Now fake overrides declarations invisible for override
are totally ignored by FakeOverrideBuilder, instead of
creating fake overrides for them, and than filtering them
out later.
As side-effect it fixes KT-64972.
^KT-64974
The test data is used both in ":kotlin-util-klib-abi" and
":native:native.tests" modules. It's better to keep it together with
the test data for other KLIB tests which are also used in more than one
module, i.e. in "compiler/testData/klib/" dir.
Vladimir Sukharev