Check in codegen test expectations.

test/codegen/expect/language/bind_test.js

+dart_library.library('language/bind_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__bind_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 bind_test = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  bind_test.Bound = class Bound extends core.Object {
+    run() {
+      return 42;
+    }
+  };
+  dart.setSignature(bind_test.Bound, {
+    methods: () => ({run: dart.definiteFunctionType(dart.dynamic, [])})
+  });
+  bind_test.main = function() {
+    let runner = dart.bind(new bind_test.Bound(), 'run');
+    expect$.Expect.equals(42, runner());
+  };
+  dart.fn(bind_test.main, VoidTovoid());
+  // Exports:
+  exports.bind_test = bind_test;
+});