Resurrect SimState.widen().
Resurrect SimState.widen().

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