[ $arrayref ] => sub { something },  # if it handled arrayrefs as arrayrefs

##</code><code>##

$arrayref => sub { something } ,     # treat $arrayref as a list of tests

##</code><code>##

# instead of
[ $arrayref, 'foo' ] => sub { something },
# do this
$arrayref => sub { Case::resume() },
[ 'foo' ] => sub { something },