debugger: re-enable sorting of source files, modules, and thread views

Change-Id: I5610be7e78593d345c1f79fff6b2a61b105f8fbc
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/debugger/moduleswindow.cpp

@@ -61,6 +61,7 @@ ModulesWindow::ModulesWindow(QWidget *parent)
   : BaseWindow(parent)
 {
     setWindowTitle(tr("Modules"));
+    setSortingEnabled(true);
     setAlwaysAdjustColumnsAction(debuggerCore()->action(AlwaysAdjustModulesColumnWidths));
 
     connect(this, SIGNAL(activated(QModelIndex)),

src/plugins/debugger/sourcefileswindow.cpp

@@ -60,6 +60,7 @@ SourceFilesWindow::SourceFilesWindow(QWidget *parent)
     : BaseWindow(parent)
 {
     setWindowTitle(tr("Source Files"));
+    setSortingEnabled(true);
 }
 
 void SourceFilesWindow::rowActivated(const QModelIndex &index)

src/plugins/debugger/threadswindow.cpp

@@ -52,6 +52,7 @@ ThreadsWindow::ThreadsWindow(QWidget *parent)
     : BaseWindow(parent)
 {
     setWindowTitle(tr("Thread"));
+    setSortingEnabled(true);
     setAlwaysAdjustColumnsAction(debuggerCore()->action(AlwaysAdjustThreadsColumnWidths));
     setObjectName(QLatin1String("ThreadsWindow"));
 }