Brian Friel’s Aristocrats is often described as “Chekhovian,” and, indeed, the parallels to The Cherry Orchard and Three Sisters are unmistakable: three very different sisters of the O’Donnell family, along with their relations and hangers-on, navigate a collapsing estate, literally and figuratively, and grapple with a questionable family legacy and sense of purpose. Aristocrats is the second installment of the Irish Rep’s Friel Project, following an exquisite production of Translations.