Check in codegen test expectations.

test/codegen/expect/language/sync_generator2_test_none_multi.js

+dart_library.library('language/sync_generator2_test_none_multi', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__sync_generator2_test_none_multi(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const async = dart_sdk.async;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const sync_generator2_test_none_multi = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  sync_generator2_test_none_multi.sync = "topLevelSync";
+  sync_generator2_test_none_multi.async = "topLevelAync";
+  sync_generator2_test_none_multi.await = "topLevelAwait";
+  sync_generator2_test_none_multi.yield = "topLevelYield";
+  sync_generator2_test_none_multi.test01 = function() {
+    return dart.syncStar(function*() {
+      let x1 = sync_generator2_test_none_multi.sync;
+      let stream = async.Stream.fromIterable(JSArrayOfint().of([1, 2, 3]));
+    }, dart.dynamic);
+  };
+  dart.fn(sync_generator2_test_none_multi.test01, VoidTodynamic());
+  sync_generator2_test_none_multi.test02 = function() {
+    return dart.syncStar(function*() {
+      yield 12321;
+    }, dart.dynamic);
+  };
+  dart.fn(sync_generator2_test_none_multi.test02, VoidTodynamic());
+  sync_generator2_test_none_multi.K = class K extends core.Object {
+    get nix() {
+      return dart.syncStar(function*() {
+      }, dart.dynamic);
+    }
+    sync() {
+      return dart.syncStar((function*() {
+        yield dart.bind(this, 'sync');
+      }).bind(this), dart.dynamic);
+    }
+  };
+  dart.setSignature(sync_generator2_test_none_multi.K, {
+    methods: () => ({sync: dart.definiteFunctionType(dart.dynamic, [])})
+  });
+  sync_generator2_test_none_multi.main = function() {
+    let x = null;
+    x = sync_generator2_test_none_multi.test01();
+    expect$.Expect.equals("()", dart.toString(x));
+    x = sync_generator2_test_none_multi.test02();
+    expect$.Expect.equals("(12321)", dart.toString(x));
+    x = new sync_generator2_test_none_multi.K();
+    core.print(dart.dsend(dart.dsend(x, 'sync'), 'toList'));
+    expect$.Expect.equals(1, dart.dload(dart.dsend(x, 'sync'), 'length'));
+  };
+  dart.fn(sync_generator2_test_none_multi.main, VoidTodynamic());
+  // Exports:
+  exports.sync_generator2_test_none_multi = sync_generator2_test_none_multi;
+});