Updated the logic of CFG.get_all_nodes()
Updated the logic of CFG.get_all_nodes()

terry2012/angr,zhuyue1314/angr,axt/angr,GuardianRG/angr,axt/angr,angr/angr,f-prettyland/angr,chubbymaggie/angr,schieb/angr,avain/angr,mingderwang/angr,terry2012/angr,avain/angr,lowks/angr,f-prettyland/angr,axt/angr,xurantju/angr,iamahuman/angr,cureHsu/angr,chubbymaggie/angr,schieb/angr,tyb0807/angr,angr/angr,f-prettyland/angr,iamahuman/angr,iamahuman/angr,zhuyue1314/angr,xurantju/angr,lowks/angr,tyb0807/angr,angr/angr,fjferrer/angr,haylesr/angr,chubbymaggie/angr,GuardianRG/angr,mingderwang/angr,schieb/angr,cureHsu/angr,fjferrer/angr,tyb0807/angr,haylesr/angr