"do {;} while(false) false" parses according to spec: as a syntax error

```
Try typing it into 
http://es-lab.googlecode.com/svn/trunk/site/esparser/index.html

See https://bugs.ecmascript.org/show_bug.cgi?id=8
```

Original issue reported on code.google.com by `erights@google.com` on 9 Feb 2011 at 1:40
