* decl.c (get_atexit_fn_ptr_type): New function.
(get_atexit_node): Use it.
(start_cleanup_fn): Likewise.
(register_dtor_fn): Use the object's destructor, instead of a
separate cleanup function, where possible.
* cp-tree.h (CPTI_ATEXIT_FN_PTR_TYPE): New enumerator.
(atexit_fn_ptr_type_node): New macro.
* decl2.c (build_cleanup): Use build_address.
* g++.dg/init/cleanup3.C: New test.
From-SVN: r125253
