Review progress for the reference implementation

[pablogsal]

• Grammar changes
• Parser
• ASDL changes
• Other AST changes
• Builtin type changes in C
• Builtin type changes in Python
• Standard library changes
• Compiler changes & opcodes
• Symbol table changes
• VM changes (eval loop...)

[lysnikolaou]

I can help out with the review of the grammar and parser changes if that helps you, @pablogsal.

[brandtbucher]

Quick update: I'm making good progress with cleanup and plan on opening a draft PR against master before tomorrow.

[brandtbucher]

Then whoever wants to can start leaving more detailed comments (so they're all in one place).

[pablogsal]

I can help out with the review of the grammar and parser changes if that helps you, @pablogsal.

Absolutely! I will do a pass but it would be great if you can give it a scan too :)

[brandtbucher]

python/cpython#22917