Improve regular expression compatibility; Add support for Joni
Update standard built-in objects (rev21)
Add tail-call support for [[Construct]] rev(21)
Update runtime methods and step comments (rev21)
Update built-in objects (rev21)
Update Proxy (rev21)
Update parser for rev21
Update/Add function name tests
'yield' is always allowed as a label even in generators (rev21)
Update exclusion lists
Remove EvaluateMethodCall (rev21)
Remove [[Invoke]] operation (rev21)
Remove [[Invoke]] quirks from compatibility scripts
Remove unused code
Add step comments and remove stale fixme
Rename classes
Remove ScriptRuntime#_throw
More clean-up and step comments
Enable previously disabled tests now that tail-calls are restricted to strict mode
More tail call tests