[Bug c/67854] Missing diagnostic for passing bool to va_arg

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67854

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |manu at gcc dot gnu.org

--- Comment #6 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
In cases where we want to emit diagnostics about a token that is located in a
macro that is itself defined in system header, for example, for the NULL macro,
using the original location of the token will suppress the diagnostic (unless
-Wsystem-header). Instead, one should use:

source_location loc =
        expansion_point_location_if_in_system_header (original_location);