Fix JsonType

Author: ondrejmirtes

src/Type/Doctrine/Descriptors/JsonType.php

@@ -8,6 +8,7 @@
 use PHPStan\Type\FloatType;
 use PHPStan\Type\IntegerType;
 use PHPStan\Type\MixedType;
+use PHPStan\Type\NeverType;
 use PHPStan\Type\NullType;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\StringType;
@@ -40,7 +41,7 @@ public function getType(): string
 
 	public function getWritableToPropertyType(): Type
 	{
-		return self::getJsonType();
+		return new NeverType();
 	}
 
 	public function getWritableToDatabaseType(): Type

tests/Rules/Doctrine/ORM/EntityColumnRuleTest.php

@@ -126,17 +126,18 @@ public function testRule(): void
 				'Property PHPStan\Rules\Doctrine\ORM\MyBrokenEntity::$invalidCarbonImmutable type mapping mismatch: database can contain Carbon\CarbonImmutable but property expects Carbon\Carbon.',
 				138,
 			],
-			[
-				'Property PHPStan\Rules\Doctrine\ORM\MyBrokenEntity::$incompatibleJsonValueObject type mapping mismatch: database can contain array|bool|float|int|JsonSerializable|stdClass|string|null but property expects PHPStan\Rules\Doctrine\ORM\EmptyObject.',
-				156,
-			],
 			[
 				'Property PHPStan\Rules\Doctrine\ORM\MyBrokenEntity::$incompatibleJsonValueObject type mapping mismatch: property can contain PHPStan\Rules\Doctrine\ORM\EmptyObject but database expects array|bool|float|int|JsonSerializable|stdClass|string|null.',
 				156,
 			],
 		]);
 	}
 
+	public function testRuleOnMyEntity(): void
+	{
+		$this->analyse([__DIR__ . '/data/MyEntity.php'], []);
+	}
+
 	public function testSuperclass(): void
 	{
 		$this->analyse([__DIR__ . '/data/MyBrokenSuperclass.php'], [