fixup! more refactor

Author: bakkot

spec.html

@@ -48676,10 +48676,7 @@ <h1>
         <emu-alg>
           1. Assert: _generator_.[[AsyncGeneratorState]] is ~draining-queue~.
           1. Let _queue_ be _generator_.[[AsyncGeneratorQueue]].
-          1. Repeat,
-            1. If _queue_ is empty, then
-              1. Set _generator_.[[AsyncGeneratorState]] to ~completed~.
-              1. Return ~unused~.
+          1. Repeat, while _queue_ is not empty,
             1. Let _next_ be the first element of _queue_.
             1. Let _completion_ be Completion(_next_.[[Completion]]).
             1. If _completion_ is a return completion, then
@@ -48689,6 +48686,8 @@ <h1>
               1. If _completion_ is a normal completion, then
                 1. Set _completion_ to NormalCompletion(*undefined*).
               1. Perform AsyncGeneratorCompleteStep(_generator_, _completion_, *true*).
+          1. Set _generator_.[[AsyncGeneratorState]] to ~completed~.
+          1. Return ~unused~.
         </emu-alg>
       </emu-clause>