tests: do not use -prod for compiling .vv files in vlib/v/checker/tests/ and vlib/v/parser/tests/

vlib/v/checker/tests/.gitignore

@@ -1,4 +1,5 @@
 *.v
 *.c
+require_or_block_sumtype_map.err
 !*_test.v
-!modules/**/*.v
+!modules/**/*.v

vlib/v/checker/tests/ambiguous_field_method_err.out

@@ -1,3 +1,9 @@
+vlib/v/checker/tests/ambiguous_field_method_err.vv:23:2: warning: unused variable: `n`
+   21 |     b := Bar{}
+   22 |     b.test()
+   23 |     n := b.name
+      |     ^
+   24 | }
 vlib/v/checker/tests/ambiguous_field_method_err.vv:22:4: error: ambiguous method `test`
    20 | fn main() {
    21 |     b := Bar{}
@@ -10,4 +16,4 @@ vlib/v/checker/tests/ambiguous_field_method_err.vv:23:9: error: ambiguous field
    22 |     b.test()
    23 |     n := b.name
       |            ~~~~
-   24 | }
+   24 | }

vlib/v/checker/tests/array_of_generic_struct_init_err.out

@@ -1,5 +1,11 @@
+vlib/v/checker/tests/array_of_generic_struct_init_err.vv:6:6: warning: unused variable: `arr`
+    4 | 
+    5 | fn main() {
+    6 |     mut arr := []Item{}
+      |         ~~~
+    7 | }
 vlib/v/checker/tests/array_of_generic_struct_init_err.vv:6:15: error: generic struct must specify type parameter, e.g. Foo<int>
-    4 |
+    4 | 
     5 | fn main() {
     6 |     mut arr := []Item{}
       |                  ~~~~

vlib/v/checker/tests/assign_to_typeless_variable_err.out

@@ -1,3 +1,9 @@
+vlib/v/checker/tests/assign_to_typeless_variable_err.vv:2:3: warning: unused variable: `val`
+    1 | fn main() {
+    2 |   val := {}
+      |   ~~~
+    3 |   val = 1
+    4 | }
 vlib/v/checker/tests/assign_to_typeless_variable_err.vv:2:10: error: invalid empty map initialisation syntax, use e.g. map[string]int{} instead
     1 | fn main() {
     2 |   val := {}

vlib/v/checker/tests/cannot_cast_to_struct.out

@@ -1,4 +1,11 @@
-vlib/v/checker/tests/cannot_cast_to_struct.vv:10:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/cannot_cast_to_struct.vv:10:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+    8 | 
+    9 | fn main() {
+   10 |     _ := Test(Abc{})
+      |          ~~~~~~~~~~~
+   11 |     sum := Alphabet(Xyz{})
+   12 |     _ = Xyz(sum)
+vlib/v/checker/tests/cannot_cast_to_struct.vv:10:7: error: cannot convert struct `Abc` to struct `Test`
     8 | 
     9 | fn main() {
    10 |     _ := Test(Abc{})

vlib/v/checker/tests/compile_error.out

@@ -1,3 +1,10 @@
+vlib/v/checker/tests/compile_error.vv:8:5: warning: On non Vinix this warning should be shown
+    6 | 
+    7 | $if !vinix {
+    8 |     $compile_warn('On non Vinix this warning should be shown')
+      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    9 | }
+   10 |
 vlib/v/checker/tests/compile_error.vv:4:5: error: Only Serenity is supported
     2 | 
     3 | $if !serenity {
@@ -5,10 +12,3 @@ vlib/v/checker/tests/compile_error.vv:4:5: error: Only Serenity is supported
       |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     5 | }
     6 |
-vlib/v/checker/tests/compile_error.vv:8:5: error: On non Vinix this warning should be shown
-    6 | 
-    7 | $if !vinix {
-    8 |     $compile_warn('On non Vinix this warning should be shown')
-      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    9 | }
-   10 |

vlib/v/checker/tests/comptime_for.out

@@ -1,3 +1,16 @@
+vlib/v/checker/tests/comptime_for.vv:2:7: warning: unused variable: `m`
+    1 | fn unknown() {
+    2 |     $for m in Huh.methods {}
+      |          ^
+    3 |     $for f in Huh.fields {}
+    4 |     $for f in T.fields {
+vlib/v/checker/tests/comptime_for.vv:3:7: warning: unused variable: `f`
+    1 | fn unknown() {
+    2 |     $for m in Huh.methods {}
+    3 |     $for f in Huh.fields {}
+      |          ^
+    4 |     $for f in T.fields {
+    5 |         $if f.typ is Huh {}
 vlib/v/checker/tests/comptime_for.vv:2:12: error: unknown type `Huh`
     1 | fn unknown() {
     2 |     $for m in Huh.methods {}

vlib/v/checker/tests/deprecations.out

@@ -12,6 +12,26 @@ vlib/v/checker/tests/deprecations.vv:67:4: notice: method `Abc.future` will be d
       |       ~~~~~~~~
    68 |     a.past()
    69 |     a.simply_deprecated()
+vlib/v/checker/tests/deprecations.vv:62:2: warning: function `simply_deprecated` has been deprecated; custom message 7
+   60 |     future()
+   61 |     past()
+   62 |     simply_deprecated()
+      |     ~~~~~~~~~~~~~~~~~~~
+   63 |     just_deprecated()
+   64 |     ancient()
+vlib/v/checker/tests/deprecations.vv:63:2: warning: function `just_deprecated` has been deprecated
+   61 |     past()
+   62 |     simply_deprecated()
+   63 |     just_deprecated()
+      |     ~~~~~~~~~~~~~~~~~
+   64 |     ancient()
+   65 |     //
+vlib/v/checker/tests/deprecations.vv:69:4: warning: method `Abc.simply_deprecated` has been deprecated; custom message 3
+   67 |     a.future()
+   68 |     a.past()
+   69 |     a.simply_deprecated()
+      |       ~~~~~~~~~~~~~~~~~~~
+   70 | }
 vlib/v/checker/tests/deprecations.vv:61:2: error: function `past` has been deprecated since 2021-03-01; custom message 5
    59 | fn main() {
    60 |     future()
@@ -19,20 +39,6 @@ vlib/v/checker/tests/deprecations.vv:61:2: error: function `past` has been depre
       |     ~~~~~~
    62 |     simply_deprecated()
    63 |     just_deprecated()
-vlib/v/checker/tests/deprecations.vv:62:2: error: function `simply_deprecated` has been deprecated; custom message 7
-   60 |     future()
-   61 |     past()
-   62 |     simply_deprecated()
-      |     ~~~~~~~~~~~~~~~~~~~
-   63 |     just_deprecated()
-   64 |     ancient()
-vlib/v/checker/tests/deprecations.vv:63:2: error: function `just_deprecated` has been deprecated
-   61 |     past()
-   62 |     simply_deprecated()
-   63 |     just_deprecated()
-      |     ~~~~~~~~~~~~~~~~~
-   64 |     ancient()
-   65 |     //
 vlib/v/checker/tests/deprecations.vv:64:2: error: function `ancient` has been deprecated since 1990-03-01; custom message 6
    62 |     simply_deprecated()
    63 |     just_deprecated()
@@ -47,9 +53,3 @@ vlib/v/checker/tests/deprecations.vv:68:4: error: method `Abc.past` has been dep
       |       ~~~~~~
    69 |     a.simply_deprecated()
    70 | }
-vlib/v/checker/tests/deprecations.vv:69:4: error: method `Abc.simply_deprecated` has been deprecated; custom message 3
-   67 |     a.future()
-   68 |     a.past()
-   69 |     a.simply_deprecated()
-      |       ~~~~~~~~~~~~~~~~~~~
-   70 | }

vlib/v/checker/tests/disallow_pointer_arithmetic_err.out

@@ -1,3 +1,16 @@
+vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:7:7: warning: pointer arithmetic is only allowed in `unsafe` blocks
+    5 |     _ := p * p //should be error
+    6 |     _ := p * 2 //should be error
+    7 |     _ := p + 5 //OK but only in unsafe block, r is *int
+      |          ~~~~~
+    8 |     _ := p - p //OK even in safe code, but n should be isize
+    9 | }
+vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:8:7: warning: pointer arithmetic is only allowed in `unsafe` blocks
+    6 |     _ := p * 2 //should be error
+    7 |     _ := p + 5 //OK but only in unsafe block, r is *int
+    8 |     _ := p - p //OK even in safe code, but n should be isize
+      |          ~~~~~
+    9 | }
 vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:4:7: error: invalid operator `+` to `&int` and `&int`
     2 |     x := 5
     3 |     p := &x
@@ -19,16 +32,3 @@ vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:6:7: error: invalid oper
       |          ~~~~~
     7 |     _ := p + 5 //OK but only in unsafe block, r is *int
     8 |     _ := p - p //OK even in safe code, but n should be isize
-vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:7:7: error: pointer arithmetic is only allowed in `unsafe` blocks
-    5 |     _ := p * p //should be error
-    6 |     _ := p * 2 //should be error
-    7 |     _ := p + 5 //OK but only in unsafe block, r is *int
-      |          ~~~~~
-    8 |     _ := p - p //OK even in safe code, but n should be isize
-    9 | }
-vlib/v/checker/tests/disallow_pointer_arithmetic_err.vv:8:7: error: pointer arithmetic is only allowed in `unsafe` blocks
-    6 |     _ := p * 2 //should be error
-    7 |     _ := p + 5 //OK but only in unsafe block, r is *int
-    8 |     _ := p - p //OK even in safe code, but n should be isize
-      |          ~~~~~
-    9 | }

vlib/v/checker/tests/enum_cast.out

@@ -1,25 +1,25 @@
-vlib/v/checker/tests/enum_cast.vv:9:13: error: 12 does not represent a value of enum Color
+vlib/v/checker/tests/enum_cast.vv:9:13: warning: 12 does not represent a value of enum Color
     7 |     println(Color(0))
     8 |     println(Color(10))
     9 |     println(Color(12))
       |             ~~~~~~~~~
    10 |     println(Color(-10))
    11 |
-vlib/v/checker/tests/enum_cast.vv:10:13: error: -10 does not represent a value of enum Color
+vlib/v/checker/tests/enum_cast.vv:10:13: warning: -10 does not represent a value of enum Color
     8 |     println(Color(10))
     9 |     println(Color(12))
    10 |     println(Color(-10))
       |             ~~~~~~~~~~
    11 | 
    12 |     println(Permissions(0b101))
-vlib/v/checker/tests/enum_cast.vv:13:13: error: 10 does not represent a value of enum Permissions
+vlib/v/checker/tests/enum_cast.vv:13:13: warning: 10 does not represent a value of enum Permissions
    11 | 
    12 |     println(Permissions(0b101))
    13 |     println(Permissions(0b1010))
       |             ~~~~~~~~~~~~~~~~~~~
    14 |     println(Permissions(-1))
    15 | }
-vlib/v/checker/tests/enum_cast.vv:14:13: error: -1 does not represent a value of enum Permissions
+vlib/v/checker/tests/enum_cast.vv:14:13: warning: -1 does not represent a value of enum Permissions
    12 |     println(Permissions(0b101))
    13 |     println(Permissions(0b1010))
    14 |     println(Permissions(-1))

vlib/v/checker/tests/filter_func_return_nonbool_err.out

@@ -1,3 +1,9 @@
+vlib/v/checker/tests/filter_func_return_nonbool_err.vv:2:2: warning: unused variable: `list`
+    1 | fn main() {
+    2 |     list := [1,2,3].filter(stringsss(it))
+      |     ~~~~
+    3 | }
+    4 |
 vlib/v/checker/tests/filter_func_return_nonbool_err.vv:2:25: error: type mismatch, `stringsss` must return a bool
     1 | fn main() {
     2 |     list := [1,2,3].filter(stringsss(it))

vlib/v/checker/tests/fixed_array_conv.out

@@ -1,3 +1,10 @@
+vlib/v/checker/tests/fixed_array_conv.vv:6:5: warning: cannot cast a fixed array (use e.g. `&arr[0]` instead)
+    4 | mut ip := &int(0)
+    5 | ip = arr
+    6 | _ = &int(arr)
+      |     ~~~~~~~~~
+    7 | _ = p
+    8 | _ = ip
 vlib/v/checker/tests/fixed_array_conv.vv:3:3: error: mismatched types `voidptr` and `[2]int`
     1 | arr := [2,3]!
     2 | mut p := voidptr(0)
@@ -12,13 +19,6 @@ vlib/v/checker/tests/fixed_array_conv.vv:5:4: error: mismatched types `&int` and
       |    ^
     6 | _ = &int(arr)
     7 | _ = p
-vlib/v/checker/tests/fixed_array_conv.vv:6:5: error: cannot cast a fixed array (use e.g. `&arr[0]` instead)
-    4 | mut ip := &int(0)
-    5 | ip = arr
-    6 | _ = &int(arr)
-      |     ~~~~~~~~~
-    7 | _ = p
-    8 | _ = ip
 vlib/v/checker/tests/fixed_array_conv.vv:11:13: error: cannot use `[2]int` as `voidptr` in argument 1 to `memdup`
     9 | 
    10 | unsafe {

vlib/v/checker/tests/generic_interface_err.out

@@ -1,3 +1,8 @@
+vlib/v/checker/tests/generic_interface_err.vv:10:1: warning: unused variable: `i`
+    8 | 
+    9 | s := Struct{7}
+   10 | i := Interface(s)
+      | ^
 vlib/v/checker/tests/generic_interface_err.vv:9:6: error: generic struct init must specify type parameter, e.g. Foo<int>
     7 | }
     8 | 

vlib/v/checker/tests/goto_label.out

@@ -1,3 +1,31 @@
+vlib/v/checker/tests/goto_label.vv:7:8: warning: `goto` requires `unsafe` (consider using labelled break/continue)
+    5 |     goto a1
+    6 |     _ = fn(){
+    7 |         goto f1
+      |              ~~
+    8 |         goto f2
+    9 |         goto a1
+vlib/v/checker/tests/goto_label.vv:8:8: warning: `goto` requires `unsafe` (consider using labelled break/continue)
+    6 |     _ = fn(){
+    7 |         goto f1
+    8 |         goto f2
+      |              ~~
+    9 |         goto a1
+   10 |         a1:
+vlib/v/checker/tests/goto_label.vv:9:8: warning: `goto` requires `unsafe` (consider using labelled break/continue)
+    7 |         goto f1
+    8 |         goto f2
+    9 |         goto a1
+      |              ~~
+   10 |         a1:
+   11 |         goto a1
+vlib/v/checker/tests/goto_label.vv:11:8: warning: `goto` requires `unsafe` (consider using labelled break/continue)
+    9 |         goto a1
+   10 |         a1:
+   11 |         goto a1
+      |              ~~
+   12 |     }
+   13 |     f2:
 vlib/v/checker/tests/goto_label.vv:5:7: error: unknown label `a1`
     3 |     goto f2
     4 |     f1:
@@ -19,20 +47,6 @@ vlib/v/checker/tests/goto_label.vv:8:8: error: unknown label `f2`
       |              ~~
     9 |         goto a1
    10 |         a1:
-vlib/v/checker/tests/goto_label.vv:9:8: error: `goto` requires `unsafe` (consider using labelled break/continue)
-    7 |         goto f1
-    8 |         goto f2
-    9 |         goto a1
-      |              ~~
-   10 |         a1:
-   11 |         goto a1
-vlib/v/checker/tests/goto_label.vv:11:8: error: `goto` requires `unsafe` (consider using labelled break/continue)
-    9 |         goto a1
-   10 |         a1:
-   11 |         goto a1
-      |              ~~
-   12 |     }
-   13 |     f2:
 vlib/v/checker/tests/goto_label.vv:14:7: error: unknown label `a1`
    12 |     }
    13 |     f2:

vlib/v/checker/tests/interface_generic_err.out

@@ -1,3 +1,8 @@
+vlib/v/checker/tests/interface_generic_err.vv:8:1: warning: unused variable: `why`
+    6 | // no segfault without generic
+    7 | what := What{}
+    8 | why := Why(what)
+      | ~~~
 vlib/v/checker/tests/interface_generic_err.vv:7:9: error: generic struct init must specify type parameter, e.g. Foo<int>
     5 | 
     6 | // no segfault without generic

vlib/v/checker/tests/map_func_void_return_err.out

@@ -1,3 +1,9 @@
+vlib/v/checker/tests/map_func_void_return_err.vv:2:2: warning: unused variable: `list`
+    1 | fn main() {
+    2 |     list := [1,2,3].map(voids(it))
+      |     ~~~~
+    3 | }
+    4 |
 vlib/v/checker/tests/map_func_void_return_err.vv:2:22: error: type mismatch, `voids` does not return anything
     1 | fn main() {
     2 |     list := [1,2,3].map(voids(it))

vlib/v/checker/tests/map_of_generic_struct_init_err.out

@@ -1,5 +1,11 @@
+vlib/v/checker/tests/map_of_generic_struct_init_err.vv:6:6: warning: unused variable: `m`
+    4 | 
+    5 | fn main() {
+    6 |     mut m := map[string]Item{}
+      |         ^
+    7 | }
 vlib/v/checker/tests/map_of_generic_struct_init_err.vv:6:11: error: generic struct `Item` must specify type parameter, e.g. Foo<int>
-    4 |
+    4 | 
     5 | fn main() {
     6 |     mut m := map[string]Item{}
       |              ~~~~~~~~~~~~~~~~~

vlib/v/checker/tests/mut_arg.out

@@ -1,3 +1,17 @@
+vlib/v/checker/tests/mut_arg.vv:6:3: warning: automatic referencing/dereferencing is deprecated and will be removed soon (got: 0 references, expected: 1 references)
+    4 | }
+    5 | 
+    6 | f([3,4])
+      |   ~~~~~
+    7 | mut a := [1,2]
+    8 | f(a)
+vlib/v/checker/tests/mut_arg.vv:8:3: warning: automatic referencing/dereferencing is deprecated and will be removed soon (got: 0 references, expected: 1 references)
+    6 | f([3,4])
+    7 | mut a := [1,2]
+    8 | f(a)
+      |   ^
+    9 | 
+   10 | g(mut [3,4])
 vlib/v/checker/tests/mut_arg.vv:6:3: error: function `f` parameter `par` is `mut`, so use `mut [3, 4]` instead
     4 | }
     5 | 

vlib/v/checker/tests/redundant_parentheses_warning.out

@@ -1,4 +1,4 @@
-vlib/v/checker/tests/redundant_parentheses_warning.vv:3:7: error: redundant parentheses are used
+vlib/v/checker/tests/redundant_parentheses_warning.vv:3:7: warning: redundant parentheses are used
     1 | fn main() {
     2 |     a := 2
     3 |     b := ((a + 2))

vlib/v/checker/tests/require_or_block_sumtype_map.err.out

@@ -1,4 +1,4 @@
-vlib/v/checker/tests/require_or_block_sumtype_map.err.vv:8:8: error: `or {}` block required when indexing a map with sum type value
+vlib/v/checker/tests/require_or_block_sumtype_map.err.vv:8:8: warning: `or {}` block required when indexing a map with sum type value
     6 |         println(y)
     7 |     }
     8 |     _ := x['nonexisting']

vlib/v/checker/tests/struct_cast_to_struct_generic_err.out

@@ -1,4 +1,10 @@
-vlib/v/checker/tests/struct_cast_to_struct_generic_err.vv:11:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/struct_cast_to_struct_generic_err.vv:11:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+    9 | fn main() {
+   10 |     abc := Abc<int>{}
+   11 |     _ := Xyz(abc)
+      |          ~~~~~~~~
+   12 | }
+vlib/v/checker/tests/struct_cast_to_struct_generic_err.vv:11:7: error: cannot convert struct `Abc<int>` to struct `Xyz`
     9 | fn main() {
    10 |     abc := Abc<int>{}
    11 |     _ := Xyz(abc)

vlib/v/checker/tests/struct_cast_to_struct_mut_err_a.out

@@ -1,4 +1,10 @@
-vlib/v/checker/tests/struct_cast_to_struct_mut_err_a.vv:12:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/struct_cast_to_struct_mut_err_a.vv:12:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+   10 | fn main() {
+   11 |     abc := Abc{}
+   12 |     _ := Xyz(abc)
+      |          ~~~~~~~~
+   13 | }
+vlib/v/checker/tests/struct_cast_to_struct_mut_err_a.vv:12:7: error: cannot convert struct `Abc` to struct `Xyz`
    10 | fn main() {
    11 |     abc := Abc{}
    12 |     _ := Xyz(abc)

vlib/v/checker/tests/struct_cast_to_struct_mut_err_b.out

@@ -1,4 +1,10 @@
-vlib/v/checker/tests/struct_cast_to_struct_mut_err_b.vv:12:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/struct_cast_to_struct_mut_err_b.vv:12:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+   10 | fn main() {
+   11 |     abc := Abc{}
+   12 |     _ := Xyz(abc)
+      |          ~~~~~~~~
+   13 | }
+vlib/v/checker/tests/struct_cast_to_struct_mut_err_b.vv:12:7: error: cannot convert struct `Abc` to struct `Xyz`
    10 | fn main() {
    11 |     abc := Abc{}
    12 |     _ := Xyz(abc)

vlib/v/checker/tests/struct_cast_to_struct_pub_err_a.out

@@ -1,4 +1,10 @@
-vlib/v/checker/tests/struct_cast_to_struct_pub_err_a.vv:12:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/struct_cast_to_struct_pub_err_a.vv:12:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+   10 | fn main() {
+   11 |     abc := Abc{}
+   12 |     _ := Xyz(abc)
+      |          ~~~~~~~~
+   13 | }
+vlib/v/checker/tests/struct_cast_to_struct_pub_err_a.vv:12:7: error: cannot convert struct `Abc` to struct `Xyz`
    10 | fn main() {
    11 |     abc := Abc{}
    12 |     _ := Xyz(abc)

vlib/v/checker/tests/struct_cast_to_struct_pub_err_b.out

@@ -1,4 +1,10 @@
-vlib/v/checker/tests/struct_cast_to_struct_pub_err_b.vv:12:7: error: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+vlib/v/checker/tests/struct_cast_to_struct_pub_err_b.vv:12:7: warning: casting to struct is deprecated, use e.g. `Struct{...expr}` instead
+   10 | fn main() {
+   11 |     abc := Abc{}
+   12 |     _ := Xyz(abc)
+      |          ~~~~~~~~
+   13 | }
+vlib/v/checker/tests/struct_cast_to_struct_pub_err_b.vv:12:7: error: cannot convert struct `Abc` to struct `Xyz`
    10 | fn main() {
    11 |     abc := Abc{}
    12 |     _ := Xyz(abc)

vlib/v/checker/tests/struct_unneeded_default.out

@@ -1,20 +1,20 @@
-vlib/v/checker/tests/struct_unneeded_default.vv:2:10: error: unnecessary default value of `0`: struct fields are zeroed by default
+vlib/v/checker/tests/struct_unneeded_default.vv:2:10: warning: unnecessary default value of `0`: struct fields are zeroed by default
     1 | struct Test {
     2 |     n int = 0
       |             ^
     3 |     s string = ''
     4 |     b bool = false
-vlib/v/checker/tests/struct_unneeded_default.vv:3:13: error: unnecessary default value of '': struct fields are zeroed by default
+vlib/v/checker/tests/struct_unneeded_default.vv:3:13: warning: unnecessary default value of '': struct fields are zeroed by default
     1 | struct Test {
     2 |     n int = 0
     3 |     s string = ''
       |                ~~
     4 |     b bool = false
     5 | }
-vlib/v/checker/tests/struct_unneeded_default.vv:4:11: error: unnecessary default value `false`: struct fields are zeroed by default
+vlib/v/checker/tests/struct_unneeded_default.vv:4:11: warning: unnecessary default value `false`: struct fields are zeroed by default
     2 |     n int = 0
     3 |     s string = ''
     4 |     b bool = false
       |              ~~~~~
     5 | }
-    6 |
+    6 |

vlib/v/checker/tests/undefined_type_on_sumtype.out

@@ -1,13 +1,13 @@
-vlib/v/checker/tests/undefined_type_on_sumtype.vv:1:17: error: unknown type `Token`.
+vlib/v/checker/tests/undefined_type_on_sumtype.vv:30:4: warning: unused variable: `rx`
-Did you mean `Ok<[]Token>`?
-    1 | type ParseRes = Result<[]Token, ParseErr>
-      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~
-    2 | 
-    3 | // Token type is unknown
-vlib/v/checker/tests/undefined_type_on_sumtype.vv:30:4: error: unused variable: `rx`
    28 |     match r {
    29 |         Some<ParseRes> {
    30 |             rx := r.value
       |             ~~
    31 |         }
    32 |         None<ParseRes> {}
+vlib/v/checker/tests/undefined_type_on_sumtype.vv:1:17: error: unknown type `Token`.
+Did you mean `Ok<[]Token>`?
+    1 | type ParseRes = Result<[]Token, ParseErr>
+      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~
+    2 | 
+    3 | // Token type is unknown

vlib/v/checker/tests/union_unsafe_fields.out

@@ -1,13 +1,19 @@
-vlib/v/checker/tests/union_unsafe_fields.vv:10:9: error: reading a union field (or its address) requires `unsafe`
+vlib/v/checker/tests/union_unsafe_fields.vv:10:9: warning: reading a union field (or its address) requires `unsafe`
     8 |     mut u := Uf32{u: 3}
     9 |     u.f = 3.3 // ok
    10 |     _ := u.u
       |            ^
    11 |     return &u.f
    12 | }
-vlib/v/checker/tests/union_unsafe_fields.vv:11:12: error: reading a union field (or its address) requires `unsafe`
+vlib/v/checker/tests/union_unsafe_fields.vv:11:12: warning: reading a union field (or its address) requires `unsafe`
     9 |     u.f = 3.3 // ok
    10 |     _ := u.u
    11 |     return &u.f
       |               ^
    12 | }
+vlib/v/checker/tests/union_unsafe_fields.vv:11:9: error: fn `f` expects you to return a non reference type `f32`, but you are returning `&f32` instead
+    9 |     u.f = 3.3 // ok
+   10 |     _ := u.u
+   11 |     return &u.f
+      |            ^
+   12 | }

vlib/v/checker/tests/unsafe_c_calls_should_be_checked.out

@@ -1,11 +1,11 @@
-vlib/v/checker/tests/unsafe_c_calls_should_be_checked.vv:3:16: error: function `C.malloc` must be called from an `unsafe` block
+vlib/v/checker/tests/unsafe_c_calls_should_be_checked.vv:3:16: warning: function `C.malloc` must be called from an `unsafe` block
-    1 |
+    1 | 
     2 | fn test_c() {
     3 |     mut p := C.malloc(4)
       |                ~~~~~~~~~
     4 |     s := 'hope'
     5 |     C.memcpy(p, s.str, 4)
-vlib/v/checker/tests/unsafe_c_calls_should_be_checked.vv:5:7: error: function `C.memcpy` must be called from an `unsafe` block
+vlib/v/checker/tests/unsafe_c_calls_should_be_checked.vv:5:7: warning: function `C.memcpy` must be called from an `unsafe` block
     3 |     mut p := C.malloc(4)
     4 |     s := 'hope'
     5 |     C.memcpy(p, s.str, 4)

vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.out

@@ -1,25 +1,25 @@
-vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:4:6: error: pointer arithmetic is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:4:6: warning: pointer arithmetic is only allowed in `unsafe` blocks
     2 |     mut v := 5
     3 |     mut p := &v
     4 |     p++
       |      ~~
     5 |     p += 2
     6 |     _ := v
-vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:5:7: error: pointer arithmetic is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:5:7: warning: pointer arithmetic is only allowed in `unsafe` blocks
     3 |     mut p := &v
     4 |     p++
     5 |     p += 2
       |       ~~
     6 |     _ := v
     7 | }
-vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:11:14: error: pointer arithmetic is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:11:14: warning: pointer arithmetic is only allowed in `unsafe` blocks
     9 | fn test_ptr_infix() {
    10 |     v := 4
    11 |     mut q := &v - 1
       |              ~~~~~~
    12 |     q = q + 3
    13 |     _ := q
-vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:12:9: error: pointer arithmetic is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_pointer_arithmetic_should_be_checked.vv:12:9: warning: pointer arithmetic is only allowed in `unsafe` blocks
    10 |     v := 4
    11 |     mut q := &v - 1
    12 |     q = q + 3

vlib/v/checker/tests/unsafe_required.out

@@ -1,18 +1,18 @@
-vlib/v/checker/tests/unsafe_required.vv:8:7: error: method `S1.f` must be called from an `unsafe` block
+vlib/v/checker/tests/unsafe_required.vv:8:7: warning: method `S1.f` must be called from an `unsafe` block
     6 | fn test_funcs() {
     7 |     s := S1{}
     8 |     s.f()
       |       ~~~
     9 | }
    10 |
-vlib/v/checker/tests/unsafe_required.vv:16:7: error: pointer indexing is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_required.vv:16:7: warning: pointer indexing is only allowed in `unsafe` blocks
    14 |     _ = b[0] // OK
    15 |     c := &b
    16 |     _ = c[0]
       |          ~~~
    17 | 
    18 |     v := 4
-vlib/v/checker/tests/unsafe_required.vv:20:10: error: pointer indexing is only allowed in `unsafe` blocks
+vlib/v/checker/tests/unsafe_required.vv:20:10: warning: pointer indexing is only allowed in `unsafe` blocks
    18 |     v := 4
    19 |     p := &v
    20 |     _ = p[0]

vlib/v/checker/tests/use_deprecated_function_warning.out

@@ -1,18 +1,18 @@
-vlib/v/checker/tests/use_deprecated_function_warning.vv:12:2: error: function `xyz` has been deprecated
+vlib/v/checker/tests/use_deprecated_function_warning.vv:12:2: warning: function `xyz` has been deprecated
    10 | 
    11 | fn main() {
    12 |     xyz()
       |     ~~~~~
    13 |     abc()
    14 | }
-vlib/v/checker/tests/use_deprecated_function_warning.vv:13:2: error: function `abc` has been deprecated; use foo2 instead
+vlib/v/checker/tests/use_deprecated_function_warning.vv:13:2: warning: function `abc` has been deprecated; use foo2 instead
    11 | fn main() {
    12 |     xyz()
    13 |     abc()
       |     ~~~~~
    14 | }
    15 |
-vlib/v/checker/tests/use_deprecated_function_warning.vv:23:4: error: method `S1.m` has been deprecated; use bar instead
+vlib/v/checker/tests/use_deprecated_function_warning.vv:23:4: warning: method `S1.m` has been deprecated; use bar instead
    21 | fn method() {
    22 |     s := S1{}
    23 |     s.m()

vlib/v/checker/tests/var_duplicate_const.out

@@ -1,5 +1,12 @@
-vlib/v/checker/tests/var_duplicate_const.vv:4:5: error: duplicate of a const name `size`
+vlib/v/checker/tests/var_duplicate_const.vv:4:5: warning: duplicate of a const name `size`
-    2 |
+    2 | 
+    3 | fn main() {
+    4 |     size := 11
+      |     ~~~~
+    5 |     println(main.size)
+    6 | }
+vlib/v/checker/tests/var_duplicate_const.vv:4:5: warning: unused variable: `size`
+    2 | 
     3 | fn main() {
     4 |     size := 11
       |     ~~~~

vlib/v/checker/tests/vweb_routing_checks.out

@@ -1,11 +1,11 @@
-vlib/v/checker/tests/vweb_routing_checks.vv:20:1: error: mismatched parameters count between vweb method `App.bar` (1) and route attribute ['/bar'] (0)
+vlib/v/checker/tests/vweb_routing_checks.vv:20:1: warning: mismatched parameters count between vweb method `App.bar` (1) and route attribute ['/bar'] (0)
    18 | // segfault because path taks 0 vars and fcn takes 1 arg
    19 | ['/bar']
    20 | pub fn (mut app App) bar(a string) vweb.Result {
       | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    21 |     return app.html('works')
    22 | }
-vlib/v/checker/tests/vweb_routing_checks.vv:26:1: error: mismatched parameters count between vweb method `App.cow` (0) and route attribute ['/cow/:low'] (1)
+vlib/v/checker/tests/vweb_routing_checks.vv:26:1: warning: mismatched parameters count between vweb method `App.cow` (0) and route attribute ['/cow/:low'] (1)
    24 | // no segfault, but it shouldnt compile
    25 | ['/cow/:low']
    26 | pub fn (mut app App) cow() vweb.Result {

vlib/v/compiler_errors_test.v

@@ -78,14 +78,13 @@ fn test_all() {
 	module_tests := get_tests_in_dir(module_dir, true)
 	run_tests := get_tests_in_dir(run_dir, false)
 	skip_unused_dir_tests := get_tests_in_dir(skip_unused_dir, false)
-	// -prod is used for the parser and checker tests, so that warns are errors
 	mut tasks := Tasks{
 		vexe: vexe
 		label: 'all tests'
 	}
-	tasks.add('', parser_dir, '-prod', '.out', parser_tests, false)
+	tasks.add('', parser_dir, '', '.out', parser_tests, false)
-	tasks.add('', checker_dir, '-prod', '.out', checker_tests, false)
+	tasks.add('', checker_dir, '', '.out', checker_tests, false)
-	tasks.add('', scanner_dir, '-prod', '.out', scanner_tests, false)
+	tasks.add('', scanner_dir, '', '.out', scanner_tests, false)
 	tasks.add('', checker_dir, '-enable-globals run', '.run.out', ['globals_error.vv'],
 		false)
 	tasks.add('', global_run_dir, '-enable-globals run', '.run.out', global_run_tests,
@@ -264,8 +263,7 @@ fn (mut tasks Tasks) run() {
 			bench.ok()
 			assert true
 			if tasks.show_cmd {
-				eprintln(bstep_message(mut bench, benchmark.b_ok, '$task.cli_cmd $task.path',
+				eprintln(bstep_message(mut bench, benchmark.b_ok, '$task.cli_cmd', task.took))
-					task.took))
 			} else {
 				if github_job == '' {
 					// local mode:

vlib/v/parser/tests/closure_not_used.out

@@ -1,4 +1,4 @@
-vlib/v/parser/tests/closure_not_used.vv:3:11: error: unused variable: `a`
+vlib/v/parser/tests/closure_not_used.vv:3:11: warning: unused variable: `a`
     1 | fn my_fn() {
     2 |     a := 1
     3 |     f := fn [a] () {

vlib/v/scanner/tests/position_0_err.out

@@ -1,4 +1,4 @@
-vlib/v/scanner/tests/position_0_err.vv:1:1: error: unused variable: `i`
+vlib/v/scanner/tests/position_0_err.vv:1:1: warning: unused variable: `i`
     1 | i := 'hello'
       | ^
     2 | x := 3