Method get_exprs

src/StatementFor.h:74–74

	virtual void get_blocks(std::vector<const Block*>& blks) const { blks.push_back(&body);}

	virtual void get_exprs(std::vector<const Expression*>& exps) const {exps.push_back(&test);}

	virtual bool visit_facts(vector<const Fact*>& inputs, CGContext& cg_context) const;