Pass for phutil test that was expected to fail and skip

Summary:
I just hope that we will not create ArcanistPhutilTestCaseTestCaseTestCase.

Also fix a copy/paste error (@edward's this time).

Test Plan: arc unit

Reviewers: epriestley

Reviewed By: epriestley

CC: edward, aran, Korvin

Differential Revision: https://secure.phabricator.com/D2692