Check in codegen test expectations.

test/codegen/expect/corelib/date_time7_test.js

Index: test/codegen/expect/corelib/date_time7_test.js
diff --git a/test/codegen/expect/corelib/date_time7_test.js b/test/codegen/expect/corelib/date_time7_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..1beac51fee38091493c0b0521d683bfd5b7b2b6e
--- /dev/null
+++ b/test/codegen/expect/corelib/date_time7_test.js
@@ -0,0 +1,51 @@
+dart_library.library('corelib/date_time7_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__date_time7_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 date_time7_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let StringAndDurationTodynamic = () => (StringAndDurationTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, core.Duration])))();
+  date_time7_test.testUtc = function() {
+    let d = core.DateTime.parse("2012-03-04T03:25:38.123Z");
+    expect$.Expect.equals("UTC", d.timeZoneName);
+    expect$.Expect.equals(0, d.timeZoneOffset.inSeconds);
+  };
+  dart.fn(date_time7_test.testUtc, VoidTodynamic());
+  date_time7_test.testLocal = function() {
+    function checkOffset(name, offset) {
+      if (name == "CET") {
+        expect$.Expect.equals(1, offset.inHours);
+      } else if (name == "CEST") {
+        expect$.Expect.equals(2, offset.inHours);
+      } else if (name == "GMT") {
+        expect$.Expect.equals(0, offset.inSeconds);
+      } else if (name == "EST") {
+        expect$.Expect.equals(-5, offset.inHours);
+      } else if (name == "EDT") {
+        expect$.Expect.equals(-4, offset.inHours);
+      } else if (name == "PDT") {
+        expect$.Expect.equals(-7, offset.inHours);
+      }
+    }
+    dart.fn(checkOffset, StringAndDurationTodynamic());
+    let d = core.DateTime.parse("2012-01-02T13:45:23");
+    let name = d.timeZoneName;
+    checkOffset(name, d.timeZoneOffset);
+    d = core.DateTime.parse("2012-07-02T13:45:23");
+    name = d.timeZoneName;
+    checkOffset(name, d.timeZoneOffset);
+  };
+  dart.fn(date_time7_test.testLocal, VoidTodynamic());
+  date_time7_test.main = function() {
+    date_time7_test.testUtc();
+    date_time7_test.testLocal();
+  };
+  dart.fn(date_time7_test.main, VoidTodynamic());
+  // Exports:
+  exports.date_time7_test = date_time7_test;
+});