Made typedUnApply a hook that has to be overridden in a ReTyper.
Made typedUnApply a hook that has to be overridden in a ReTyper.

Change exhibits a problem in the transformers: pattern matching try's
do not seem to be handled.

lampepfl/dotty,som-snytt/dotty,dotty-staging/dotty,reactormonk/dotty,yusuke2255/dotty,reactormonk/dotty,svalaskevicius/dotty,lampepfl/dotty,AlexSikia/dotty,VladimirNik/dotty,yusuke2255/dotty,sjrd/dotty,dotty-staging/dotty,spetz911/dotty,dotty-staging/dotty,dotty-staging/dotty,som-snytt/dotty,sjrd/dotty,auvik/dotty,lampepfl/dotty,densh/dotty,VladimirNik/dotty,folone/dotty,angi2/dotty,som-snytt/dotty,auvik/dotty,vsalvis/dotty,vsalvis/dotty,sjrd/dotty,densh/dotty,svalaskevicius/dotty,lampepfl/dotty,angi2/dotty,sjrd/dotty,som-snytt/dotty,som-snytt/dotty,lampepfl/dotty,folone/dotty,dotty-staging/dotty,spetz911/dotty,AlexSikia/dotty,sjrd/dotty