[Bug c++/66007] [5/6 Regression] Narrowing conversion inside { } results in all zero elements in C++11 mode with -Wno-error=narrowing

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66007

--- Comment #11 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Turns out we want to check by hand errorcount at least to avoid additional
overflow diagnostic (eg, cpp0x/enum29.C)