UFile (package = )
    UClass (name = ElvisKt)
        UMethod (name = foo)
            UParameter (name = bar)
            [!] UnknownKotlinExpression (NULL)
        UMethod (name = bar)
            [!] UnknownKotlinExpression (INTEGER_CONSTANT)
        UMethod (name = baz)
            [!] UnknownKotlinExpression (BLOCK)
