ZJIT: Write LIR to iongraph

[tekknolagi]

This probably requires some internal API refactoring. At least:

• Pull iongraph out of HIR or write HIR and LIR separately
• Get basic blocks into LIR

[aidenfoxivey]

I wonder about using a data structure that can be held for both HIR and LIR generation, then serialized into Iongraph at the end.

[tekknolagi]

Isn't that your JSON blob?

[aidenfoxivey]

Isn't that your JSON blob?

Yes, though the JSON blob isn't really restrictive. It lets you do whatever you'd like.

[aidenfoxivey]

Isn't that your JSON blob?

Yes, though the JSON blob isn't really restrictive. It lets you do whatever you'd like. It wouldn't, for example, rigidly ensure that you have the correct format.

[tekknolagi]

I think that's alright (for now)