fixed a wrong source that lead to serious over-tainting
fixed a wrong source that lead to serious over-tainting

secure-software-engineering/soot-infoflow-android,lilicoding/soot-infoflow-android,xph906/FlowDroidNew,jameswhang/flowdroid,xph906/FlowDroidNew,wsnavely/soot-infoflow-android,Xiejiayun/soot-infoflow-android,uds-se/soot-infoflow-android