[] (0) WebIDL doesn't default 'setter' to 'creator' (HTMLOptionsCollection)
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=20571
Affected topics: DOM APIs

git-svn-id: http://svn.whatwg.org/webapps@8212 340c8d12-0b0e-0410-8428-c7bf67bfef74