[Soot-list] a small bug in PDG

[lpxz]

Hi, guys,
    In HashMutablePDG class, the getDependents method should only return
the dependents, but the implementation returns all successors, a
superset of the dependents. An extra check is needed to fix the bug, as
follows.

    
public List<PDGNode> getDependents(PDGNode node)
{
	//return this.getSuccsOf(node);// wrong! auxiliary edges exist.
	List<PDGNode> toret = new ArrayList<PDGNode>();//memory issue
	for(Object succ:this.getSuccsOf(node))
	{
			PDGNode succPDGN = (PDGNode)succ;
			if(this.dependentOn(succPDGN, node))
			{
				toret.add(succPDGN);
			}			
	}
	return toret;	
}

Regards
Peng