before:
$ dmd -run app.d
app.d(9): Error: function `app.why_do_i_have_to_read_this_long_ass_function_man_useless(int aa)` is not callable using argument types `(string)`
app.d(9): cannot pass argument `"wrong"` of type `string` to parameter `int aa`
after:
$ ./dmd -run app.d
app.d(9): Error: function is not callable using argument types `(string)`
app.d(9): `app.why_do_i_have_to_read_this_long_ass_function_man_useless(int aa)`
app.d(9): cannot pass argument `"wrong"` of type `string` to parameter `int aa`