bug#68570: 29.1; recompile might not re-use project-compile's buffer

[Juri Linkov]

>> Recompiling from a non-compilation buffer has security concerns.
>> The patch that I proposed above is intended only for
>> recompiling from a compilation buffer.  It sets
>> `compilation-buffer-name-function' in the compilation buffer.
>
> I think it behaves correctly inside the compilation buffer already? At
> least it did when I tested.

Sorry, I didn't show my compilation function:

(setopt project-compilation-buffer-name-function
        (lambda (name-of-mode)
          (generate-new-buffer-name
           (project-prefixed-buffer-name name-of-mode))))

Currently 'g' doesn't create a new compilation buffer, because
'compilation--default-buffer-name' just reuses the current buffer.