v0.8.0: v1/v2 split + v0.8.x roadmap

v0.7.10.12 — while + for + nested-def + nonlocal in funcbody (4 fixtu…

…res, 287/287 oracle, 247/40/0/0 parity)

v0.7.10.11: raise + assert + global + AnnAssign in funcbody

raise (3 fixtures), global (1), AnnAssign (2), assert (2) — 8 new
funcbody fixtures, 283/283 oracle byte-identical, parity 243/40/0/0.
Two new opcodes (RAISE_VARARGS=104, LOAD_COMMON_CONSTANT=81), CFG
isTerminator extended with RAISE_VARARGS to mirror IS_SCOPE_EXIT_OPCODE,
_PyCode_Validate min-stacksize-1 bump, and symtable global-wins-over-
local. nonlocal defers to v0.7.10.12.

Spec: notes/Spec/1500/1569_gocopy_v07111_raise.md

v0.7.10.10: Name decorators via codegen_decorators + codegen_apply_de…

…corators

v0.7.10.9: codegen_boolop port for and/or in funcbody

v0.7.10.8: defaults + kwonly defaults + fold_tuple_of_constants

v0.7.10.7: extended args (posonly / kwonly / *args / **kwargs) in fun…

…cbody

v0.7.10.6: optimize_load_const + remove_unused_consts 1:1 port

v0.7.10.5: funcbody fixtures (small-int return + is None + Compare-wi…

…th-const)

v0.7.10.4: optimize_load_fast 1:1 port