fix(node): seperate worker module cache (#23634)

Construct a new module graph container for workers instead of sharing it
with the main worker.

Fixes #17248
Fixes #23461

---------

Co-authored-by: David Sherret <dsherret@gmail.com>

3 files changed, 20 insertions, 0 deletions

diff --git a/tests/specs/node/worker_threads_cache/__test__.jsonc b/tests/specs/node/worker_threads_cache/__test__.jsonc
new file mode 100644
index 000000000..a47fed572
--- /dev/null
+++ b/tests/specs/node/worker_threads_cache/__test__.jsonc
@@ -0,0 +1,5 @@
+{
+  "tempDir": true,
+  "args": "run -A main.ts",
+  "output": "main.out"
+}
diff --git a/tests/specs/node/worker_threads_cache/main.out b/tests/specs/node/worker_threads_cache/main.out
new file mode 100644
index 000000000..d14c028e5
--- /dev/null
+++ b/tests/specs/node/worker_threads_cache/main.out
@@ -0,0 +1,2 @@
+[Module: null prototype] { default: true }
+[Module: null prototype] { default: false }
diff --git a/tests/specs/node/worker_threads_cache/main.ts b/tests/specs/node/worker_threads_cache/main.ts
new file mode 100644
index 000000000..9703ac8f6
--- /dev/null
+++ b/tests/specs/node/worker_threads_cache/main.ts
@@ -0,0 +1,13 @@
+import fs from "node:fs/promises";
+import { isMainThread, Worker } from "node:worker_threads";
+
+await fs.writeFile("mod.mjs", "export default " + isMainThread);
+
+const path = new URL("mod.mjs", import.meta.url);
+const i = await import(path.href);
+console.log(i);
+
+if (isMainThread) {
+  const worker = new Worker(new URL("main.ts", import.meta.url));
+  worker.on("message", (msg) => console.log(msg));
+}