue number if applicable).
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- [X] These changes do not require tests because it's a refactoring
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style: Make 'font' shorthand reset 'font-variation-settings' property
As required by the spec: https://drafts.csswg.org/css-fonts-4/#font-prop
See https://bugzilla.mozilla.org/show_bug.cgi?id=1435983
Basically, make font-variation-settings work in the same way as font-feature-settings
already does.
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because font-variation-settings isn't supported in servo; it is implemented here for gecko/stylo, and will be tested by mozilla-central mochitests.
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We assume that types such as `<Self as ToComputedValue>::ToComputedValue == Self`
just construct a new value that is just a clone of the original one without any
additional code.
