UFile (package = )
    UClass (name = WhenStringLiteralKt)
        UField (name = a)
            [!] UnknownKotlinExpression (CALL_EXPRESSION)
        UField (name = b)
            [!] UnknownKotlinExpression (WHEN)
        UMethod (name = getA)
        UMethod (name = getB)
        UMethod (name = <no name provided>)
            UBlockExpression
                ULiteralExpression (value = "abc1")
                ULiteralExpression (value = "def1")
