More C type errors by default for GCC 14

[Eli Zaretskii]

> Cc: Jonathan Wakely <jwakely.gcc@gmail.com>, gcc@gcc.gnu.org
> Date: Tue, 09 May 2023 18:38:05 +0200
> From: Arsen Arsenović via Gcc <gcc@gcc.gnu.org>
> 
> You're actively dismissing the benefit.

Which benefit?

No one has yet explained why a warning about this is not enough, and
why it must be made an error.  Florian's initial post doesn't explain
that, and none of the followups did, although questions about whether
a warning is not already sufficient were asked.

That's a simple question, and unless answered with valid arguments,
the proposal cannot make sense to me, at least.