Add unit test for GC problem
Add unit test for GC problem

factor/factor,sarvex/factor-lang,sarvex/factor-lang,littledan/Factor,mcandre/factor,nicolas-p/factor,jwmerrill/factor,bjourne/factor,jwmerrill/factor,mrjbq7/factor,tgunr/factor,erg/factor,ehird/factor,bjourne/factor,ehird/factor,ceninan/factor,kingcons/factor,dharmatech/factor,bjourne/factor,dch/factor,kingcons/factor,ceninan/factor,erg/factor,AlexIljin/factor,slavapestov/factor,sarvex/factor-lang,bpollack/factor,mcandre/factor,littledan/Factor,dharmatech/factor,nicolas-p/factor,mrjbq7/factor,mcandre/factor,sarvex/factor-lang,mrjbq7/factor,littledan/Factor,slavapestov/factor,erg/factor,factor/factor,seckar/factor,cataska/factor,kingcons/factor,sarvex/factor-lang,dharmatech/factor,dch/factor,factor/factor,erg/factor,factor/factor,bpollack/factor,AlexIljin/factor,factor/factor,Keyholder/factor,erg/factor,dch/factor,AlexIljin/factor,AlexIljin/factor,erg/factor,mcandre/factor,bjourne/factor,nicolas-p/factor,slavapestov/factor,slavapestov/factor,mcandre/factor,bpollack/factor,AlexIljin/factor,ceninan/factor,jwmerrill/factor,mcandre/factor,Keyholder/factor,mrjbq7/factor,mrjbq7/factor,AlexIljin/factor,slavapestov/factor,kingcons/factor,tgunr/factor,erg/factor,bjourne/factor,tgunr/factor,ceninan/factor,cataska/factor,bpollack/factor,sarvex/factor-lang,tgunr/factor,nicolas-p/factor,nicolas-p/factor,ehird/factor,tgunr/factor,mcandre/factor,bpollack/factor,dch/factor,slavapestov/factor,seckar/factor,bpollack/factor,cataska/factor,slavapestov/factor,cataska/factor,factor/factor,seckar/factor,nicolas-p/factor,bjourne/factor,tgunr/factor,bjourne/factor,dch/factor,dch/factor,mrjbq7/factor,AlexIljin/factor,bpollack/factor,nicolas-p/factor,Keyholder/factor,sarvex/factor-lang,littledan/Factor