cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.

cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.

        * cpphash.h (struct cpp_buffer): Move saved_flags from cpp_reader.
        * cpplex.c (_cpp_lex_token): New token picks up the saved flags,
        and AVOID_LPASTE is cleared on meeting an unescaped newline.
        * cppmacro.c (builtin_macro): Set builtin flags here.
        (paste_all_tokens): Preserve AVOID_LPASTE on pasted token.
        (replace_args): Clarify intent.
        (cpp_get_token): Macro expansion tokens get the saved flags.
        Update.
        * cppmain.c (scan_buffer): Remove now-redundant print.printed
        check.

From-SVN: r39393