Set>>addNewElement: should always return boolean, even for nil arg
Set>>addNewElement: should always return boolean, even for nil arg

blairmcg/Dolphin,dolphinsmalltalk/Dolphin,objectarts/Dolphin,shoshanatech/Dolphin,blairmcg/Dolphin,blairmcg/Dolphin,ScottyPotty1/ScottyPotty1-Main-Repository,dolphinsmalltalk/Dolphin,shoshanatech/Dolphin,blairmcg/Dolphin,jgfoster/Dolphin,jgfoster/Dolphin,shoshanatech/Dolphin,jgfoster/Dolphin,objectarts/Dolphin,jgfoster/Dolphin,shoshanatech/Dolphin,ScottyPotty1/ScottyPotty1-Main-Repository,dolphinsmalltalk/Dolphin,dolphinsmalltalk/Dolphin