Check in codegen test expectations.

test/codegen/expect/corelib/list_iterators_test.js

Index: test/codegen/expect/corelib/list_iterators_test.js
diff --git a/test/codegen/expect/corelib/list_iterators_test.js b/test/codegen/expect/corelib/list_iterators_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..54c70561e4df8f48e30b41992cf54dafd0cbd63a
--- /dev/null
+++ b/test/codegen/expect/corelib/list_iterators_test.js
@@ -0,0 +1,62 @@
+dart_library.library('corelib/list_iterators_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__list_iterators_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 list_iterators_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  list_iterators_test.ListIteratorsTest = class ListIteratorsTest extends core.Object {
+    static checkListIterator(a) {
+      let it = a[dartx.iterator];
+      expect$.Expect.isNull(it.current);
+      for (let i = 0; i < dart.notNull(a[dartx.length]); i++) {
+        expect$.Expect.isTrue(it.moveNext());
+        let elem = it.current;
+        expect$.Expect.equals(a[dartx.get](i), elem);
+      }
+      expect$.Expect.isFalse(it.moveNext());
+      expect$.Expect.isNull(it.current);
+    }
+    static testMain() {
+      list_iterators_test.ListIteratorsTest.checkListIterator([]);
+      list_iterators_test.ListIteratorsTest.checkListIterator(JSArrayOfint().of([1, 2]));
+      list_iterators_test.ListIteratorsTest.checkListIterator(core.List.new(0));
+      list_iterators_test.ListIteratorsTest.checkListIterator(core.List.new(10));
+      list_iterators_test.ListIteratorsTest.checkListIterator(core.List.new());
+      let g = core.List.new();
+      g[dartx.addAll](JSArrayOfint().of([1, 2, 3]));
+      list_iterators_test.ListIteratorsTest.checkListIterator(g);
+      let it = g[dartx.iterator];
+      expect$.Expect.isTrue(it.moveNext());
+      expect$.Expect.equals(1, it.current);
+      expect$.Expect.isTrue(it.moveNext());
+      g[dartx.set](1, 49);
+      expect$.Expect.equals(2, it.current);
+      expect$.Expect.isTrue(it.moveNext());
+      g[dartx.removeLast]();
+      expect$.Expect.equals(3, it.current);
+      expect$.Expect.throws(dart.bind(it, 'moveNext'), dart.fn(e => core.ConcurrentModificationError.is(e), dynamicTobool()));
+      expect$.Expect.equals(3, it.current);
+    }
+  };
+  dart.setSignature(list_iterators_test.ListIteratorsTest, {
+    statics: () => ({
+      checkListIterator: dart.definiteFunctionType(dart.void, [core.List]),
+      testMain: dart.definiteFunctionType(dart.dynamic, [])
+    }),
+    names: ['checkListIterator', 'testMain']
+  });
+  list_iterators_test.main = function() {
+    list_iterators_test.ListIteratorsTest.testMain();
+  };
+  dart.fn(list_iterators_test.main, VoidTodynamic());
+  // Exports:
+  exports.list_iterators_test = list_iterators_test;
+});