Check in codegen test expectations.

test/codegen/expect/language/generic_is_check_test.js

Index: test/codegen/expect/language/generic_is_check_test.js
diff --git a/test/codegen/expect/language/generic_is_check_test.js b/test/codegen/expect/language/generic_is_check_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..529c7f497a90b7475514ae3949499493d9612c3c
--- /dev/null
+++ b/test/codegen/expect/language/generic_is_check_test.js
@@ -0,0 +1,36 @@
+dart_library.library('language/generic_is_check_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__generic_is_check_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_is_check_test = Object.create(null);
+  let AOfint = () => (AOfint = dart.constFn(generic_is_check_test.A$(core.int)))();
+  let A = () => (A = dart.constFn(generic_is_check_test.A$()))();
+  let AOfString = () => (AOfString = dart.constFn(generic_is_check_test.A$(core.String)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  generic_is_check_test.A$ = dart.generic(T => {
+    class A extends core.Object {
+      foo() {
+        return AOfint().is(this);
+      }
+    }
+    dart.addTypeTests(A);
+    dart.setSignature(A, {
+      methods: () => ({foo: dart.definiteFunctionType(dart.dynamic, [])})
+    });
+    return A;
+  });
+  generic_is_check_test.A = A();
+  generic_is_check_test.main = function() {
+    expect$.Expect.isTrue(new generic_is_check_test.A().foo());
+    expect$.Expect.isTrue(new (AOfint())().foo());
+    expect$.Expect.isFalse(new (AOfString())().foo());
+  };
+  dart.fn(generic_is_check_test.main, VoidTodynamic());
+  // Exports:
+  exports.generic_is_check_test = generic_is_check_test;
+});