DirectedSymExec: support comparing more types of arguments.
DirectedSymExec: support comparing more types of arguments.

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