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Concurrency: Fix a condfail in default AsyncIteratorProtocol.next() #72956

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4 changes: 4 additions & 0 deletions stdlib/public/Concurrency/AsyncIteratorProtocol.swift
Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,10 @@ extension AsyncIteratorProtocol {
@available(SwiftStdlib 6.0, *)
@inlinable
public mutating func next() async throws(Failure) -> Element? {
#if $OptionalIsolatedParameters
return try await next(isolation: nil)
#else
fatalError("unsupported compiler")
#endif
}
}