=========================
One empty quoted argument
=========================

message("")

---
(source_file
  (command_invocation
    (identifier)
    (arguments
     (argument (quoted_argument))
    )
  )
)

===================
One quoted argument
===================

message("An argument")

---
(source_file
  (command_invocation
    (identifier)
    (arguments
     (argument (quoted_argument))
    )
  )
)

====================
Two quoted arguments
====================

message("First argument" "Second argument")

---
(source_file
  (command_invocation
    (identifier)
    (arguments
     (argument (quoted_argument))
     (seperation (space))
     (argument (quoted_argument))
    )
  )
)

=================================
A quoted argument with line break
=================================

message("An argument
with line break")

---
(source_file
  (command_invocation
    (identifier)
    (arguments
     (argument (quoted_argument))
    )
  )
)