// retoor <retoor@molodetz.nl>
import "signal" for Signal
System.print(Signal.SIGINT) // expect: 2
System.print(Signal.SIGTERM) // expect: 15
System.print(Signal.SIGHUP) // expect: 1
System.print(Signal.SIGQUIT) // expect: 3
System.print(Signal.SIGUSR1) // expect: 10
System.print(Signal.SIGUSR2) // expect: 12