UFile (package = )
    UClass (name = CycleInTypeParametersKt)
        UField (name = a)
            UAnnotation (fqName = org.jetbrains.annotations.Nullable)
            UBinaryExpressionWithType
                ULiteralExpression (value = null)
                UTypeReferenceExpression (name = Device<?>)
        UMethod (name = getA)
    UClass (name = Device)
        UMethod (name = Device)
