fix some assertion and CS in schema manager functional tests

tests/Doctrine/Tests/DBAL/Functional/Schema/OracleSchemaManagerTest.php

@@ -98,8 +98,8 @@ class OracleSchemaManagerTest extends SchemaManagerFunctionalTestCase
         $sm->dropAndCreateDatabase('c##test_create_database');
 
         $databases = $this->_sm->listDatabases();
-        $databases = \array_map('strtolower', $databases);
+        $databases = array_map('strtolower', $databases);
 
-        $this->assertEquals(true, \in_array('c##test_create_database', $databases));
+        $this->assertContains('c##test_create_database', $databases);
     }
 }

tests/Doctrine/Tests/DBAL/Functional/Schema/SchemaManagerFunctionalTestCase.php

@@ -89,9 +89,9 @@ class SchemaManagerFunctionalTestCase extends \Doctrine\Tests\DbalFunctionalTest
         $this->_sm->dropAndCreateDatabase('test_create_database');
         $databases = $this->_sm->listDatabases();
 
-        $databases = \array_map('strtolower', $databases);
+        $databases = array_map('strtolower', $databases);
 
-        $this->assertEquals(true, \in_array('test_create_database', $databases));
+        $this->assertContains('test_create_database', $databases);
     }
 
     public function testListTables()