[Bug preprocessor/69177] [6 Regression] Bit-packing optimization makes it too easy to have location_t >= LINE_MAP_MAX_LOCATION_WITH_COLS

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69177

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yeah, I don't consider 50000 LOC "large" and thus I find it unreasonable to
regress in diagnostic quality here.

At some point I'd rather take the bullet of making location_t grow from 32bit
to 64bit (if that helps).  It's mostly tree_decl_minimal that would regress
(others don't pack well or like tree_block could use a range).