* Make-lang.in (cc1plus): Depend on $(GGC).
	* Makefile.in (OBJS): Add ggc-simple.o.
	(OBJDEPS): Likewise.
	* cp-tree.h (language_function): Rename members to `x_' versions;
	we now have x_named_labels, x_ctor_label, x_dtor_label,
	x_base_init_list, x_member_init_list, x_base_init_expr,
	x_current_class_ptr, x_current_class_ref, x_last_tree,
	x_last_expr_type, x_last_dtor_insn, x_last_parm_cleanup_insn, and
	x_result_rtx.
	(dtor_label, ctor_label, current_base_init_list,
	current_member_init_list, base_init_expr, current_class_ptr,
	current_class_ref, last_tree, last_expr_type): Adjust accordingly.
	* decl.c: Include ggc.h.
	(last_dtor_insn): Adjust to use x_ names.
	(last_parm_cleanup_insn): Likewise.
	(original_result_rtx): Likewise.
	(named_labels): Likewise.
	(mark_binding_level): New function.
	(mark_cp_function_context): Likewise.
	(mark_false_label_stack): Likewise.
	(lang_mark_tree): Likewise.
	(lang_cleanup_tree): Likewise.

From-SVN: r29107