PR c++/17256
        * decl2.c (cp_finish_file): Fix conditions for undefined warning.
        Set TREE_NO_WARNING instead of TREE_PUBLIC.
        * pt.c (instantiate_pending_templates): Set DECL_INITIAL to avoid
        a warning on a function we didn't instantiate because of excessive
        recursion.

Co-Authored-By: James A. Morrison <phython@gcc.gnu.org>

From-SVN: r106581