* c-lex.c (init_c_lex): Use cpp_get_callbacks to set
        callbacks.
        * c-parse.in (finish_parse): Use cpp_errors.
        (__yylex): Use return value of cpp_pop_buffer.
        * cp/lex.c (finish_parse): Use cpp_errors.
        * cp/spew.c (read_token): Use return value of cpp_pop_buffer.

From-SVN: r38982