Stop using json_array type on the mapping

Since it was deprecated.

lib/Doctrine/DBAL/Platforms/MySQL57Platform.php

@@ -21,6 +21,7 @@ namespace Doctrine\DBAL\Platforms;
 
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\TableDiff;
+use Doctrine\DBAL\Types\Type;
 
 /**
  * Provides the behavior, features and SQL dialect of the MySQL 5.7 (5.7.9 GA) database platform.
@@ -89,6 +90,6 @@ class MySQL57Platform extends MySqlPlatform
     {
         parent::initializeDoctrineTypeMappings();
 
-        $this->doctrineTypeMapping['json'] = 'json_array';
+        $this->doctrineTypeMapping['json'] = Type::JSON;
     }
 }

lib/Doctrine/DBAL/Platforms/PostgreSQL92Platform.php

@@ -19,6 +19,8 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Types\Type;
+
 /**
  * Provides the behavior, features and SQL dialect of the PostgreSQL 9.2 database platform.
  *
@@ -70,7 +72,8 @@ class PostgreSQL92Platform extends PostgreSQL91Platform
     protected function initializeDoctrineTypeMappings()
     {
         parent::initializeDoctrineTypeMappings();
-        $this->doctrineTypeMapping['json'] = 'json_array';
+
+        $this->doctrineTypeMapping['json'] = Type::JSON;
     }
 
     /**

lib/Doctrine/DBAL/Platforms/PostgreSQL94Platform.php

@@ -19,6 +19,8 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Types\Type;
+
 /**
  * Provides the behavior, features and SQL dialect of the PostgreSQL 9.4 database platform.
  *
@@ -54,6 +56,7 @@ class PostgreSQL94Platform extends PostgreSQL92Platform
     protected function initializeDoctrineTypeMappings()
     {
         parent::initializeDoctrineTypeMappings();
-        $this->doctrineTypeMapping['jsonb'] = 'json_array';
+
+        $this->doctrineTypeMapping['jsonb'] = Type::JSON;
     }
 }

tests/Doctrine/Tests/DBAL/Platforms/MySQL57PlatformTest.php

@@ -3,6 +3,7 @@
 namespace Doctrine\Tests\DBAL\Platforms;
 
 use Doctrine\DBAL\Platforms\MySQL57Platform;
+use Doctrine\DBAL\Types\Type;
 
 class MySQL57PlatformTest extends AbstractMySQLPlatformTestCase
 {
@@ -27,7 +28,7 @@ class MySQL57PlatformTest extends AbstractMySQLPlatformTestCase
     public function testInitializesJsonTypeMapping()
     {
         $this->assertTrue($this->_platform->hasDoctrineTypeMappingFor('json'));
-        $this->assertSame('json_array', $this->_platform->getDoctrineTypeMapping('json'));
+        $this->assertSame(Type::JSON, $this->_platform->getDoctrineTypeMapping('json'));
     }
 
     /**

tests/Doctrine/Tests/DBAL/Platforms/PostgreSQL92PlatformTest.php

@@ -3,6 +3,7 @@
 namespace Doctrine\Tests\DBAL\Platforms;
 
 use Doctrine\DBAL\Platforms\PostgreSQL92Platform;
+use Doctrine\DBAL\Types\Type;
 
 class PostgreSQL92PlatformTest extends AbstractPostgreSqlPlatformTestCase
 {
@@ -54,7 +55,7 @@ class PostgreSQL92PlatformTest extends AbstractPostgreSqlPlatformTestCase
     public function testInitializesJsonTypeMapping()
     {
         $this->assertTrue($this->_platform->hasDoctrineTypeMappingFor('json'));
-        $this->assertEquals('json_array', $this->_platform->getDoctrineTypeMapping('json'));
+        $this->assertEquals(Type::JSON, $this->_platform->getDoctrineTypeMapping('json'));
     }
 
     /**

tests/Doctrine/Tests/DBAL/Platforms/PostgreSQL94PlatformTest.php

@@ -3,6 +3,7 @@
 namespace Doctrine\Tests\DBAL\Platforms;
 
 use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
+use Doctrine\DBAL\Types\Type;
 
 class PostgreSQL94PlatformTest extends PostgreSQL92PlatformTest
 {
@@ -25,6 +26,6 @@ class PostgreSQL94PlatformTest extends PostgreSQL92PlatformTest
     {
         parent::testInitializesJsonTypeMapping();
         $this->assertTrue($this->_platform->hasDoctrineTypeMappingFor('jsonb'));
-        $this->assertEquals('json_array', $this->_platform->getDoctrineTypeMapping('jsonb'));
+        $this->assertEquals(Type::JSON, $this->_platform->getDoctrineTypeMapping('jsonb'));
     }
 }