Fixed crash when using -noload to disable multiple plugins

The noload behavior is also changed: it now always shows the plugins in
About Plugins... menu, even though -noload was used. When using -noload,
the enabled state of the plugin is not saved, so if the command line
arg is removed, the plugin will be loaded normally.

Reviewed-by: con

src/libs/extensionsystem/optionsparser.cpp

@@ -128,7 +128,7 @@ bool OptionsParser::checkForNoLoadOption()
                                                              "The plugin '%1' does not exist.").arg(m_currentArg);
             m_hasError = true;
         } else {
-            m_pmPrivate->removePluginSpec(spec);
+            m_pmPrivate->disablePluginIndirectly(spec);
             m_isDependencyRefreshNeeded = true;
         }
     }