Since now in Qt5 the moc does full macro substitution, it needs to handle
the defines passed is command argument, even if they span over multiple
tokens, or if they do not have any token.
Example:
moc '-DCOMPLEX=QVector<int>' '-DEMPTY=' foo.h
[ChangeLog][moc] Fixed passing -D of a macro defined to something more
complex than a single identifier.
Task-number: QTBUG-33668
Change-Id: Ie8131de215f1659a24af4778d52ee40cda19759f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
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