KT element: KtClass
FIR element: FirRegularClassImpl
FIR source kind: KtRealSourceElementKind

FIR element rendered:
public final [ResolvedTo(BODY_RESOLVE)] class A : R|kotlin/Any| {
    public [ResolvedTo(BODY_RESOLVE)] [ContainingClassKey=A] constructor(): R|A| {
        super<R|kotlin/Any|>()
    }

    public final [ResolvedTo(BODY_RESOLVE)] fun foo(): R|kotlin/Int| {
        ^foo Int(42)
    }

}