message: Fix incorrect function argument type in tst_expreval
diff: @@ -11,7 +11,7 @@ private slots:
  void tst_binops();
  };
  -void expect(std::variant<Error, long> res, long expected) {
  +void expect(const ExprEvalRes& res, const ExprEvalVT& expected) {
  if (auto* err = std::get_if<Error>(&res)) {
  QString errstr = "Got error: " + err->second;
  QFAIL(errstr.toStdString().c_str());
  