Philippe Hausler 8578584f61 Implementations for operators and async functions on AsyncSequence per SE-0298 (#35740) ...

* Implementations for operators and async functions on AsyncSequence per SE-0298

* Add trailing new lines to AsyncSequence adopter files

* Remove extra // from preambles

* Transition sequence properties and sequence initializers to internal

* Rename Upstream to Base

* Rename "Failable" asynchronous sequences to "Throwing"

* Make iteration consistent with closure lifetimes and track failure via state

* Use for await syntax for async function extensions on AsyncSequence

* Work-around rethrows calculations being incorrect for conformance + closure rethrowing

* Update testing names to reflect Throwing versus Failable

* Incorperate runAsyncAndBlock into the test function for suite calls

* Remove @frozen from AsyncSequence operators

* Back out reduce family functions for now due to IRGen bug

* Additional corrections for throwing cases and fix up potential linux crasher

* Add a upstream and throwing tests and correct flatMap's throwing behavior

* Unify parameter names to count

* Add a more helpful precondition on prefix

* Add tests for throwing cases of non closure async functions on AsyncSequence

* Correct missing count transition in dropFirst

* Correct missing , in assertion

* [NFC] add commentary on optimization in dropFirst on dropFirst

* Disable collect tests for non macOS platforms for now

* Disable all async sequence tests for non macOS platforms for now

2021-02-12 14:43:59 -08:00

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