replace ExtensionSystem::PluginManager::instance()->getObject<Core::ICore>() by Core::ICore::instance()

src/plugins/coreplugin/modemanager.cpp

@@ -217,7 +217,7 @@ void ModeManager::currentTabChanged(int index)
         // FIXME: This hardcoded context update is required for the Debug and Edit modes, since
         // they use the editor widget, which is already a context widget so the main window won't
         // go further up the parent tree to find the mode context.
-        CoreImpl *core = CoreImpl::instance();
+        ICore *core = ICore::instance();
         foreach (const int context, m_addedContexts)
             core->removeAdditionalContext(context);