Regressed by bug 223892
`conic-gradient(from -2deg, red, blue)` serializes to `conic-gradient(red, blue)` which is incorrect.
Created attachment 426333 [details]
This patch modifies the imported WPT tests. Please ensure that any changes on the tests (not coming from a WPT import) are exported to WPT. Please see https://trac.webkit.org/wiki/WPTExportProcess
Created attachment 426337 [details]
Committed r276203 (236685@main): <https://commits.webkit.org/236685@main>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 426337 [details].