feat(tvix/tests): check in Nix' language test suite r/4461

This adds scaffolding code for running the Nix language test suite.

The majority of eval-okay-* tests should eventually be runnable as-is
by Tvix, however the eval-fail-* tests might not as we intend to have
more useful error messages than upstream Nix.

Change-Id: I4f3227f0889c55e4274b804a3072850fb78dd1bd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6126
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: grfn <grfn@gws.fyi>

1 files changed, 7 insertions, 0 deletions

diff --git a/tvix/eval/src/tests/nix_tests/parse-okay-mixed-nested-attrs-3.nix b/tvix/eval/src/tests/nix_tests/parse-okay-mixed-nested-attrs-3.nix
new file mode 100644
index 000000000000..45a33e480373
--- /dev/null
+++ b/tvix/eval/src/tests/nix_tests/parse-okay-mixed-nested-attrs-3.nix
@@ -0,0 +1,7 @@
+{
+    services.ssh.enable = true;
+    services.ssh = { port = 123; };
+    services = {
+        httpd.enable = true;
+    };
+}