Why:
* When temporary accounts are known, the match patterns need to
be available. If no match patterns are set, the match pattern
is set to an array containing the generate pattern. Therefore
the generate pattern must also be available if temporary
accounts are known.
* This was not the case before this commit, and certain settings
caused an error to be thrown from isTempName.
What:
* Use the generate pattern for the match patterns if temp accounts
are known and no match patterns are set.
* Update the tests to use a generate pattern but no match pattern
(the same as the default config).
Change-Id: Iadfbed40b14378a9309e8d7afab6064e25480514
578f5ea339