Check in codegen test expectations.

test/codegen/expect/language/unicode_hash_test.js

Index: test/codegen/expect/language/unicode_hash_test.js
diff --git a/test/codegen/expect/language/unicode_hash_test.js b/test/codegen/expect/language/unicode_hash_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..d254044b8e8dd223bcd568c5f7682e2ffda6b34f
--- /dev/null
+++ b/test/codegen/expect/language/unicode_hash_test.js
@@ -0,0 +1,19 @@
+dart_library.library('language/unicode_hash_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__unicode_hash_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 unicode_hash_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  unicode_hash_test.main = function() {
+    expect$.Expect.equals("𐐒", "𐐒");
+    expect$.Expect.equals(dart.hashCode("𐐒"), dart.hashCode("𐐒"));
+  };
+  dart.fn(unicode_hash_test.main, VoidTodynamic());
+  // Exports:
+  exports.unicode_hash_test = unicode_hash_test;
+});