vlib/v/checker/tests/array_map_arg_mismatch.vv:3:4: error: expected 1 argument, but got 0
    1 | fn main() {
    2 |     a := [1, 2, 3]
    3 |     a.map()
      |       ~~~~~
    4 |     a.map(it * 2, 3)
    5 | }
vlib/v/checker/tests/array_map_arg_mismatch.vv:4:4: error: expected 1 argument, but got 2
    2 |     a := [1, 2, 3]
    3 |     a.map()
    4 |     a.map(it * 2, 3)
      |       ~~~~~~~~~~~~~~
    5 | }