get_loop_info class modification, remove find_dep function

Author: zhixing-xu

src/analyses/dependence_graph.cpp

@@ -243,6 +243,11 @@ dep_graph_domaint::depst dep_graph_domaint::get_data_deps() const
   return data_deps;
 }
 
+dep_graph_domaint::depst dep_graph_domaint::get_control_deps() const
+{
+  return control_deps;
+}
+
 void dep_graph_domaint::output(
   std::ostream &out,
   const ai_baset &,

src/analyses/dependence_graph.h

@@ -94,7 +94,8 @@ class dep_graph_domaint:public ai_domain_baset
     const namespacet &ns) const final override;
 
   typedef std::set<goto_programt::const_targett> depst;
-  depst  get_data_deps() const;
+  depst get_data_deps() const;
+  depst get_control_deps() const;
 
   jsont output_json(
     const ai_baset &ai,