Currently, REDECLARATION is not reported if two conflicting declarations
are in different source sets (KT-59898). However, when it's fixed,
we want this test to keep testing the signature clash diagnostic,
and not fail because of unexpected REDECLARATION error.
For some reason type parameters end up in
`GlobdalDeclarationTable`, and thus we tracked them in
`IdSignatureClashDetector`, which wasn't right and confused the
diagnostic renderer that uses
`org.jetbrains.kotlin.resolve.MemberComparator` for sorting the
declarations to display in diagnostics. That comparator doesn't know
jow to work with type parameters.
Besides, type parameters, like many other types of declarations, are not
considered public wrt KLIB ABI, so there's no need to show
CONFLICTING_KLIB_SIGNATURES_ERROR for them.
^KT-65723 Fixed
Nikita Bobko