CS: blank line between different use statement types

tests/unit/DocBlock/Tags/InvalidTagTest.php

@@ -8,6 +8,7 @@ use Exception;
 use InvalidArgumentException;
 use PHPUnit\Framework\TestCase;
 use Throwable;
+
 use function fopen;
 use function serialize;
 use function unserialize;

tests/unit/Exception/PcreExceptionTest.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace phpDocumentor\Reflection\Exception;
 
 use PHPUnit\Framework\TestCase;
+
 use const PREG_BACKTRACK_LIMIT_ERROR;
 use const PREG_BAD_UTF8_ERROR;
 use const PREG_BAD_UTF8_OFFSET_ERROR;

tests/unit/PregSplitTest.php

@@ -6,7 +6,9 @@ namespace phpDocumentor\Reflection;
 
 use phpDocumentor\Reflection\Exception\PcreException;
 use PHPUnit\Framework\TestCase;
+
 use function set_error_handler;
+
 use const E_WARNING;
 
 final class PregSplitTest extends TestCase