lib/modules: Introduce _module.checks.*.check

Previously the .enable option was used to encode the condition as well,
which lead to some oddness:
- In order to encode an assertion, one had to invert it
- To disable a check, one had to mkForce it

By introducing a separate .check option this is solved because:
- It can be used to encode assertions
- Disabling is done separately with .enable option, whose default can be
  overridden without a mkForce

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/tests/modules/assertions/underscore-attributes.nix b/lib/tests/modules/assertions/underscore-attributes.nix
index c28c9dcd9180e..f9ee5c5787b08 100644
--- a/lib/tests/modules/assertions/underscore-attributes.nix
+++ b/lib/tests/modules/assertions/underscore-attributes.nix
@@ -1,7 +1,7 @@
 {
 
   _module.checks._test = {
-    enable = true;
+    check = false;
     message = "Assertion failed";
   };