mypy

07edb847 - Fix following stub imports in daemon when using --follow-imports=skip (#10092)

Fix following stub imports in daemon when using --follow-imports=skip (#10092) Find added stubs in daemon when using --follow-imports=skip. Previously it was often necessary to restart the daemon to find new stubs. This was inconsistent, as the initial build did follow imports to stubs but incremental runs didn't (at least reliably). Add an optimization that avoids checking modules within top-level packages that clearly don't exist. This still can regress performance in large codebases somewhat significantly. I'll create follow-up PRs that make the regression less bad. Also mark follow_imports_for_stubs as unsupported in the daemon. I don't think that it worked reliably before, and now it works even less well.