Added support for ES5 property names. Object initialisers and dot-notation property access now allows keywords. Also allowed non-identifiers after "get" or "set" in an object initialiser.

Randomize the addresses of allocated executable memory on Windows.



git-svn-id: http://v8.googlecode.com/svn/trunk@5172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00