* Make `=` and `=>` optional in function declarations And requires `:` for return types Signed-off-by: Nick Cameron <nrc@ncameron.org> * Tests Signed-off-by: Nick Cameron <nrc@ncameron.org> * Format types in function decls Signed-off-by: Nick Cameron <nrc@ncameron.org> * Require in anon function decls Signed-off-by: Nick Cameron <nrc@ncameron.org> --------- Signed-off-by: Nick Cameron <nrc@ncameron.org>