loplugin:passstuffbyref also for {css::uno,rtl}::Reference

Change-Id: Ibeb53a944551b9a654979fefaae85ba3f82c52fb

desktop/source/deployment/gui/dp_gui_updateinstalldialog.cxx

@@ -81,7 +81,7 @@ namespace dp_gui {
 class UpdateInstallDialog::Thread: public salhelper::Thread {
     friend class UpdateCommandEnv;
 public:
-    Thread(cssu::Reference< cssu::XComponentContext > ctx,
+    Thread(cssu::Reference< cssu::XComponentContext > const & ctx,
         UpdateInstallDialog & dialog, std::vector< dp_gui::UpdateData > & aVecUpdateData);
 
     void stop();
@@ -146,7 +146,7 @@ public:
 
 
 UpdateInstallDialog::Thread::Thread(
-    cssu::Reference< cssu::XComponentContext> xCtx,
+    cssu::Reference< cssu::XComponentContext> const & xCtx,
     UpdateInstallDialog & dialog,
     std::vector< dp_gui::UpdateData > & aVecUpdateData):
     salhelper::Thread("dp_gui_updateinstalldialog"),

desktop/source/migration/migration_impl.hxx

@@ -104,7 +104,7 @@ struct MigrationItem
     MigrationItem(const OUString& sParentNodeName,
         const OUString& sPrevSibling,
         const OUString& sCommandURL,
-        const css::uno::Reference< css::container::XIndexContainer > xPopupMenu)
+        const css::uno::Reference< css::container::XIndexContainer > & xPopupMenu)
     {
         m_sParentNodeName = sParentNodeName;
         m_sPrevSibling    = sPrevSibling;