Check in codegen test expectations.

test/codegen/expect/language/deferred_shadow_load_library_test.js

Index: test/codegen/expect/language/deferred_shadow_load_library_test.js
diff --git a/test/codegen/expect/language/deferred_shadow_load_library_test.js b/test/codegen/expect/language/deferred_shadow_load_library_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..e8e294f7b32465f09d9484c18064a9bc37624061
--- /dev/null
+++ b/test/codegen/expect/language/deferred_shadow_load_library_test.js
@@ -0,0 +1,37 @@
+dart_library.library('language/deferred_shadow_load_library_test', null, /* Imports */[
+  'dart_sdk',
+  'expect',
+  'async_helper'
+], function load__deferred_shadow_load_library_test(exports, dart_sdk, expect, async_helper) {
+  'use strict';
+  const core = dart_sdk.core;
+  const async = dart_sdk.async;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const async_helper$ = async_helper.async_helper;
+  const deferred_shadow_load_library_test = Object.create(null);
+  const deferred_shadow_load_library_lib = Object.create(null);
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  deferred_shadow_load_library_test.main = function() {
+    let x = loadLibrary();
+    expect$.Expect.isTrue(async.Future.is(x));
+    async_helper$.asyncStart();
+    x.then(dart.dynamic)(dart.fn(_ => {
+      expect$.Expect.isTrue(deferred_shadow_load_library_lib.trueVar);
+      expect$.Expect.isTrue(async.Future.is(loadLibrary()));
+      async_helper$.asyncEnd();
+    }, dynamicTodynamic()));
+  };
+  dart.fn(deferred_shadow_load_library_test.main, VoidTovoid());
+  deferred_shadow_load_library_lib.loadLibrary = function() {
+    return 42;
+  };
+  dart.fn(deferred_shadow_load_library_lib.loadLibrary, VoidTodynamic());
+  deferred_shadow_load_library_lib.trueVar = true;
+  // Exports:
+  exports.deferred_shadow_load_library_test = deferred_shadow_load_library_test;
+  exports.deferred_shadow_load_library_lib = deferred_shadow_load_library_lib;
+});