json2: minor fixes

Author: medvednikov

vlib/json2/tests/decode_escaped_string_test.v

@@ -16,7 +16,7 @@ fn test_surrogate() {
 }
 
 fn test_invalid_surrogate() {
-	if x := json2.decode[string](r'"\ud83d"') {
+	if _ := json2.decode[string](r'"\ud83d"') {
 		assert false
 	} else {
 		if err is json2.JsonDecodeError {
@@ -26,7 +26,7 @@ fn test_invalid_surrogate() {
 		}
 	}
 
-	if x := json2.decode[string](r'"\ud83d\n\n\n\n"') {
+	if _ := json2.decode[string](r'"\ud83d\n\n\n\n"') {
 		assert false
 	} else {
 		if err is json2.JsonDecodeError {
@@ -36,7 +36,7 @@ fn test_invalid_surrogate() {
 		}
 	}
 
-	if x := json2.decode[string](r'"\ud83d\ud83d"') {
+	if _ := json2.decode[string](r'"\ud83d\ud83d"') {
 		assert false
 	} else {
 		if err is json2.JsonDecodeError {
@@ -46,7 +46,7 @@ fn test_invalid_surrogate() {
 		}
 	}
 
-	if x := json2.decode[string](r'"\ude00\ud83d"') {
+	if _ := json2.decode[string](r'"\ude00\ud83d"') {
 		assert false
 	} else {
 		if err is json2.JsonDecodeError {

vlib/json2/tests/decode_map_of_map_test.v

@@ -5,7 +5,7 @@ struct CrossVerifyResult {
 }
 
 fn test_main() {
-	x := json2.decode[CrossVerifyResult]('') or {
+	_ := json2.decode[CrossVerifyResult]('') or {
 		assert err.msg().contains('1:1: Invalid json: empty string')
 		return
 	}

vlib/json2/tests/decode_number_and_boolean_test.v

@@ -98,22 +98,22 @@ fn test_number() {
 	assert json.decode[i8]('127')! == 127
 	assert json.decode[i8]('-128')! == -128
 
-	if x := json.decode[i8]('128') {
+	if _ := json.decode[i8]('128') {
 		assert false
 	}
-	if x := json.decode[i8]('130') {
+	if _ := json.decode[i8]('130') {
 		assert false
 	}
-	if x := json.decode[i8]('1000') {
+	if _ := json.decode[i8]('1000') {
 		assert false
 	}
-	if x := json.decode[i8]('-129') {
+	if _ := json.decode[i8]('-129') {
 		assert false
 	}
-	if x := json.decode[i8]('-130') {
+	if _ := json.decode[i8]('-130') {
 		assert false
 	}
-	if x := json.decode[i8]('-1000') {
+	if _ := json.decode[i8]('-1000') {
 		assert false
 	}
 }