Update for CLE api changes, check explicit elf symbol
Update for CLE api changes, check explicit elf symbol

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