[Bug c++/52964] No warning on negative array size in template instantatiation

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52964

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-13 09:50:01 UTC ---
It's at least somewhat making -fsyntax-only less useful for C++ ... I'd use
-fsyntax-only to have all errors reported and thus all invalid CUs rejected ...

We do report non-syntax errors with -fsyntax-only after all.