When including files, moc inserts a MOC_INCLUDE_BEGIN and
MOC_INCLUDE_END token into the token stream. Those are already handled
in the toplevel Moc::parse function, but parseEnum lacked support so
far.
Pick-to: 5.15
Fixes: QTBUG-80578
Change-Id: I35c8fd959347d94af20090b3a505dd9e6bfaff88
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
