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);
         }

src/UserData/UserDataValue.hpp

@@ -37,6 +37,10 @@ namespace Porygon::UserData {
             return _obj == ((UserDataValue *) b)->_obj;
         }
 
+        bool operator!=(const EvalValue *b) const override {
+            return !operator==(b);
+        }
+
         [[nodiscard]]
         inline Evaluation::EvalValue* Clone() const final {
             auto ud = _userData->Get();
@@ -78,6 +82,7 @@ namespace Porygon::UserData {
         EvalValue* Cast(shared_ptr<const ScriptType> castType) const final{
             return _userData->Get()->Cast(_obj, castType.get());
         }
+
     };
 }