make it fail sooner when we run the testsuite. Due to modifications in
rewriting we run out or context stack more slowly than before. Perhaps
something to come back to at some point.

Required by the changes to GHC to generate main() when linking.

The default setting for only_ways was [], which meant "all ways".
However, it's really useful to have [] mean "no ways".

In cgrun057 I used only_ways(prof_ways) to mean "only run this in the
profiling ways", but if profiling is disabled then prof_ways = [] and
this doesn't do what we want.  Profiling is normally disabled in
validate, but I had it enabled because I was testing profiling.

So now only_ways defaults to None, which means "all ways", and [] now
means "no ways".

going on, perhaps a general bug related to .hs-boot files, we should
really look at this.

The fix for #5594 made the output of this test more correct.

dph-par is now dph-lifted-copy

This big patch implements a kind-polymorphic core for GHC. The current
implementation focuses on making sure that all kind-monomorphic programs still
work in the new core; it is not yet guaranteed that kind-polymorphic programs
(using the new -XPolyKinds flag) will work.

For more information, see http://haskell.org/haskellwiki/GHC/Kinds