Check in codegen test expectations.

test/codegen/expect/corelib/for_in_test.js

Index: test/codegen/expect/corelib/for_in_test.js
diff --git a/test/codegen/expect/corelib/for_in_test.js b/test/codegen/expect/corelib/for_in_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..9352ff58f66c0de8e5dede1ccaf2f8c6c58f09ae
--- /dev/null
+++ b/test/codegen/expect/corelib/for_in_test.js
@@ -0,0 +1,107 @@
+dart_library.library('corelib/for_in_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__for_in_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 for_in_test = Object.create(null);
+  let SetOfint = () => (SetOfint = dart.constFn(core.Set$(core.int)))();
+  let ListOfFunction = () => (ListOfFunction = dart.constFn(core.List$(core.Function)))();
+  let VoidToint = () => (VoidToint = dart.constFn(dart.definiteFunctionType(core.int, [])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  for_in_test.ForInTest = class ForInTest extends core.Object {
+    static testMain() {
+      for_in_test.ForInTest.testSimple();
+      for_in_test.ForInTest.testBreak();
+      for_in_test.ForInTest.testContinue();
+      for_in_test.ForInTest.testClosure();
+    }
+    static getSmallSet() {
+      let set = SetOfint().new();
+      set.add(1);
+      set.add(2);
+      set.add(4);
+      return set;
+    }
+    static testSimple() {
+      let set = for_in_test.ForInTest.getSmallSet();
+      let count = 0;
+      for (let i of set) {
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(7, count);
+      count = 0;
+      for (let i of set) {
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(7, count);
+      count = 0;
+      for (let i of set) {
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(7, count);
+      count = 0;
+      for (let i of set) {
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(7, count);
+      count = 0;
+      let i = 0;
+      expect$.Expect.equals(false, set.contains(i));
+      for (i of set) {
+        count = count + i;
+      }
+      expect$.Expect.equals(7, count);
+      expect$.Expect.equals(true, set.contains(i));
+      expect$.Expect.equals(4, i);
+    }
+    static testBreak() {
+      let set = for_in_test.ForInTest.getSmallSet();
+      let count = 0;
+      for (let i of set) {
+        if (i == 4) break;
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(true, count < 4);
+    }
+    static testContinue() {
+      let set = for_in_test.ForInTest.getSmallSet();
+      let count = 0;
+      for (let i of set) {
+        if (dart.notNull(i) < 4) continue;
+        count = count + dart.notNull(i);
+      }
+      expect$.Expect.equals(4, count);
+    }
+    static testClosure() {
+      let set = for_in_test.ForInTest.getSmallSet();
+      let closures = ListOfFunction().new(set.length);
+      let index = 0;
+      for (let i of set) {
+        closures[dartx.set](index++, dart.fn(() => i, VoidToint()));
+      }
+      expect$.Expect.equals(index, set.length);
+      expect$.Expect.equals(7, dart.dsend(dart.dsend(dart.dcall(closures[dartx.get](0)), '+', dart.dcall(closures[dartx.get](1))), '+', dart.dcall(closures[dartx.get](2))));
+    }
+  };
+  dart.setSignature(for_in_test.ForInTest, {
+    statics: () => ({
+      testMain: dart.definiteFunctionType(dart.dynamic, []),
+      getSmallSet: dart.definiteFunctionType(core.Set$(core.int), []),
+      testSimple: dart.definiteFunctionType(dart.void, []),
+      testBreak: dart.definiteFunctionType(dart.void, []),
+      testContinue: dart.definiteFunctionType(dart.void, []),
+      testClosure: dart.definiteFunctionType(dart.void, [])
+    }),
+    names: ['testMain', 'getSmallSet', 'testSimple', 'testBreak', 'testContinue', 'testClosure']
+  });
+  for_in_test.main = function() {
+    for_in_test.ForInTest.testMain();
+  };
+  dart.fn(for_in_test.main, VoidTodynamic());
+  // Exports:
+  exports.for_in_test = for_in_test;
+});