Check in codegen test expectations.

test/codegen/expect/corelib/has_next_iterator_test.js

Index: test/codegen/expect/corelib/has_next_iterator_test.js
diff --git a/test/codegen/expect/corelib/has_next_iterator_test.js b/test/codegen/expect/corelib/has_next_iterator_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..73099616e55fdd029650460689a367d88619cc57
--- /dev/null
+++ b/test/codegen/expect/corelib/has_next_iterator_test.js
@@ -0,0 +1,46 @@
+dart_library.library('corelib/has_next_iterator_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__has_next_iterator_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const collection = dart_sdk.collection;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const has_next_iterator_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  has_next_iterator_test.main = function() {
+    let it = new collection.HasNextIterator([][dartx.iterator]);
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.throws(dart.fn(() => it.next(), VoidTovoid()), dart.fn(e => core.StateError.is(e), dynamicTobool()));
+    expect$.Expect.isFalse(it.hasNext);
+    it = new collection.HasNextIterator(JSArrayOfint().of([1])[dartx.iterator]);
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.equals(1, it.next());
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.throws(dart.fn(() => it.next(), VoidTovoid()), dart.fn(e => core.StateError.is(e), dynamicTobool()));
+    expect$.Expect.isFalse(it.hasNext);
+    it = new collection.HasNextIterator(JSArrayOfint().of([1, 2])[dartx.iterator]);
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.equals(1, it.next());
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.isTrue(it.hasNext);
+    expect$.Expect.equals(2, it.next());
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.isFalse(it.hasNext);
+    expect$.Expect.throws(dart.fn(() => it.next(), VoidTovoid()), dart.fn(e => core.StateError.is(e), dynamicTobool()));
+    expect$.Expect.isFalse(it.hasNext);
+  };
+  dart.fn(has_next_iterator_test.main, VoidTodynamic());
+  // Exports:
+  exports.has_next_iterator_test = has_next_iterator_test;
+});