QmlDesigner.MetaInfo: Fix for qualification

If there is no package the unqualified name is the name not
an empty string.

Change-Id: I04a51fc79ea9e312e2035ce80eb0f846673a3a44
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

src/plugins/qmldesigner/designercore/metainfo/nodemetainfo.cpp

@@ -778,7 +778,7 @@ static QString getUnqualifiedName(const QString &name)
 {
     const QStringList nameComponents = name.split('.');
     if (nameComponents.size() < 2)
-        return QString();
+        return name;
     return nameComponents.last();
 }