fix(ext/node): fix prismjs compatibiliy in Web Worker (#25062)

PrismJS uses `WorkerGlobalScope` and `self` for detecting browser's Web
Worker context:
https://github.com/PrismJS/prism/blob/59e5a3471377057de1f401ba38337aca27b80e03/prism.js#L11

Now the detection logic above is broken when it's imported from Deno's
Web Worker context because we only hide `self` (Prism assumes when
`WorkerGlobalScope` is available, `self` is also available).

This change fixes the above by also hiding `WorkerGlobalScope` global in
Node compat mode.

closes #25008

2 files changed, 12 insertions, 0 deletions

diff --git a/tests/registry/npm/@denotest/check-worker-globals/1.0.0/index.js b/tests/registry/npm/@denotest/check-worker-globals/1.0.0/index.js
new file mode 100644
index 000000000..8da68f791
--- /dev/null
+++ b/tests/registry/npm/@denotest/check-worker-globals/1.0.0/index.js
@@ -0,0 +1,7 @@
+if (typeof self !== "undefined") {
+  throw new Error("self is defined");
+}
+
+if (typeof WorkerGlobalScope !== "undefined") {
+  throw new Error("WorkerGlobalScope is defined");
+}
diff --git a/tests/registry/npm/@denotest/check-worker-globals/1.0.0/package.json b/tests/registry/npm/@denotest/check-worker-globals/1.0.0/package.json
new file mode 100644
index 000000000..b78fa210a
--- /dev/null
+++ b/tests/registry/npm/@denotest/check-worker-globals/1.0.0/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "@denotest/check-worker-globals",
+  "version": "1.0.0",
+  "main": "index.js"
+}