Add QT_{BEGIN,END}_{NAMESPACE,HEADER} to qtquickglobal.h

Unit test is testing for it

Change-Id: Ie37a0f7103dbe8c19a4cfbca2d4fe026c805ba0b
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/quick/qtquickglobal.h

@@ -44,6 +44,9 @@
 
 #include <QtCore/qglobal.h>
 
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
 #ifndef QT_STATIC
 #  if defined(QT_BUILD_QUICK_LIB)
 #    define Q_QUICK_EXPORT Q_DECL_EXPORT
@@ -54,4 +57,7 @@
 #  define Q_QUICK_EXPORT
 #endif
 
+QT_END_NAMESPACE
+QT_END_HEADER
+
 #endif // QTQUICKGLOBAL_H