Fix bug in DropSchemaSQLCollector dropping tables before sequences which can...

Fix bug in DropSchemaSQLCollector dropping tables before sequences which can cause constraint errors

lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php

@@ -137,6 +137,6 @@ class DropSchemaSqlCollector implements Visitor
      */
     public function getQueries()
     {
-        return array_merge($this->_constraints, $this->_tables, $this->_sequences);
+        return array_merge($this->_constraints, $this->_sequences, $this->_tables);
     }
 }

tests/Doctrine/Tests/DBAL/Schema/Visitor/SchemaSqlCollectorTest.php

@@ -53,7 +53,7 @@ class SchemaSqlCollectorTest extends \PHPUnit_Framework_TestCase
 
         $sql = $schema->toDropSql($platformMock);
 
-        $this->assertEquals(array("fk", "tbl", "tbl", "seq"), $sql);
+        $this->assertEquals(array("fk", "seq", "tbl", "tbl"), $sql);
     }
 
     /**