* cp-tree.h (add_binding): Remove declaration.
        * name-lookup.h (supplement_binding): Declare.
        * decl.c (add_binding): Move to name-lookup.c.
        (push_local_binding): Adjust.
        (push_class_binding): Likewise.
        (set_identifier_type_value_with_scope): Likewise.
        * name-lookup.c (supplement_binding): Rename from add_binding.
        Return a bool.  Improve documentation.
        (set_namespace_binding): Adjust.
        * Make-lang.in (cp/name-lookup.o): Depend on toplev.h

From-SVN: r71144