[PHPUnit] Moved code that creates an array that is passed to the TestRunner object into the createArguments() method.
[PHPUnit] Moved code that creates an array that is passed to the TestRunner object into the createArguments() method.

piece/stagehand-testrunner,piece/stagehand-testrunner,iteman/stagehand-testrunner,iteman/stagehand-testrunner