extend pragma(msg) with writing to file

[kdevel]

On Friday, 7 October 2022 at 16:22:22 UTC, Andrey Zherikov wrote:
[...]
> We already have read compile-time access to a system by 
> [`import("foo.txt")`](https://dlang.org/spec/expression.html#import_expressions).

Quote: "Note that by default an import expression will not 
compile unless one or more paths are passed via the -J switch. 
This tells the compiler where it should look for the files to 
import. This is a security feature."

> How does write access change the risk in principle?

Nice try.