MemoryWidget: Add symbols and Notes.

Add option to hide them.
Add box to search.
Add ability to edit data symbols and notes in MemoryViewWidget.

Source/Core/DolphinQt/Debugger/MemoryViewWidget.h

@@ -24,6 +24,8 @@ class CPUThreadGuard;
 class System;
 }  // namespace Core
 
+class PPCSymbolDB;
+
 // Captures direct editing of the table.
 class TableEditDelegate : public QStyledItemDelegate
 {
@@ -76,14 +78,23 @@ public:
     Full,
     Addresses,
     Values,
+    Symbols,
     Auto,
   };
 
+  enum class EditSymbolType
+  {
+    AddNote,
+    EditNote,
+    EditRegion,
+  };
+
   explicit MemoryViewWidget(Core::System& system, QWidget* parent = nullptr);
 
   void CreateTable();
   void UpdateDispatcher(UpdateType type = UpdateType::Addresses);
   void Update();
+  void UpdateSymbols();
   void UpdateOnFrameEnd();
   void GetValues();
   void UpdateFont(const QFont& font);
@@ -98,6 +109,7 @@ public:
   void SetBPType(BPType type);
   void SetAddress(u32 address);
   void SetFocus() const;
+  void ShowSymbols(bool enable);
 
   void SetBPLoggingEnabled(bool enabled);
 
@@ -108,6 +120,7 @@ signals:
   void ActivateSearch();
 
 private:
+  void OnEditSymbol(EditSymbolType type, u32 addr);
   void OnContextMenu(const QPoint& pos);
   void OnCopyAddress(u32 addr);
   void OnCopyHex(u32 addr);
@@ -116,9 +129,11 @@ private:
   void UpdateColumns();
   void ScrollbarActionTriggered(int action);
   void ScrollbarSliderReleased();
+
   std::optional<QString> ValueToString(const Core::CPUThreadGuard& guard, u32 address, Type type);
 
   Core::System& m_system;
+  PPCSymbolDB& m_ppc_symbol_db;
 
   MemoryViewTable* m_table;
   QScrollBar* m_scrollbar;
@@ -137,6 +152,7 @@ private:
   int m_alignment = 16;
   int m_data_columns;
   bool m_dual_view = false;
+  bool m_show_symbols = true;
   std::mutex m_updating;
   QColor m_highlight_color = QColor(120, 255, 255, 100);