Check in codegen test expectations.

test/codegen/expect/language/abstract_object_method_test.js

+dart_library.library('language/abstract_object_method_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__abstract_object_method_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 abstract_object_method_test = Object.create(null);
+  let JSArrayOfC = () => (JSArrayOfC = dart.constFn(_interceptors.JSArray$(abstract_object_method_test.C)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  abstract_object_method_test.A = dart.callableClass(function A(...args) {
+    const self = this;
+    function call(...args) {
+      return self.call.apply(self, args);
+    }
+    call.__proto__ = this.__proto__;
+    call.new.apply(call, args);
+    return call;
+  }, class A extends core.Object {
+    noSuchMethod(_) {
+      expect$.Expect.fail('Should not reach here');
+    }
+  });
+  abstract_object_method_test.B = class B extends abstract_object_method_test.A {};
+  abstract_object_method_test.C = class C extends abstract_object_method_test.B {};
+  dart.defineLazy(abstract_object_method_test, {
+    get a() {
+      return JSArrayOfC().of([new abstract_object_method_test.C()]);
+    },
+    set a(_) {}
+  });
+  abstract_object_method_test.main = function() {
+    let c = abstract_object_method_test.a[dartx.get](0);
+    abstract_object_method_test.a[dartx.add](c);
+    expect$.Expect.isTrue(dart.equals(c, abstract_object_method_test.a[dartx.get](1)));
+  };
+  dart.fn(abstract_object_method_test.main, VoidTodynamic());
+  // Exports:
+  exports.abstract_object_method_test = abstract_object_method_test;
+});