tls: avoid using forEach

PR-URL: #11582
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

lib/_tls_wrap.js

@@ -300,12 +300,16 @@ var proxiedMethods = [
 ];
 
 // Proxy HandleWrap, PipeWrap and TCPWrap methods
-proxiedMethods.forEach(function(name) {
-  tls_wrap.TLSWrap.prototype[name] = function methodProxy(...args) {
+function makeMethodProxy(name) {
+  return function methodProxy(...args) {
     if (this._parent[name])
       return this._parent[name].apply(this._parent, args);
   };
-});
+}
+for (var n = 0; n < proxiedMethods.length; n++) {
+  tls_wrap.TLSWrap.prototype[proxiedMethods[n]] =
+    makeMethodProxy(proxiedMethods[n]);
+}
 
 tls_wrap.TLSWrap.prototype.close = function close(cb) {
   let ssl;