Diff from mypy_primer, showing the effect of this PR on open source code:

django-stubs (https://github.com/typeddjango/django-stubs): 1.44x faster (35.2s -> 24.4s in a single noisy sample)

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Thanks for implementing this! I think it should close #18435.

Yeah, added it to the PR description.

Btw. I'm open to suggestion for a better option name. deprecated_calls_exclude works but doesn't sound that good IMO. Although I suspect it's primarily going to be used in config files, so it might not matter much.

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Cool, want to make a changelog entry as well?

Yeah, let's do that in a followup if that's all right. I've a few more topics in mind for already merged PRs. E.g. different property getter / setter types, stubgen decorator improvements, mypyc support for frozenset.