mypy

83012da0 - [mypyc] Refactor: extract non-local control classes from mypyc.genops (#8406)

[mypyc] Refactor: extract non-local control classes from mypyc.genops (#8406) This is the first PR in my quest to tidy up mypyc.genops. My goal is to eventually break it up into files no longer than 1500 lines each, and with a clean dependency structure. In the initial stages there will be many cyclic dependencies, but I plan to fix those later on.