worker: set --experimental-worker always

This is similar to #25361 in
functionality, but allows avoiding some backporting pain for v11.x.

PR-URL: #25404
Refs: #25361
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: addaleax

src/node_options.h

@@ -95,7 +95,7 @@ class EnvironmentOptions : public Options {
   bool experimental_modules = false;
   bool experimental_repl_await = false;
   bool experimental_vm_modules = false;
-  bool experimental_worker = false;
+  bool experimental_worker = true;
   bool expose_internals = false;
   std::string http_parser =
 #ifdef NODE_EXPERIMENTAL_HTTP_DEFAULT

test/parallel/test-bootstrap-modules.js

@@ -9,7 +9,7 @@ const common = require('../common');
 const assert = require('assert');
 
 const isMainThread = common.isMainThread;
-const kMaxModuleCount = isMainThread ? 56 : 78;
+const kMaxModuleCount = isMainThread ? 57 : 78;
 
 assert(list.length <= kMaxModuleCount,
        `Total length: ${list.length}\n` + list.join('\n')