The OverridesVisitChildren flag is used to annotate that a JSCell subclass overrides the visitChildren() call via the method table.
However, this flag is not actually used by anything other than assertions. I think we can remove it, since it contributes a fair amount of LOC.
Doing so will also free up one inline flag bit in JSCell.
Created attachment 235869 [details]
Comment on attachment 235869 [details]
Committed r171939: <http://trac.webkit.org/changeset/171939>