debugger: create a disassembler view as main editor

"Stepping instruction wise" and "display disassembler" mode is now toggled by a
single action. This also allows to re-use F10 and F11 as keyboard shortcut.

Missing: caching of disassembler output, removal of old disassembler view.

src/plugins/debugger/stackwindow.h

@@ -40,13 +40,16 @@ QT_END_NAMESPACE
 
 namespace Debugger {
 namespace Internal {
+
+class DebuggerManager;
+class DisassemblerViewAgent;
     
 class StackWindow : public QTreeView
 {
     Q_OBJECT
 
 public:
-    StackWindow(QWidget *parent = 0);
+    StackWindow(DebuggerManager *manager, QWidget *parent = 0);
 
 signals:
     void frameActivated(int);
@@ -64,6 +67,8 @@ private:
     void contextMenuEvent(QContextMenuEvent *ev);
     void copyContentsToClipboard();
 
+    DebuggerManager *m_manager;
+    DisassemblerViewAgent *m_disassemblerAgent;
     bool m_alwaysResizeColumnsToContents;
 };