[Bug preprocessor/108900] [libcpp] cpp gives wrong line number information with a file huge number of lines

[ovidiu.panait at windriver dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108900

--- Comment #7 from Ovidiu Panait <ovidiu.panait at windriver dot com> ---
For reference, the patch proposed in comment 6 also fixes the testcase [1].

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116047#c0