Checks a list of given classes and any class which is in the database but has changed will be removed. This removal involves deleting the associated FILE, METHOD, TYPE_DECL and any V where (TYPE_DECL)-AST->(v).
fun runPass(cs: List<SootClass>): List<SootClass>
This pass will check and remove any classes that require an update from the database.
a list of classes which need to be built.