Debugger: Introduce a DebuggerRunTool

The DebuggerEngine cannot be promoted directly as in case of
combined debugging we have three DebuggerEngine at the same
time, but the base RunControl is only (and should be) able to
handle one tool. So introduce a DebuggerRunTool base-RunTool
derived class that's only a thin wrapper on the (master)
DebuggerEngine.

Change-Id: I948833f4cff68c7d6e3dfa43b28328b862d6ae81
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/debugger/debuggerruncontrol.h

@@ -30,16 +30,12 @@
 
 #include <projectexplorer/runconfiguration.h>
 
-#include <functional>
-
 namespace Debugger {
 
 class RemoteSetupResult;
 class DebuggerStartParameters;
 class DebuggerRunControl;
 
-namespace Internal { class DebuggerEngine; }
-
 DEBUGGER_EXPORT DebuggerRunControl *createDebuggerRunControl(const DebuggerStartParameters &sp,
                                                              ProjectExplorer::RunConfiguration *runConfig,
                                                              QString *errorMessage,
@@ -50,17 +46,13 @@ class DEBUGGER_EXPORT DebuggerRunControl : public ProjectExplorer::RunControl
     Q_OBJECT
 
 public:
-    DebuggerRunControl(ProjectExplorer::RunConfiguration *runConfig,
-                       Internal::DebuggerEngine *engine);
-
+    DebuggerRunControl(ProjectExplorer::RunConfiguration *runConfig, Core::Id runMode);
     ~DebuggerRunControl() override;
 
     // ProjectExplorer::RunControl
     void start() override;
     bool promptToStop(bool *prompt = 0) const override;
     void stop() override; // Called from SnapshotWindow.
-    QString displayName() const override;
-    bool supportsReRunning() const override;
     void handleApplicationOutput(const QString &msg, int channel);
 
     void startFailed();
@@ -74,17 +66,12 @@ public:
 
     void showMessage(const QString &msg, int channel = LogDebug);
 
-    DebuggerStartParameters &startParameters();
+    DebuggerStartParameters &startParameters(); // Used in Boot2Qt.
 
 signals:
     void requestRemoteSetup();
     void aboutToNotifyInferiorSetupOk();
     void stateChanged(Debugger::DebuggerState state);
-
-private:
-    void handleFinished();
-
-    Internal::DebuggerEngine *m_engine;
 };
 
 } // namespace Debugger