* TSX up 47.32 pts, or 0.4 pct, to 11,544.62 * Materials, financials lead gains * Energy shares hurt by soft U.S. retail data * Thin trade ahead of Greek elections By Jon Cook TORONTO, June 13 (Reuters) - Toronto's main stock index reversed early losses on Wednesday, as mining and financial gains offset energy losses spurred by soft U.S. retail data and worries about Europe's debt crisis ahead of this weekend's Greek elections. Global stocks fell and the dollar edged l