[webkit-dev] HTML5 tokenizer enabled

[Adam Barth]

As of early this morning, we've enabled the HTML5 tokenizer on trunk.
I expect we've broken a lot of things.  Please file bugs and CC Eric,
Tonyg, and myself.  Thanks for your patience.

You can get the old parser back by passing --legacy-parser to
DumpRenderTree or typing the command "defaults write com.apple.Safari
WebKitHTML5ParserEnabled -bool NO"

Adam

PS: The new code has a lot of ASSERTs.  If you're think parsing in
debug builds is too slow, we can remove some of these.