ExtensionSystem: Forward setEnabledBySettings to PluginSpec

Private part of PluginSpec is not accessible from plugins.

Change-Id: Id5b8099777b58895b37b5a57c65ecc11a5228143
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/libs/extensionsystem/pluginspec.cpp

@@ -486,6 +486,11 @@ bool PluginSpec::requiresAny(const QSet<PluginSpec *> &plugins) const
     });
 }
 
+void PluginSpec::setEnabledBySettings(bool value)
+{
+    d->setEnabledBySettings(value);
+}
+
 //==========PluginSpecPrivate==================
 
 namespace {

src/libs/extensionsystem/pluginspec.h

@@ -131,6 +131,8 @@ public:
     bool hasError() const;
     QString errorString() const;
 
+    void setEnabledBySettings(bool value);
+
 private:
     PluginSpec();