Document the wrapper connection as returning a wrapper statement

lib/Doctrine/DBAL/Connection.php

@@ -12,7 +12,6 @@ use Doctrine\DBAL\Driver\Connection as DriverConnection;
 use Doctrine\DBAL\Driver\PingableConnection;
 use Doctrine\DBAL\Driver\ResultStatement;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
-use Doctrine\DBAL\Driver\Statement as DriverStatement;
 use Doctrine\DBAL\Exception\InvalidArgumentException;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Query\Expression\ExpressionBuilder;
@@ -851,7 +850,7 @@ class Connection implements DriverConnection
      *
      * @param string $statement The SQL statement to prepare.
      *
-     * @return DriverStatement The prepared statement.
+     * @return Statement The prepared statement.
      *
      * @throws DBALException
      */

phpstan.neon.dist

@@ -95,3 +95,8 @@ parameters:
             message: '~Method Doctrine\\DBAL\\Driver\\PDOSqlsrv\\Connection\:\:lastInsertId\(\) should return string but returns string\|false\|null\.~'
             paths:
                 - %currentWorkingDirectory%/lib/Doctrine/DBAL/Driver/PDOSqlsrv/Connection.php
+
+        -
+            message: '~Method Doctrine\\DBAL\\Portability\\Connection::prepare\(\) should return Doctrine\\DBAL\\Statement but returns Doctrine\\DBAL\\Portability\\Statement\.~'
+            paths:
+                - %currentWorkingDirectory%/lib/Doctrine/DBAL/Portability/Connection.php