Check in codegen test expectations.

test/codegen/expect/language/licm2_test.js

Index: test/codegen/expect/language/licm2_test.js
diff --git a/test/codegen/expect/language/licm2_test.js b/test/codegen/expect/language/licm2_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..9ecd31429b0b0cf5ac5244bc05b7d60152f0a84f
--- /dev/null
+++ b/test/codegen/expect/language/licm2_test.js
@@ -0,0 +1,28 @@
+dart_library.library('language/licm2_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__licm2_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 licm2_test = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  licm2_test.a = 42;
+  licm2_test.b = null;
+  licm2_test.main = function() {
+    expect$.Expect.throws(dart.fn(() => {
+      while (true) {
+        licm2_test.a = 54;
+        dart.dload(licm2_test.b, 'length');
+      }
+    }, VoidTovoid()));
+    licm2_test.b = [];
+    expect$.Expect.equals(54, licm2_test.a);
+  };
+  dart.fn(licm2_test.main, VoidTodynamic());
+  // Exports:
+  exports.licm2_test = licm2_test;
+});