Require explicit inequality as well as equality operators on evalvalues

src/UserData/UserDataCollections/UserDataCollectionValue.hpp

@@ -60,6 +60,10 @@ namespace Porygon::UserData {
             return b->GetHashCode() == _hash;
         }
 
+        bool operator!=(const EvalValue *b) const override {
+            return !operator==(b);
+        }
+
         [[nodiscard]] EvalValue* Clone() const final{
             return new UserDataCollectionValue(_type, _helper, _hash);
         }