feat(tvix/eval): Implement comparison for lists

Lists are compared lexicographically in C++ nix as of [0], and our
updated nix test suites depend on this. This implements comparison of
list values in `Value::nix_cmp` using a very similar algorithm to what
C++ does - similarly to there, this requires passing in the VM so we can
force thunks in the list elements as we go.

[0]: 09471d2680#

Change-Id: I5d8bb07f90647a1fec83f775243e21af856afbb1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7070
Autosubmit: grfn <grfn@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI

tvix/verify-lang-tests/default.nix

@@ -53,6 +53,7 @@ let
     "eval-okay-zipAttrsWith.nix" = [ nix ];
     # Comparable lists are not in Nix 2.3
     "eval-okay-sort.nix" = [ nix ];
+    "eval-okay-compare-lists.nix" = [ nix ];
     # getAttrPos gains support for functionArgs-returned sets after 2.3
     "eval-okay-getattrpos-functionargs.nix" = [ nix ];
   };