function f/0
function g/0
end function
end function
# (function (@ 1 0-8) ‘f/0’
# (.inner
# (function (@ 2 2-10) ‘g/0’
# (.inner nil)
# )
# )
# )
# :2:2–10: error: nested function definition
# function g/0
# ^^^^^^^^
# :1:0–8: note: outer function defined here
# function f/0
# ^^^^^^^^