Check in codegen test expectations.

test/codegen/expect/corelib/unicode2_test.js

Index: test/codegen/expect/corelib/unicode2_test.js
diff --git a/test/codegen/expect/corelib/unicode2_test.js b/test/codegen/expect/corelib/unicode2_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ef7c4ff7ec5d9d17b3e410edf776acae92c988db
--- /dev/null
+++ b/test/codegen/expect/corelib/unicode2_test.js
@@ -0,0 +1,42 @@
+dart_library.library('corelib/unicode2_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__unicode2_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const unicode2_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  unicode2_test.testPhrase = "The quick brown fox jumps over the lazy dog.";
+  unicode2_test.testCodepoints = dart.constList([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103, 46], core.int);
+  unicode2_test.main = function() {
+    unicode2_test.testCodepointsToString();
+    unicode2_test.testStringCharCodes();
+    unicode2_test.testEmptyStringFromCharCodes();
+    unicode2_test.testEmptyStringCharCodes();
+  };
+  dart.fn(unicode2_test.main, VoidTodynamic());
+  unicode2_test.testStringCharCodes = function() {
+    expect$.Expect.listEquals(unicode2_test.testCodepoints, unicode2_test.testPhrase[dartx.codeUnits]);
+  };
+  dart.fn(unicode2_test.testStringCharCodes, VoidTovoid());
+  unicode2_test.testCodepointsToString = function() {
+    expect$.Expect.stringEquals(unicode2_test.testPhrase, core.String.fromCharCodes(unicode2_test.testCodepoints));
+  };
+  dart.fn(unicode2_test.testCodepointsToString, VoidTovoid());
+  unicode2_test.testEmptyStringFromCharCodes = function() {
+    expect$.Expect.stringEquals("", core.String.fromCharCodes(JSArrayOfint().of([])));
+  };
+  dart.fn(unicode2_test.testEmptyStringFromCharCodes, VoidTovoid());
+  unicode2_test.testEmptyStringCharCodes = function() {
+    expect$.Expect.listEquals([], ""[dartx.codeUnits]);
+  };
+  dart.fn(unicode2_test.testEmptyStringCharCodes, VoidTovoid());
+  // Exports:
+  exports.unicode2_test = unicode2_test;
+});