CFGFast: more fixes.
CFGFast: more fixes.

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