fix: CMake include path and QString literals

- Add target_include_directories for test target to find MainWindow.h
- Replace u""_s literals with QStringLiteral() for compiler compatibility
- Fixes Jenkins build errors

Entire-Checkpoint: 0e6491fe1b1c

qt6-after/qt6-migrated-benchmark/CMakeLists.txt

@@ -66,6 +66,10 @@ add_executable(Qt6MigratedBenchmarkTest
     MainWindow.cpp
 )
 
+target_include_directories(Qt6MigratedBenchmarkTest PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
 target_link_libraries(Qt6MigratedBenchmarkTest PRIVATE
     Qt6::Core
     Qt6::Gui

qt6-after/qt6-migrated-benchmark/MainWindow.cpp

@@ -13,10 +13,10 @@ MainWindow::MainWindow(QWidget* parent)
 {
     ui->setupUi(this);
 
-    setWindowTitle(u"Qt6 Legacy Migration Benchmark"_s);
+    setWindowTitle(QStringLiteral("Qt6 Legacy Migration Benchmark"));
 
-    ui->label->setText(u"Bitte Text wie Test123 eingeben."_s);
-    ui->iconLabel->setPixmap(QPixmap(u":/icons/app.png"_s).scaled(48, 48));
+    ui->label->setText(QStringLiteral("Bitte Text wie Test123 eingeben."));
+    ui->iconLabel->setPixmap(QPixmap(QStringLiteral(":/icons/app.png")).scaled(48, 48));
 
     connect(ui->validateButton, &QPushButton::clicked, this, &MainWindow::onValidateClicked);
     connect(ui->screenButton, &QPushButton::clicked, this, &MainWindow::onScreenInfoClicked);
@@ -37,10 +37,10 @@ QString MainWindow::getScreenInfo() const
     const QScreen* screen = QApplication::primaryScreen();
     if (!screen)
     {
-        return u"Screen: unavailable"_s;
+        return QStringLiteral("Screen: unavailable");
     }
     const QRect geometry = screen->geometry();
-    return u"Screen: %1x%2"_s.arg(geometry.width()).arg(geometry.height());
+    return QStringLiteral("Screen: %1x%2").arg(geometry.width()).arg(geometry.height());
 }
 
 void MainWindow::onValidateClicked()
@@ -49,11 +49,11 @@ void MainWindow::onValidateClicked()
 
     if (validateInput(text))
     {
-        ui->resultLabel->setText(u"Match"_s);
+        ui->resultLabel->setText(QStringLiteral("Match"));
     }
     else
     {
-        ui->resultLabel->setText(u"No match"_s);
+        ui->resultLabel->setText(QStringLiteral("No match"));
     }
 }