This is needed to avoid problems with checking visibility of types which
are used in supertypes during supertypes resolution in IDE, when
supertypes of some class can be already computed, but not saved in
class itself, but still lay in supertypeComputationSession
There were 4 failing tests before this changes (all in
`DiagnosisCompilerTestFE10TestdataTestGenerated$Tests$Exposed`):
- testInternal
- testInternalAndProtected
- testProtected
- testProtectedSameWay
Dmitriy Novozhilov
e7c9d76163