Fix ugly warnings by MinGW:
qwindowsfontdatabase.cpp: In member function '{anonymous}::TableDirectory*
{anonymous}::EmbeddedFont::tableDirectoryEntry(const QByteArray&)':qwindowsfontdatabase.cpp:167:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (Q_UNLIKELY(m_fontData.size() < sizeof(OffsetSubTable)))
^
..\..\..\..\include/QtCore/../../src/corelib/global/qcompilerdetection.h:202:49:
note: in definition of macro 'Q_UNLIKELY'
Change-Id: I47fac598ed1b6623146fb437c00da64d8e8b6984
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>