Fix incorrect exception thrown from SQLAnywhere16Platform

UPGRADE.md

+# Upgrade to 2.8
+
+## Corrected exception thrown by ``Doctrine\DBAL\Platforms\SQLAnywhere16Platform::getAdvancedIndexOptionsSQL()``
+
+This method now throws SPL ``UnexpectedValueException`` instead of accidentally throwing ``Doctrine\Common\Proxy\Exception\UnexpectedValueException``.
+
 # Upgrade to 2.7
 
 ## Doctrine\DBAL\Platforms\AbstractPlatform::DATE_INTERVAL_UNIT_* constants deprecated

lib/Doctrine/DBAL/Platforms/SQLAnywhere16Platform.php

@@ -19,8 +19,8 @@
 
 namespace Doctrine\DBAL\Platforms;
 
-use Doctrine\Common\Proxy\Exception\UnexpectedValueException;
 use Doctrine\DBAL\Schema\Index;
+use UnexpectedValueException;
 
 /**
  * The SQLAnywhere16Platform provides the behavior, features and SQL dialect of the