Make `FirShorteningContext` correctly return symbols for type
parameters, so they are not ignored when scopes are inspected
Add additional type of `PartialOrderOfScope` - `TypeParameter`, because
otherwise it would have been classified as `Unclassified`, and that
breaks scopes comparison
Add missing type parameters to the scope of class header in
`ContextCollector`, add testdata for that
There is a bug in the compiler with type parameters leaking to nested
classes headers (KT-61959). After it's fixed, the testData with
incorrect expected shortenings/scopes should be adjusted and fixed too
^KTIJ-27050 Fixed
Roman Golyshev
a78d631b16