Re: [whatwg/streams] add @@asyncIterator to ReadableStreamDefaultReader (#950)

TimothyGu commented on this pull request.



> +</emu-alg>
+
+<h5 id="default-reader-@@asynciterator" for="ReadableStreamDefaultReader">[@@asyncIterator]()</h5>
+
+<div class="note">
+  The <code>@@asyncIterator</code> method is an alias of {{ReadableStreamDefaultReader/iterator}}.
+</div>
+
+<emu-alg>
+  1. Let _iterator_ be ? GetMethod(*this*, "iterator").
+  1. Return ? Call(_iterator_, *this*).
+</emu-alg>
+
+<h3 id="default-reader-asynciterator-prototype" interface lt="ReadableStreamDefaultReaderAsyncIteratorPrototype">
+  ReadableStreamDefaultReaderAsyncIteratorPrototype
+</h3>

Also, you can get the %AsyncIteratorPrototype% through `Object.getPrototypeOf(Object.getPrototypeOf((async function* () {}).prototype))`.

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