Object Has Data

Each object <o/> in XMIR must not have the data, unless it’s base is org.eolang.bytes (or just bytes for short).

Incorrect:

<program>
  <objects>
    <o name="bar" base="foo">
      A1-B2-C3-D4-E5
    </o>
  </objects>
</program>

Correct:

<program>
  <objects>
    <o name="bar" base="org.eolang.bytes">
      A1-B2-C3-D4-E5
    </o>
  </objects>
</program>