...not reporting on companion object members as well as other
nested classes.
Annotation classes are accepted because this is how it already worked,
see other tests, for example `annotationsViaActualTypeAlias.kt`.
Test for nested annotation classes will be added in subsequent commit,
because it currently will fail in test
`TreeCompareTest.testCompareDiagnostics` because light-tree2fir
produces different tree due to a bug when converting properties
from expect primary constructor. See subsequent commit for a fix.
Review: KT-MR-12107
^KT-61784
Roman Efremov
c6d7f15070