Fixed .src files for tests that failed after fixing top lever setters with fat arrows (#1066)
Make sure the transformer knows about top level setters with specifier expressions (fat arrows, #1066)
Top level simple attributes are now handled the same way as getters and setters, because when they have a specifier expression (fat arrow) they are basically getters and can have a setter (#1066)
Changed the top level attribute builder to be able to handle simple attributes as well (#1066)
Fixed stupid typos