Fix binary-trees benchmark
Fix binary-trees benchmark

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