CANADA STOCKS-TSX steady as oil shares slip, gold miners gain

* TSX up 19.30 points, or 0.13 percent, at 15,156.48 * Eight of the 10 main index sectors advance * Potash Corp among top decliners By John Tilak TORONTO, July 9 (Reuters) - Canada's main stock index was little changed on Wednesday as shares of energy producers slipped with the oil price, while the gold-mining sector followed the bullion price higher. The market awaited release later on Wednesday of minutes from the U.S. Federal Reserve's June policy meeting to see if they m