tests: fix some warnings in preparation for `-W test-self`

vlib/strconv/atoi_test.v

@@ -17,11 +17,13 @@ fn test_atoi() {
 		assert false
 	}
 	if x := strconv.atoi('str') {
+		println(x)
 		assert false
 	} else {
 		assert true
 	}
 	if x := strconv.atoi('') {
+		println(x)
 		assert false
 	} else {
 		assert true

vlib/sync/atomic2/atomic.v

@@ -1,7 +1,5 @@
 module atomic2
 
-import sync
-
 /*
 Implements the atomic operations. For now TCC does not support
 the atomic versions on nix so it uses locks to simulate the same behavor.

vlib/sync/channel_select_5_test.v

@@ -35,7 +35,6 @@ fn test_select() {
 	go do_send_int2(chi)
 	go do_send_int3(chi)
 	mut sum := i64(0)
-	mut rl := i64(0)
 	mut sl := i64(0)
 	for _ in 0 .. 60000 + recch.cap {
 		select {

vlib/v/tests/differently_named_structs_test.v

@@ -1,16 +1,30 @@
+struct DB {
+	name string
+}
 
-struct DB { name string }
-struct DxB { name string }
-struct DeclExprA { name string }
-struct AStructWithAVeryLongName { name string }
+struct DxB {
+	name string
+}
+
+struct DeclExprA {
+	name string
+}
+
+struct AStructWithAVeryLongName {
+	name string
+}
 
 fn test_struct_names_can_be_used_for_creating_them() {
 	a := DB{}
+	println(a)
 	assert true
 	b := DxB{}
+	println(b)
 	assert true
 	c := DeclExprA{}
+	println(c)
 	assert true
 	d := AStructWithAVeryLongName{}
+	println(d)
 	assert true
 }

vlib/v/tests/match_test.v

@@ -11,19 +11,20 @@ pub fn (c Color) str() string {
 fn test_match_integers() {
 	mut a := 3
 	mut b := 0
-	match a
-	2 {
-		println('two')
-	}
-	3 {
-		println('three')
-		b = 3
-	}
-	4 {
-		println('four')
-	}
-	else {
-		println('???')
+	match a {
+		2 {
+			println('two')
+		}
+		3 {
+			println('three')
+			b = 3
+		}
+		4 {
+			println('four')
+		}
+		else {
+			println('???')
+		}
 	}
 	assert b == 3
 	assert match 2 {
@@ -37,6 +38,7 @@ fn test_match_integers() {
 		else { 5 }
 	} == 5
 	assert match 1 {
+		2 { 0 }
 		else { 5 }
 	} == 5
 	a = 0
@@ -68,6 +70,7 @@ fn test_match_integers() {
 	assert a == 6
 	a = 0
 	match 1 {
+		0 {}
 		else { a = -2 }
 	}
 	assert a == -2
@@ -225,9 +228,15 @@ fn test_match_sumtype_multiple_types() {
 }
 
 fn test_sub_expression() {
-	b := false && match 1 {0 {true} else {true}}
+	b := false && match 1 {
+		0 { true }
+		else { true }
+	}
 	assert !b
-	c := true || match 1 {0 {false} else {false}}
+	c := true || match 1 {
+		0 { false }
+		else { false }
+	}
 	assert c
 }
 
@@ -270,6 +279,9 @@ fn test_sumtype_with_array() {
 }
 
 fn test_match_expression_add() {
-	a := match true { true {1} false {2} } + 3
+	a := match true {
+		true { 1 }
+		false { 2 }
+	} + 3
 	assert a == 4
 }

vlib/v/tests/typeof_simple_types_test.v

@@ -14,35 +14,35 @@ type MySumType = Abc | Xyz
 
 type AnotherSumType = XxYyZz | int
 
-type SuperSumType = MySumType | AnotherSumType | string
+type SuperSumType = AnotherSumType | MySumType | string
 
 fn test_typeof_for_builtin_int_types() {
-	assert typeof(i8(1)) == 'i8'
-	assert typeof(i16(1)) == 'i16'
-	assert typeof(int(1)) == 'int'
-	// assert typeof(1) == 'int_literal'
-	assert typeof(i64(1)) == 'i64'
-	assert typeof(byte(1)) == 'byte'
-	assert typeof(u16(1)) == 'u16'
-	assert typeof(u32(1)) == 'u32'
-	assert typeof(u64(1)) == 'u64'
+	assert typeof(i8(1)).name == 'i8'
+	assert typeof(i16(1)).name == 'i16'
+	assert typeof(int(1)).name == 'int'
+	// assert typeof(1).name == 'int_literal'
+	assert typeof(i64(1)).name == 'i64'
+	assert typeof(byte(1)).name == 'byte'
+	assert typeof(u16(1)).name == 'u16'
+	assert typeof(u32(1)).name == 'u32'
+	assert typeof(u64(1)).name == 'u64'
 }
 
 fn test_typeof_for_builtin_float_types() {
-	assert typeof(f32(1.0)) == 'f32'
-	assert typeof(f64(1.0)) == 'f64'
-	// assert typeof(1.0) == 'float_literal'
+	assert typeof(f32(1.0)).name == 'f32'
+	assert typeof(f64(1.0)).name == 'f64'
+	// assert typeof(1.0).name == 'float_literal'
 }
 
 fn test_typeof_for_builtin_string_type() {
-	assert typeof('abc') == 'string'
-	assert typeof('/v/nv/vlib/v/tests/typeof_simple_types_test.v') == 'string'
-	assert typeof('22') == 'string'
+	assert typeof('abc').name == 'string'
+	assert typeof('/v/nv/vlib/v/tests/typeof_simple_types_test.v').name == 'string'
+	assert typeof('22').name == 'string'
 }
 
 fn test_typeof_for_structs() {
-	assert typeof(Abc{}) == 'Abc'
-	assert typeof(Xyz{}) == 'Xyz'
+	assert typeof(Abc{}).name == 'Abc'
+	assert typeof(Xyz{}).name == 'Xyz'
 }
 
 //

vlib/x/json2/json2_test.v

@@ -86,7 +86,7 @@ fn test_character_unescape() {
 	assert lines['newline'].str() == 'new\nline'
 	assert lines['tab'].str() == '\ttab'
 	assert lines['backslash'].str() == 'back\\slash'
-	assert lines['quotes'].str() == '\"quotes\"'
+	assert lines['quotes'].str() == '"quotes"'
 	assert lines['slash'].str() == '/dev/null'
 }
 
@@ -169,6 +169,7 @@ fn test_parse_user() {
 		assert false
 		User2{}
 	}
+	println(u2)
 	u := json2.decode<User>(s) or {
 		assert false
 		User{}
@@ -249,14 +250,15 @@ fn test_struct_in_struct() {
 fn test_encode_map() {
 	expected := '{"one":1,"two":2,"three":3,"four":4}'
 	numbers := {
-		'one': json2.Any(1)
-		'two': json2.Any(2)
+		'one':   json2.Any(1)
+		'two':   json2.Any(2)
 		'three': json2.Any(3)
-		'four': json2.Any(4)
+		'four':  json2.Any(4)
 	}
 	out := numbers.str()
 	assert out == expected
 }
+
 /*
 fn test_parse_map() {
 	expected := {