Sync hashless hex color quirk tests with https://github.com/whatwg/quirks/commit/f84b11e4abb561317c407c1a0d47ff45ad6e4fcf
Flip pass condition for some SVG tests
Don't strictly test CSSOM serialization for url()
Actually fix SVG checking. Also avoid rounding errors in hsl() etc.
Merge pull request #1442 from zcorpan/quirk-hashless

Sync hashless hex color quirk tests with ...