Make native-comp-* aliases more robust
Make native-comp-* aliases more robust

(defvaralias A B) throws an error if A is already defined. This breaks
Doom in the event that Doom's config is loaded late (e.g. with 'doom
run'), or these variables are set elsewhere (e.g. the sandbox). I didn't
want to have to do all these checks at startup, but it seems
unavoidable.

Since Doom will only support near-enough the latest commit of Emacs 28
HEAD, I will remove these fixes at the end of May, give or take a week.

hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d