Method cleanIslands

src/test/java/com/aparapi/codegen/Diff.java:81–86

(List<Point>[][] flags, int x, int y)

   }

   static void cleanIslands(List<Point>[][] flags, int x, int y) {
      flags[x][y] = null;
      if (x > 0 && y > 0 && flags[x - 1][y - 1] != null && flags[x - 1][y - 1].size() == 1) {
         flags[x - 1][y - 1] = null;
      }
   }

   public static class DiffResult{