Missing `@line` Attributes in Synthetic Tuple Elements of XMIR

[yegor256]

This is my code:

[] > app
  * > @
    1
    2
    3

This is what I see in XMIR:

      <o base="Φ.org.eolang.tuple" line="2" name="φ" pos="2">
         <o as="α0" base="Φ.org.eolang.tuple">                       # where is @line?
            <o as="α0" base="Φ.org.eolang.tuple">                    # where is @line?
               <o as="α0" base="Φ.org.eolang.tuple.empty"/>          # where is @line?
               <o as="α1" base="Φ.org.eolang.number" line="3" pos="4">
                  <o as="α0" base="Φ.org.eolang.bytes" line="3" pos="4">
                     <o as="α0" line="3" pos="4">3F-F0-00-00-00-00-00-00</o>
                  </o>
               </o>

The @line is missing.