add logging for when we show documentation in IDE services
add logging for when we show documentation in IDE services

Reviewed By: nmote

Differential Revision: D23815910

fbshipit-source-id: e26b083fe17f067cc4ea7772e7c1e4d7b712c1aa

facebook/flow,facebook/flow,mroch/flow,mroch/flow,mroch/flow,facebook/flow,mroch/flow,mroch/flow,mroch/flow,facebook/flow,facebook/flow,facebook/flow,facebook/flow,mroch/flow