tls: prevent multiple connection errors

onConnectEnd(), which is called by TLSSocket, has a guard to
prevent being called multiple times, but it does not prevent the
OpenSSL error handler from being called, leading to multiple
error events. This commit adds that piece of missing logic.

PR-URL: #23636
Fixes: #23631
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: cjihrig

lib/_tls_wrap.js

@@ -250,9 +250,11 @@ function onocspresponse(resp) {
 function onerror(err) {
   const owner = this[owner_symbol];
 
-  if (owner._writableState.errorEmitted)
+  if (owner._hadError)
     return;
 
+  owner._hadError = true;
+
   // Destroy socket if error happened before handshake's finish
   if (!owner._secureEstablished) {
     // When handshake fails control is not yet released,
@@ -267,8 +269,6 @@ function onerror(err) {
     // Throw error
     owner._emitTLSError(err);
   }
-
-  owner._writableState.errorEmitted = true;
 }
 
 function initRead(tls, wrapped) {