* decl.c (grokfndecl): Set TREE_NOTHROW if TYPE_NOTHROW_P.

        * except.c (dtor_nothrow): New fn.
        (do_pop_exception): Use it.  Take type parm.
        (push_eh_cleanup): Take type parm.
        (expand_start_catch_block): Pass it.
        (build_eh_type_type_ref): Accept null type.

From-SVN: r32510