readline: make AsyncIterator stable

Author: mcollina

doc/api/readline.md

@@ -312,9 +312,13 @@ The `rl.write()` method will write the data to the `readline` `Interface`'s
 ### rl\[Symbol.asyncIterator\]()
 <!-- YAML
 added: v11.4.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/26989
+    description: AsyncIterator support is not experimental anymore.
 -->
 
-> Stability: 1 - Experimental
+> Stability: 2 - Stable
 
 * Returns: {AsyncIterator}
 

lib/readline.js

@@ -33,7 +33,6 @@ const {
 } = require('internal/errors').codes;
 const { validateString } = require('internal/validators');
 const { inspect } = require('internal/util/inspect');
-const { emitExperimentalWarning } = require('internal/util');
 const EventEmitter = require('events');
 const {
   CSI,
@@ -1068,8 +1067,6 @@ Interface.prototype._ttyWrite = function(s, key) {
 };
 
 Interface.prototype[Symbol.asyncIterator] = function() {
-  emitExperimentalWarning('readline Interface [Symbol.asyncIterator]');
-
   if (this[kLineObjectStream] === undefined) {
     if (Readable === undefined) {
       Readable = require('stream').Readable;