===========================
Minimal
===========================
--
---

(design_file
  (comment))

===========================
Multi line - Minimal
===========================
/**/
---

(design_file
  (comment))

===========================
Multi line - Single line
===========================
/**/
/***/
/****/
/***/
/**/
---

(design_file
  (comment)
  (comment)
  (comment)
  (comment)
  (comment))

===========================
Multi line - Multiple lines
===========================
/*





*/
---

(design_file
  (comment))

===========================
Multi line - Banner
===========================
/********************************
*********************************/
---

(design_file
  (comment))
