Check in codegen test expectations.

test/codegen/expect/language/proxy_test_none_multi.js

Index: test/codegen/expect/language/proxy_test_none_multi.js
diff --git a/test/codegen/expect/language/proxy_test_none_multi.js b/test/codegen/expect/language/proxy_test_none_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..de9992215edc8be175cdbba0d4217b3d9f54af02
--- /dev/null
+++ b/test/codegen/expect/language/proxy_test_none_multi.js
@@ -0,0 +1,19 @@
+dart_library.library('language/proxy_test_none_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__proxy_test_none_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const proxy_test_none_multi = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  proxy_test_none_multi.NonProxy = class NonProxy extends core.Object {};
+  proxy_test_none_multi.Proxy = class Proxy extends core.Object {};
+  proxy_test_none_multi.alias = core.proxy;
+  proxy_test_none_multi.AliasProxy = class AliasProxy extends core.Object {};
+  proxy_test_none_multi.main = function() {
+  };
+  dart.fn(proxy_test_none_multi.main, VoidTodynamic());
+  // Exports:
+  exports.proxy_test_none_multi = proxy_test_none_multi;
+});