mysql-test/t/subselect.test:
  fixing problems with aliases being forced on derived tables
sql/item_func.cc:
  Fixing a bug that caused MySQL to crash on SELECT ...GROUP BY func(feilds)
sql/item_sum.cc:
  Making us compatible with ISO C++ paragrah 7.1.9.4
sql/item_sum.h:
  Making us compatible with ISO C++ paragrah 7.1.9.4
sql/sql_derived.cc:
  Fixing two more bugs in derived tables.
  
  One in EXPLAIN and another causing wrong result in opt_sum_query()
sql/sql_yacc.yy:
  Making possible INSERT from SELECT list_of_constants