U.S. Federal Reserve officials continue to insist that monetary policy will stay accommodative despite inflationary pressures, weighing on the dollar and U.S. Treasuries. Large cap industrial and real estate stocks drove most of the gains, with Megaworld Corp MEG.PS adding nearly 5%, while Ayala Corp AC.PS jumped 3.7%. By Arundhati Dutta May 26 (Reuters) - Philippine shares were headed for the best day in nearly four months on Wednesday in light trading as much of the region was closed for holidays, while a weaker U.S. dollar lifted Asia's emerging currencies.