UI files: Do not polute the global Ui namespace

Make sure all ui-files are in the plugin's internal namespace.

Change-Id: Ifb2c3093441e8feb89e46f52fbb386fc316cfd13
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/qmljseditor/qmljscomponentnamedialog.h

@@ -36,9 +36,15 @@
 #include <QtGui/QDialog>
 
 QT_BEGIN_NAMESPACE
+
+namespace QmlJSEditor {
+namespace Internal {
 namespace Ui {
     class ComponentNameDialog;
-}
+} // namespace Ui
+} // namespace Internal
+} // namespace QmlJSEditor
+
 QT_END_NAMESPACE
 
 namespace QmlJSEditor {