fixup! Add async_iterable support

Author: Ms2ger

index.bs

@@ -4160,6 +4160,10 @@ iteration – or a tuple with three elements:
 1.  a value of the second type given in the declaration;
 1.  an opaque value that is passed back to the next invocation of the algorithm,
 
+The prose may also define <dfn>asynchronous iterator initialization steps</dfn> for the
+[=interface=] with an [=asynchronously iterable declaration=], which would then be called with the
+newly created iterator object.
+
 [=Interfaces=] with an [=asynchronously iterable declaration=] must not have any
 [=interface members=] named "<code>entries</code>", "<code>keys</code>", or "<code>values</code>",
 or have any [=inherited interfaces=] that have [=interface members=] with these names.
@@ -11667,7 +11671,10 @@ The location of the property is determined as follows:
     1.  If |object| does not [=implement=] |interface|, then [=ECMAScript/throw=] a
         {{ECMAScript/TypeError}}.
     1.  Let |iterator| be a newly created [=default asynchronous iterator object=] for |interface|
-        with |object| as its target and iterator kind "<code>key+value</code>".
+        with |object| as its [=default asynchronous iterator object/target=] and
+        "<code>key+value</code>" as its [=default asynchronous iterator object/kind=].
+    1.  Run the [=asynchronous iterator initialization steps=] for |interface| with |iterator|, if
+        any.
     1.  Return |iterator|.
 </div>
 
@@ -11856,7 +11863,10 @@ then the [=function object=] is {{%ArrayProto_keys%}}.
     1.  If |object| does not [=implement=] |interface|, then [=ECMAScript/throw=] a
         {{ECMAScript/TypeError}}.
     1.  Let |iterator| be a newly created [=default asynchronous iterator object=] for |interface|
-        with |object| as its target and iterator kind "<code>key</code>".
+        with |object| as its [=default asynchronous iterator object/target=] and
+        "<code>key</code>" as its [=default asynchronous iterator object/kind=].
+    1.  Run the [=asynchronous iterator initialization steps=] for |interface| with |iterator|, if
+        any.
     1.  Return |iterator|.
 </div>
 
@@ -11917,7 +11927,10 @@ the value of the {{@@iterator}} property.
     1.  If |object| does not [=implement=] |interface|, then [=ECMAScript/throw=] a
         {{ECMAScript/TypeError}}.
     1.  Let |iterator| be a newly created [=default asynchronous iterator object=] for |interface|
-        with |object| as its target and iterator kind "<code>value</code>".
+        with |object| as its [=default asynchronous iterator object/target=] and
+        "<code>value</code>" as its [=default asynchronous iterator object/kind=].
+    1.  Run the [=asynchronous iterator initialization steps=] for |interface| with |iterator|, if
+        any.
     1.  Return |iterator|.
 </div>
 
@@ -12152,6 +12165,8 @@ The \[[Prototype]] [=internal slot=] of an [=asynchronous iterator prototype obj
     1.  Return |object|'s [=default asynchronous iterator object/ongoing promise=].
 </div>
 
+Issue: <code>return</code>; <code>throw</code> methods?
+
 The [=class string=] of an [=asynchronous iterator prototype object=] for a given [=interface=] is
 the result of concatenating the [=identifier=] of the [=interface=] and the string
 "<code> AsyncIterator</code>".