Add support for explicitly specifying tests as part of a buildLisp
program or library.
Change-Id: I733213c1618f0fa60f645465560bce0522641efd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1481
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Adds a Nix function to build a Lisp library out of a specified set of
Nix files. All files are combined into a single FASL.
This is by design only compatible with SBCL (for now).