Do not consider arguments in a helper as a global reference (#16268)

packages/babel-helpers/src/index.ts

@@ -110,7 +110,9 @@ function getHelperMetadata(file: File): HelperMetadata {
       const name = child.node.name;
       const binding = child.scope.getBinding(name);
       if (!binding) {
-        globals.add(name);
+        if (name !== "arguments" || child.scope.path.isProgram()) {
+          globals.add(name);
+        }
       } else if (dependencies.has(binding.identifier)) {
         importBindingsReferences.push(makePath(child));
       }

packages/babel-helpers/test/fixtures/misc/arguments-identifier-in-function/input.js

@@ -0,0 +1 @@
+var arguments;

packages/babel-helpers/test/fixtures/misc/arguments-identifier-in-function/options.json

@@ -0,0 +1,4 @@
+{
+  "plugins": ["./plugin"],
+  "minNodeVersion": "12.0.0"
+}

packages/babel-helpers/test/fixtures/misc/arguments-identifier-in-function/output.js

@@ -0,0 +1,2 @@
+function _assertClassBrand(e, t, n) { if ("function" == typeof t ? t === e : t.has(e)) return arguments.length < 3 ? e : n; throw new TypeError("Private element is not present on this object"); }
+var arguments;

packages/babel-helpers/test/fixtures/misc/arguments-identifier-in-function/plugin.js

@@ -0,0 +1,9 @@
+export default function () {
+  return {
+    visitor: {
+      Program(path, file) {
+        file.addHelper("assertClassBrand");
+      },
+    },
+  };
+}