vlib/v/checker/tests/array_map_fn_err.vv:33:15: notice: unused parameter: `a`
   31 | }
   32 | 
   33 | fn do_nothing(a string) {
      |               ^
   34 | }
vlib/v/checker/tests/array_map_fn_err.vv:2:25: error: function needs exactly 1 argument
    1 | fn main() {
    2 |     a1 := [1, 2, 3, 4].map(fn (a int, b int) int {
      |                            ~~~~~~~~~~~~~~~~~~~~~~~
    3 |         return a + b
    4 |     })
vlib/v/checker/tests/array_map_fn_err.vv:7:25: error: type mismatch, should use `fn(a int) T {...}`
    5 |     println(a1)
    6 | 
    7 |     a2 := [1, 2, 3, 4].map(fn (a string) string {
      |                            ~~~~~~~~~~~~~~~~~~~~~~
    8 |         return a
    9 |     })
vlib/v/checker/tests/array_map_fn_err.vv:12:25: error: type mismatch, should use `fn(a int) T {...}`
   10 |     println(a2)
   11 | 
   12 |     a3 := [1, 2, 3, 4].map(fn (a string) {})
      |                            ~~~~~~~~~~~~~~~~
   13 |     println(a3)
   14 |
vlib/v/checker/tests/array_map_fn_err.vv:15:21: error: function needs exactly 1 argument
   13 |     println(a3)
   14 | 
   15 |     a4 := [1, 2, 3, 4].map(add1)
      |                        ~~~~~~~~~
   16 |     println(a4)
   17 |
vlib/v/checker/tests/array_map_fn_err.vv:18:25: error: type mismatch, should use `fn(a int) T {...}`
   16 |     println(a4)
   17 | 
   18 |     a5 := [1, 2, 3, 4].map(add2)
      |                            ~~~~
   19 |     println(a5)
   20 |
vlib/v/checker/tests/array_map_fn_err.vv:21:25: error: type mismatch, should use `fn(a int) T {...}`
   19 |     println(a5)
   20 | 
   21 |     a6 := [1, 2, 3, 4].map(do_nothing)
      |                            ~~~~~~~~~~
   22 |     println(a6)
   23 | }