support 'as' for conversion
support 'as' for conversion

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