Fix Test

Author: rcosta358

liquidjava-verifier/src/test/java/liquidjava/integration/PredicateExpressionIntegrationTest.java

@@ -148,7 +148,7 @@ void testOldVariableTracking() {
         assertTrue(oldVars.contains("x"), "Should contain x");
 
         // Test changeOldMentions method executes
-        Predicate changed = expr.changeOldMentions("x", "newX", null);
+        Predicate changed = expr.changeOldMentions("x", "newX");
         assertNotNull(changed, "Change should produce result");
 
         // Verify original expression still accessible