multiline comments aren't parsed correctly

[bakkot]

E.g. this is rejected.

[bakkot]

Doesn't look like this is totally fixed; check the ASTs for

https://github.com/tc39/test262/blob/master/test/annexB/language/comments/multi-line-html-close.js
https://github.com/tc39/test262/blob/master/test/annexB/language/comments/single-line-html-close.js
https://github.com/tc39/test262/blob/master/test/annexB/language/comments/single-line-html-open.js
https://github.com/tc39/test262/blob/master/test/annexB/language/comments/single-line-html-close-asi.js

[Protryon]

Can confirm that all of these tests parse as expected in the current es2016 branch.