* 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
* object rest - fix when destructuring in variables/parameters
* fixes + ExportNamedDeclaration support
* Account for CatchClause
* support ForXStatement
* support assignment expression? + PR fixes