* Remove whitespace generation and rely on default printing
Changes to printing:
* Add newline after last empty SwitchCase
* Add newlines around block comments if they are non-flow comments or contain newlines
* Fix a few more fixtures
While it may appear that this should be done by es2015-function-name,
another way to think about it is that es2015-function-name implements
the naming that javascript engines are supposed to do; and javascript
engines cannot name function expressions that are the object of a
member expression.
