vm: fix factor_vm::dispatch_signal()
vm: fix factor_vm::dispatch_signal()

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