Setter: get argument by const reference

Without the const QVariant can't be constructed inline.

Change-Id: I80ff9eb677361dca2fd104ef85facf7b69e580d7
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/projectexplorer/project.cpp

@@ -421,7 +421,7 @@ QVariant Project::namedSettings(const QString &name) const
     return d->m_pluginSettings.value(name);
 }
 
-void Project::setNamedSettings(const QString &name, QVariant &value)
+void Project::setNamedSettings(const QString &name, const QVariant &value)
 {
     if (value.isNull())
         d->m_pluginSettings.remove(name);

src/plugins/projectexplorer/project.h

@@ -119,7 +119,7 @@ public:
     virtual Core::Context projectLanguage() const;
 
     QVariant namedSettings(const QString &name) const;
-    void setNamedSettings(const QString &name, QVariant &value);
+    void setNamedSettings(const QString &name, const QVariant &value);
 
     virtual bool needsConfiguration() const;
     virtual void configureAsExampleProject(const QStringList &platforms);