Shares of Walt Disney Co DIS.Noscillated throughout the session ahead of its quarterly results expected after the closing bell. By Stephen Culp NEW YORK, May 13 (Reuters) - Wall Street ended sharply higher at the close of a broad rally on Thursday, bouncing back from three straight days of selling on upbeat labor market data. Recent economic data has prompted inflation fears as scarcity of both materials and workers threatens to send prices surging in the face of a demand boom.