* Makefile.in: Update.
	* decl.c (push_c_function_context, pop_c_function_context,
	mark_c_function_context): Rename for consistency.
	* c-objc-common.c (c_objc_common_init): Langhooks set elsewhere.
	* c-tree.h (push_c_function_context, pop_c_function_context,
	mark_c_function_context): Rename for consistency.
	* c-lang.c (LANG_HOOKS_FUNCTION_ENTER_NESTED,
	LANG_HOOKS_FUNCTION_LEAVE_NESTED, LANG_HOOKS_FUNCTION_MARK): Redefine.
	* function.c (init_lang_status, save_lang_status,
	restore_lang_status, mark_lang_status, free_lang_status):
	Move to langhooks.h.
	(push_function_context_to, pop_function_context_from,
	free_after_parsing, prepare_function_start, ggc_mark_struct_function):
	Update.
	* function.h (init_lang_status, save_lang_status,
	restore_lang_status, mark_lang_status, free_lang_status):
	Move to langhooks.h.
	* langhooks-def.h (LANG_HOOKS_FUNCTION_INIT,
	LANG_HOOKS_FUNCTION_FREE, LANG_HOOKS_FUNCTION_ENTER_NESTED,
	LANG_HOOKS_FUNCTION_LEAVE_NESTED, LANG_HOOKS_FUNCTION_MARK,
	LANG_HOOKS_FUNCTION_INITIALIZER): New.
	(LANG_HOOKS_INITIALIZER): Update.
	(lhd_do_nothing_f): New.
	* langhooks.h (struct lang_hooks_for_functions): New.
	(struct lang_hooks): New hooks.
	* langhooks.c (lhd_do_nothing_f): New.
cp:
	* cp-lang.c (LANG_HOOKS_FUNCTION_INIT,
	LANG_HOOKS_FUNCTION_FREE, LANG_HOOKS_FUNCTION_MARK): Redefine.
	* cp-tree.h (cxx_push_function_context, cxx_pop_function_context,
	cxx_mark_function_context): New.
	* decl.c (push_cp_function_context, pop_cp_function_context,
	mark_cp_function_context): Rename for consistency.
	(cxx_init_decl_processing): Don't set old hooks.
objc:
	* objc-lang.c (LANG_HOOKS_FUNCTION_ENTER_NESTED,
	LANG_HOOKS_FUNCTION_LEAVE_NESTED, LANG_HOOKS_FUNCTION_MARK): Redefine.

From-SVN: r52551