refactor: use separate ipc-renderer-internal / ipc-main-internal APIs for Electron internals (#13940)

spec/fixtures/api/ipc-main-listeners/main.js

@@ -0,0 +1,10 @@
+const { app, ipcMain } = require('electron')
+
+app.on('ready', () => {
+  process.stdout.write(JSON.stringify(ipcMain.eventNames()))
+  process.stdout.end()
+
+  setImmediate(() => {
+    app.quit()
+  })
+})

spec/fixtures/api/ipc-main-listeners/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "ipc-main-listeners",
+  "main": "main.js"
+}