Check in codegen test expectations.

test/codegen/expect/language/second_test.js

Index: test/codegen/expect/language/second_test.js
diff --git a/test/codegen/expect/language/second_test.js b/test/codegen/expect/language/second_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..39276c2ccfc3f30f580cad7d4ab68376a9b99a43
--- /dev/null
+++ b/test/codegen/expect/language/second_test.js
@@ -0,0 +1,41 @@
+dart_library.library('language/second_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__second_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const second_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  second_test.Helper = class Helper extends core.Object {
+    static empty() {}
+    static foo() {
+      return 42;
+    }
+  };
+  dart.setSignature(second_test.Helper, {
+    statics: () => ({
+      empty: dart.definiteFunctionType(dart.dynamic, []),
+      foo: dart.definiteFunctionType(core.int, [])
+    }),
+    names: ['empty', 'foo']
+  });
+  second_test.SecondTest = class SecondTest extends core.Object {
+    static testMain() {
+      second_test.Helper.empty();
+      expect$.Expect.equals(42, second_test.Helper.foo());
+    }
+  };
+  dart.setSignature(second_test.SecondTest, {
+    statics: () => ({testMain: dart.definiteFunctionType(dart.dynamic, [])}),
+    names: ['testMain']
+  });
+  second_test.main = function() {
+    second_test.SecondTest.testMain();
+  };
+  dart.fn(second_test.main, VoidTodynamic());
+  // Exports:
+  exports.second_test = second_test;
+});