After merge fix


mysql-test/r/func_time.result:
  After merge fix
mysql-test/r/func_concat.result:
  After merge fix
mysql-test/r/cast.result:
  After merge fix
sql/item_cmpfunc.h:
  After merge fix
sql/item_cmpfunc.cc:
  After merge fix
sql/field.cc:
  After merge fix