dotvisualizer
Workaround for https://github.com/freechipsproject/firrtl/issues/498 from @jackkoenig
(Since version FIRRTL 1.3) Due to confusion, 'dependents' is being renamed to 'optionalPrerequisiteOf'. Override the latter instead.
Workaround for https://github.com/freechipsproject/firrtl/issues/498 from @jackkoenig