tbkka 7da78f77ba Verify that nil can cast to AnyHashable (#34434) ...

Optional conditionally conforms to Hashable, so for
example `Optional<Int>` must cast to AnyHashable
_even if it contains `nil`_.  This was broken up
through Swift 5.3 and was fixed by the new dynamic
cast runtime.

Add a test to ensure this stays fixed.

2020-10-28 11:48:11 -07:00

..

Casts.swift

Verify that nil can cast to AnyHashable (#34434)

2020-10-28 11:48:11 -07:00

CastTraps.swift.gyb

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