Check in codegen test expectations.

test/codegen/expect/language/generic_object_type_test.js

Index: test/codegen/expect/language/generic_object_type_test.js
diff --git a/test/codegen/expect/language/generic_object_type_test.js b/test/codegen/expect/language/generic_object_type_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ba2f0464b6a6107c02073d7e541afb8828ae6e53
--- /dev/null
+++ b/test/codegen/expect/language/generic_object_type_test.js
@@ -0,0 +1,33 @@
+dart_library.library('language/generic_object_type_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__generic_object_type_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 generic_object_type_test = Object.create(null);
+  let Tester = () => (Tester = dart.constFn(generic_object_type_test.Tester$()))();
+  let TesterOfObject = () => (TesterOfObject = dart.constFn(generic_object_type_test.Tester$(core.Object)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  generic_object_type_test.Tester$ = dart.generic(T => {
+    class Tester extends core.Object {
+      testGenericType(x) {
+        return T.is(x);
+      }
+    }
+    dart.addTypeTests(Tester);
+    dart.setSignature(Tester, {
+      methods: () => ({testGenericType: dart.definiteFunctionType(dart.dynamic, [dart.dynamic])})
+    });
+    return Tester;
+  });
+  generic_object_type_test.Tester = Tester();
+  generic_object_type_test.main = function() {
+    expect$.Expect.isTrue(new (TesterOfObject())().testGenericType(new core.Object()));
+  };
+  dart.fn(generic_object_type_test.main, VoidTodynamic());
+  // Exports:
+  exports.generic_object_type_test = generic_object_type_test;
+});