Round 2 - focus on sources.
For classes with initial in range [I-Z].
Try to keep the same separators between different kind of headers.
Change-Id: I8a7ab99bab8120ee72cda6433ee3dc6f260a4d76
Reviewed-by: hjk <hjk@qt.io>
Round 1 - focus on headers.
For classes with initial in range [T-Z].
Replace QT_FORWARD_DECLARE_CLASS with QT_BEGIN_NAMESPACE and
QT_END_NAMESPACE and forward declare inside.
Change-Id: I4ac3a8391e6167aa2db3973a9f94a45ac3c8ebd1
Reviewed-by: hjk <hjk@qt.io>
