alien.marshall.syntax: add more tests
alien.marshall.syntax: add more tests

factor/factor,mrjbq7/factor,bjourne/factor,tgunr/factor,mrjbq7/factor,slavapestov/factor,mrjbq7/factor,AlexIljin/factor,tgunr/factor,bjourne/factor,nicolas-p/factor,factor/factor,dch/factor,mrjbq7/factor,nicolas-p/factor,sarvex/factor-lang,bpollack/factor,bpollack/factor,AlexIljin/factor,slavapestov/factor,tgunr/factor,nicolas-p/factor,dch/factor,slavapestov/factor,sarvex/factor-lang,mrjbq7/factor,dch/factor,AlexIljin/factor,bpollack/factor,factor/factor,nicolas-p/factor,sarvex/factor-lang,slavapestov/factor,bpollack/factor,bpollack/factor,bjourne/factor,sarvex/factor-lang,factor/factor,bpollack/factor,factor/factor,sarvex/factor-lang,AlexIljin/factor,tgunr/factor,tgunr/factor,dch/factor,factor/factor,nicolas-p/factor,nicolas-p/factor,sarvex/factor-lang,slavapestov/factor,bjourne/factor,tgunr/factor,slavapestov/factor,dch/factor,AlexIljin/factor,bjourne/factor,AlexIljin/factor,slavapestov/factor,sarvex/factor-lang,bpollack/factor,nicolas-p/factor,dch/factor,AlexIljin/factor,bjourne/factor,bjourne/factor,mrjbq7/factor