[Bug bootstrap/61679] build fails with G++ 4.5.1 - prototype for hash_table does not match any in class

[tsaunders at mozilla dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61679

--- Comment #6 from Trevor Saunders <tsaunders at mozilla dot com> ---
> --- Comment #4 from Gary Funck <gary at intrepid dot com> ---
> Created attachment 33076
>   --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33076&action=edit
> make log after trying patch

thanks! I think the attached patch should fix all of those issues, would
you mind testing it?

Trev