Valid Feature Query css grammar productions should always return a value, as they are used to determine if a feature query succeeds. Two of the productions were not returning a value, which caused problems when the uninitialized return value was subsequently used.
Created attachment 234721 [details]
Comment on attachment 234721 [details]
Clearing flags on attachment: 234721
Committed r171008: <http://trac.webkit.org/changeset/171008>
All reviewed patches have been landed. Closing bug.