Memory plays seldom take the form of farce, but David Henry Hwang certainly had plenty of material for one when he wrote “Yellow Face” roughly two decades ago. Mr. Hwang was already a celebrated playwright at the time, having won a Tony and being named a Pulitzer finalist for his Broadway debut, 1988’s “M. Butterfly,” which drew on both the Puccini opera and a real-life relationship between a French diplomat and a Chinese opera singer to explore cultural conflicts, racial stereotypes, and gender identity.