fix to adapt claripy no_z3 branck
fix to adapt claripy no_z3 branck

chubbymaggie/simuvex,f-prettyland/angr,axt/angr,zhuyue1314/simuvex,axt/angr,chubbymaggie/angr,schieb/angr,chubbymaggie/simuvex,tyb0807/angr,iamahuman/angr,tyb0807/angr,angr/simuvex,angr/angr,schieb/angr,tyb0807/angr,chubbymaggie/angr,axt/angr,chubbymaggie/angr,f-prettyland/angr,schieb/angr,iamahuman/angr,angr/angr,chubbymaggie/simuvex,f-prettyland/angr,iamahuman/angr,angr/angr