* SUMMARY It would be nice if we had tests and testing infrastructure for RFC-2109-style cookies. LayoutTests/http/tests/cookies/double-quoted-value-with-semi-colon.html used to set this type of cookie, but it was causing problems after bugs were fixed in other components (see Bug 36997).
Adam Barth (CC'd) has been doing some work around cookie standardization (see http://tools.ietf.org/html/draft-abarth-cookie-07), which would obsolete RFC2109. I don't know the progress of this standard though so maybe it is worth staying with the RFC for now.
RFC 2109 is obsolete. The new spec is here: https://datatracker.ietf.org/doc/draft-ietf-httpstate-cookie/ We're getting close to last call. I have a bunch of tests here: http://github.com/abarth/http-state/tree/master/tests/ We should turn them all into layout tests.
Changing the sense of this bug to import abarth's cookie test suite into WebKit since RFC 2109 is obsolete.