Fix type narrowing for class equality comparisons - #11607

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Henry Su (hsusul) wants to merge 3 commits into

microsoft:mainfrom

hsusul:fix/type-equality-comparison-narrowing

Commits on Aug 10, 2026

Fix TypeGuard and TypeIs narrowing for functions with union return types
Henry Su (hsusul)
committed
bfc7466
Address review feedback: restrict equality class narrowing to instantiable class reference subtypes and remove extraneous TypeGuard union hunk
Henry Su (hsusul)
committed
7f45fe2

Commits on Aug 18, 2026

Remove dormant typeIs5.py sample
Henry Su (hsusul)
committed
8e87e9d