exceed unsigned long limit.


include/config-win.h:
  implementation of ULL macro for Windows
include/my_global.h:
  ULL macro defined: we need this macro because ULL qualifier is not defined 
  on systems withoug unsigned long long
sql/item_func.cc:
  new ULL macro caused conflict with class for user level lock ULL.
  ULL renamed to User_level_lock
sql/item_func.h:
  ULL -> User_level_lock
sql/mysql_priv.h:
  merge error fixed: LL defined in my_global.h
sql/mysqld.cc:
  ULL macro used for long long constants to fix compilation failure on gcc 3.*
sql/sql_class.h:
  ULL renamed to User_level_lock