Fixed type hints in DockBlocks

As the explanatory description says: "The name or position of the parameter."

lib/Doctrine/DBAL/Statement.php

@@ -97,7 +97,7 @@ class Statement implements \IteratorAggregate, DriverStatement
      * type and the value undergoes the conversion routines of the mapping type before
      * being bound.
      *
-     * @param string $name  The name or position of the parameter.
+     * @param string|int $name  The name or position of the parameter.
      * @param mixed      $value The value of the parameter.
      * @param mixed      $type  Either a PDO binding type or a DBAL mapping type name or instance.
      *
@@ -129,7 +129,7 @@ class Statement implements \IteratorAggregate, DriverStatement
      *
      * Binding a parameter by reference does not support DBAL mapping types.
      *
-     * @param string   $name   The name or position of the parameter.
+     * @param string|int $name   The name or position of the parameter.
      * @param mixed      $var    The reference to the variable to bind.
      * @param int        $type   The PDO binding type.
      * @param int|null   $length Must be specified when using an OUT bind