bug#74879: 30.0.92; trusted-content-p and trusted-files cannot be used for non-file buffers

[Stefan Monnier]

>> - You should be able to get fully-featured Flymake in *scratch*
>>   with (setq-local trusted-files :all).
>>   Maybe we should do that when we setup *scratch*?
>>   Which other non-file buffers would need that?  The minibuffer?
>
> ielm comes to mind.

Thanks (fixed in `emacs-30`).


        Stefan