It seems there are some tests in the various Qt modules that skip
writing the XML testlog file. If there are good reasons for that (for
example test is a custom shellscript) then it should be added to the
DUMB_TESTS list.
Change-Id: Iffb00e1fda42bb8e7338a94c9320e45900db1bc1
Reviewed-by: Daniel Smith <Daniel.Smith@qt.io>