* Add support for declare export
* Do not allow declare module inside declare module
* Reallow module exports outside module
* Add handling of `declare export default`
Add check for multiple module.export declarations
* Disallow export let/const/type
Refactor parsing object properties to share more code and add support
for getters and setters
* Rename tests
* Update test fixtures
* Optimize for performance
* disallow declare export interface outside of module
* Refactor code to be more readable and less lookahead
* Add comments
* Add test for export star as
* Test for number literal getter/setter
* Add more tests
* Fix tests
* Allow union types and correctly eat semi after type
* Use non computed keys
* Fix tests
