Check in codegen test expectations.

test/codegen/expect/language/factory_test.js

Index: test/codegen/expect/language/factory_test.js
diff --git a/test/codegen/expect/language/factory_test.js b/test/codegen/expect/language/factory_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..c0a6e1fe93c5b2be658a4cadc465060a2c030446
--- /dev/null
+++ b/test/codegen/expect/language/factory_test.js
@@ -0,0 +1,60 @@
+dart_library.library('language/factory_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__factory_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 factory_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  factory_test.A = class A extends core.Object {
+    static new(n) {
+      return new factory_test.A.internal(n);
+    }
+    internal(n) {
+      this.n_ = n;
+    }
+  };
+  dart.defineNamedConstructor(factory_test.A, 'internal');
+  dart.setSignature(factory_test.A, {
+    constructors: () => ({
+      new: dart.definiteFunctionType(factory_test.A, [dart.dynamic]),
+      internal: dart.definiteFunctionType(factory_test.A, [dart.dynamic])
+    })
+  });
+  factory_test.B = class B extends core.Object {
+    static my() {
+      return new factory_test.B(3);
+    }
+    new(n) {
+      this.n_ = n;
+    }
+  };
+  dart.setSignature(factory_test.B, {
+    constructors: () => ({
+      my: dart.definiteFunctionType(factory_test.B, []),
+      new: dart.definiteFunctionType(factory_test.B, [dart.dynamic])
+    })
+  });
+  factory_test.FactoryTest = class FactoryTest extends core.Object {
+    static testMain() {
+      factory_test.B.my();
+      let b = factory_test.B.my();
+      expect$.Expect.equals(3, b.n_);
+      let a = factory_test.A.new(5);
+      expect$.Expect.equals(5, a.n_);
+    }
+  };
+  dart.setSignature(factory_test.FactoryTest, {
+    statics: () => ({testMain: dart.definiteFunctionType(dart.dynamic, [])}),
+    names: ['testMain']
+  });
+  factory_test.main = function() {
+    factory_test.FactoryTest.testMain();
+  };
+  dart.fn(factory_test.main, VoidTodynamic());
+  // Exports:
+  exports.factory_test = factory_test;
+});