process: split worker IO into internal/worker/io.js

- Move `setupProcessStdio` which contains write access to
  the process object into `bootstrap/node.js`
- Move `MessagePort`, `MessageChannel`, `ReadableWorkerStdio`,
  and `WritableWorkerStdio` into `internal/worker/io.js`
- Move more worker-specific bootstrap code into
  `internal/process/worker_thread_only` from `setupChild`
  in `internal/worker.js`, and move the `process._fatalException`
  overwrite into `bootstrap/node.js` for clarity.

PR-URL: https://github.com/nodejs/node/pull/25199
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/node.gyp b/node.gyp
index 8db51f6857..d2c3560131 100644
--- a/node.gyp
+++ b/node.gyp
@@ -181,6 +181,7 @@
       'lib/internal/stream_base_commons.js',
       'lib/internal/vm/source_text_module.js',
       'lib/internal/worker.js',
+      'lib/internal/worker/io.js',
       'lib/internal/streams/lazy_transform.js',
       'lib/internal/streams/async_iterator.js',
       'lib/internal/streams/buffer_list.js',