function f/0
  m()
end function

# (function (@ 1 0-8) ‘f/0’
#   (.inner
#     (macro_call (@ 2 2-3) ‘m/0’
#       (.arguments nil)
#     )
#   )
# )
# :2:2–3: error: macro call inside function definition
#    m()
#    ^