QVersionNumber will gain a small-version-number optimization, which
stores sequences of less than 4 (32bit) or 8 (64bit) 8-bit signed
segments inside the class instead of a QVector. Make sure the tests
cover those cases, too.
Change-Id: If1d875c75d284908756b305f767a7218cab5226f
Reviewed-by: Keith Gardner <kreios4004@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>