Skipping execution is broken when we step in bytecode and try to skip at the wrong position

[StevenCostiou]

• use double dispatch on nodes to know what skipping strategy to use instead of switch case
• take into account nodes on which a bytecode step has been done (e.g. variable nodes receiver of messages)

That may not be simple, as depending on the parent (e.g., assignment or message or...?) what we have to pop from the context and how much we should advance the pc is not obvious.

[adri09070]

If I understand well, it has been fixed on Sindarin's side