replace panic with returnError in array.go
replace panic with returnError in array.go

hachi8833/goby,goby-lang/goby,goby-lang/goby,Maxwell-Alexius/goby,st0012/Rooby,goby-lang/goby,Maxwell-Alexius/goby,hachi8833/goby,st0012/Rooby,Maxwell-Alexius/goby,hachi8833/goby