* cp-tree.h: Add access_protected_virtual_node.
	* class.c (init_class_processing): Initialize it.
	* decl.c (xref_basetypes): Use it.
	* parse.y (base_class_access_list): Likewise.
	* Make-lang.in (DEMANGLER_PROG): Add $(exeext).
	(c++.install-common): Install c++filt.

From-SVN: r17894