Re: scratch/eldoc-xref-project-gnu-elpa-core-packages b1631cd: Turn Eldoc, Xref and Project into GNU ELPA :core packages

[Dmitry Gutov]

On 12.05.2020 02:17, Stefan Monnier wrote:
> IIUC a significant part of project's functionality works fine without
> xref, so you could consider that project does not Package-Require
> `xref`.

I don't know if that's true: project--files-in-directory is used a lot. 
For example, in the default impl of project-files (used to "transient" 
projects, as well as arbitrary user-defined projects that don't create 
their own implementation).

xref.el could be used without project.el, though (only the default 
xref-backend-references impl uses it, that code is old, and we could 
even make a point not to change it much in the future).