Use LazyNeverDestroyed instead of DEFINE_GLOBAL for XMLNames, HTMLNames, MathMLNames and SVGNames
This is a sub-task of Bug 174979.
Created attachment 317097 [details]
Created attachment 325324 [details]
Created attachment 325336 [details]
Comment on attachment 325336 [details]
Clearing flags on attachment: 325336
Committed r224213: <https://trac.webkit.org/changeset/224213>
All reviewed patches have been landed. Closing bug.