VM: Refactor compaction.cpp to Factor style
VM: Refactor compaction.cpp to Factor style

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