MoveStatics: Fix classes without companion not getting static <clinit>
MoveStatics: Fix classes without companion not getting static <clinit>

This broke lazy vals, as unsafe offsets were not initialised.

sjrd/dotty,som-snytt/dotty,lampepfl/dotty,som-snytt/dotty,som-snytt/dotty,som-snytt/dotty,dotty-staging/dotty,lampepfl/dotty,dotty-staging/dotty,lampepfl/dotty,som-snytt/dotty,sjrd/dotty,dotty-staging/dotty,sjrd/dotty,sjrd/dotty,lampepfl/dotty,dotty-staging/dotty,dotty-staging/dotty,sjrd/dotty,lampepfl/dotty