add in failing comment
@@ -5,6 +5,12 @@ comment
// This is a comment
/* This is also a comment */
/* this comment /* // /** ends here: */
+/**
+ * Is [:true:] if this comment is a documentation comment.
+ *
+ * That is, that the comment is either enclosed in [: /** ... */ :] or starts
+ * with [: /// :].
+ */
---
