=========================
Bracket comment [comment]
=========================
#[[Some comment]]

---

(source_file
  (comment (bracket_argument))
)

==========================================================
Command invocation with embedded bracket comment [comment]
==========================================================
message(STATUS #[[Some comment]] "comment is next" #[[Some comment]])

---

(source_file
  (message_command
    (message)
    (comment (bracket_argument))
    (argument (quoted_argument (quoted_element)))
    (comment (bracket_argument))
  )
)

======================
Line comment [comment]
======================