Memoize Working Directory for Test Run Strategy
Memoize Working Directory for Test Run Strategy

Summary: Memoizes the test strategy path, so that the same path can be used in multiple places in the class.

Reviewed By: antiarchit

Differential Revision: D5245162

fbshipit-source-id: cdb145fb81fd76ba2bbcce30c3a1459229f986fe

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl