Unfortunately, it's not enough to know direct overriddens
to correctly build fake overrides. This mean, that we need to know
whole overridden tree during the process of building.
It happens automatically for normal classes, but not for lazy classes,
as their overriddens are built separatly.
This commit enforces correct overrddens for lazy classes in hierarhies
at the point, where they should be normally computed.
^KT-65236
Pavel Kunyavskiy
c0152ccf0f