build: remove dead symlink from MAS build (#24158)

* build: remove dead symlink from MAS build

* chore: new out cache

* build: fixup gn check

* Update node_main.cc

* chore: fix lint

script/check-symlinks.js

@@ -0,0 +1,42 @@
+const fs = require('fs');
+const path = require('path');
+
+const utils = require('./lib/utils');
+
+if (process.platform !== 'darwin') {
+  console.log('Not checking symlinks on non-darwin platform');
+  process.exit(0);
+}
+
+const appPath = path.resolve(__dirname, '..', '..', 'out', utils.getOutDir(), 'Electron.app');
+const visited = new Set();
+const traverse = (p) => {
+  if (visited.has(p)) return;
+
+  visited.add(p);
+  if (!fs.statSync(p).isDirectory()) return;
+
+  for (const child of fs.readdirSync(p)) {
+    const childPath = path.resolve(p, child);
+    let realPath;
+    try {
+      realPath = fs.realpathSync(childPath);
+    } catch (err) {
+      if (err.path) {
+        console.error('Detected an invalid symlink');
+        console.error('Source:', childPath);
+        let link = fs.readlinkSync(childPath);
+        if (!link.startsWith('.')) {
+          link = `../${link}`;
+        }
+        console.error('Target:', path.resolve(childPath, link));
+        process.exit(1);
+      } else {
+        throw err;
+      }
+    }
+    traverse(realPath);
+  }
+};
+
+traverse(appPath);