Unable to mock Memcached class in version 2.2.0 of extension.

[taylorotwell]

See issue here: sebastianbergmann/phpunit-mock-objects#192

Essentially, it does not appear the extension is providing the correct information to the Reflection API (for the get method at least), therefore it unable to be mocked by both PHPUnit and Mockery.

Declaration of Mock_Memcached_f86666d0::get() should be compatible with Memcached::get($key, $cache_cb = NULL, &$cas_token = NULL, &$udf_flags = NULL)

A simple $this->getMock('Memcached') in PHPUnit will demonstrate the issue.

[mkoppanen]

Duplicate of #126