Debugger/Windows: Do not attach to process being debugged.

Reviewed-by: Robert Loehning <robert.loehning@nokia.com>
Task-number: QTCREATORBUG-2086

src/plugins/debugger/debuggerdialogs.h

@@ -92,6 +92,8 @@ public:
     qint64 attachPID() const;
     QString executable() const;
 
+    virtual void accept();
+
 private slots:
     void rebuildProcessList();
     void procSelected(const QModelIndex &index);