qt: Add missing override specifiers where applicable

src/yuzu/about_dialog.h

@@ -16,7 +16,7 @@ class AboutDialog : public QDialog {
 
 public:
     explicit AboutDialog(QWidget* parent);
-    ~AboutDialog();
+    ~AboutDialog() override;
 
 private:
     std::unique_ptr<Ui::AboutDialog> ui;

src/yuzu/bootmanager.h

@@ -106,7 +106,7 @@ class GRenderWindow : public QWidget, public EmuWindow {
 
 public:
     GRenderWindow(QWidget* parent, EmuThread* emu_thread);
-    ~GRenderWindow();
+    ~GRenderWindow() override;
 
     // EmuWindow implementation
     void SwapBuffers() override;

src/yuzu/debugger/graphics/graphics_surface.h

@@ -22,11 +22,11 @@ class SurfacePicture : public QLabel {
 public:
     explicit SurfacePicture(QWidget* parent = nullptr,
                             GraphicsSurfaceWidget* surface_widget = nullptr);
-    ~SurfacePicture();
+    ~SurfacePicture() override;
 
 protected slots:
-    virtual void mouseMoveEvent(QMouseEvent* event);
-    virtual void mousePressEvent(QMouseEvent* event);
+    void mouseMoveEvent(QMouseEvent* event) override;
+    void mousePressEvent(QMouseEvent* event) override;
 
 private:
     GraphicsSurfaceWidget* surface_widget;

src/yuzu/debugger/wait_tree.h

@@ -25,11 +25,13 @@ class WaitTreeThread;
 class WaitTreeItem : public QObject {
     Q_OBJECT
 public:
+    ~WaitTreeItem() override;
+
     virtual bool IsExpandable() const;
     virtual std::vector<std::unique_ptr<WaitTreeItem>> GetChildren() const;
     virtual QString GetText() const = 0;
     virtual QColor GetColor() const;
-    virtual ~WaitTreeItem();
+
     void Expand();
     WaitTreeItem* Parent() const;
     const std::vector<std::unique_ptr<WaitTreeItem>>& Children() const;

src/yuzu/main.h

@@ -43,7 +43,7 @@ public:
     void filterBarSetChecked(bool state);
     void UpdateUITheme();
     GMainWindow();
-    ~GMainWindow();
+    ~GMainWindow() override;
 
 signals: