[Bug lto/70629] 176.gcc fails to build with -O0 -flto with undefined reference to is_reserved_word

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70629

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69197#c4 also.