KT element: KtClass
KT element text:
public final class FooBar public constructor() {
    public final fun doSmth(): kotlin.Unit { /* compiled code */ }
}
FIR element: FirRegularClassImpl
FIR source kind: KtRealSourceElementKind

FIR element rendered:
public final [ResolvedTo(BODY_RESOLVE)] class FooBar : R|kotlin/Any| {
    public final [ResolvedTo(BODY_RESOLVE)] fun doSmth(): R|kotlin/Unit|

    public [ResolvedTo(BODY_RESOLVE)] [ContainingClassKey=FooBar] constructor(): R|FooBar|

}