QMap => QHash

QMap => QHash

this should make the evaluator quite a lot faster. the total win for
qtbase/src is only 6%, though.

i made some effort to avoid that output files get randomized. however, i
didn't bother to keep debug output sorted.

Change-Id: Id9cef4674c0153c11ebbb65cb63bf8c229eb56e3
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>