Changed `sameFile()` to use the NIO `File.isSameFile()` method
Changed `sameFile()` to use the NIO `File.isSameFile()` method

ceylon/ceylon-common,ceylon/ceylon-common,jvasileff/ceylon-common,jvasileff/ceylon-common,jvasileff/ceylon-common,ceylon/ceylon-common