Check in codegen test expectations.

test/codegen/expect/corelib/map_values4_test.js

Index: test/codegen/expect/corelib/map_values4_test.js
diff --git a/test/codegen/expect/corelib/map_values4_test.js b/test/codegen/expect/corelib/map_values4_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..bd55fc207047ae697a195b66f94e9f66b8b8cdc2
--- /dev/null
+++ b/test/codegen/expect/corelib/map_values4_test.js
@@ -0,0 +1,22 @@
+dart_library.library('corelib/map_values4_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__map_values4_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 map_values4_test = Object.create(null);
+  let IterableOfString = () => (IterableOfString = dart.constFn(core.Iterable$(core.String)))();
+  let IterableOfbool = () => (IterableOfbool = dart.constFn(core.Iterable$(core.bool)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  map_values4_test.main = function() {
+    let map1 = dart.map([1, "42", 2, "499"], core.int, core.String);
+    expect$.Expect.isTrue(IterableOfString().is(map1[dartx.values]));
+    expect$.Expect.isFalse(IterableOfbool().is(map1[dartx.values]));
+  };
+  dart.fn(map_values4_test.main, VoidTodynamic());
+  // Exports:
+  exports.map_values4_test = map_values4_test;
+});