* cp-tree.h (lang_decl_flags): Remove const_memfunc and
	volatile_memfunc.  Add destructor_attr.  Adjust dummy.
	(DECL_DESTRUCTOR_P): Use destructor_attr.
	(DECL_CONST_MEMFUNC_P): Reimplement.
	(DECL_VOLATILE_MEMFUNC_P): Remove.
	* class.c (finish_struct_methods): Use CLASSTYPE_DESTRUCTORS.
	(overrides): Use DECL_DESTRUCTOR_P.
	(check_for_override): Likewise.
	* decl.c (start_function): Likewise.
	* decl2.c (grokfclassfn): Likewise.
	(check_classfn): Likewise.
	(grok_function_init): Likewise.

From-SVN: r33235