Check in codegen test expectations.

test/codegen/expect/language/super_in_async4_test.js

Index: test/codegen/expect/language/super_in_async4_test.js
diff --git a/test/codegen/expect/language/super_in_async4_test.js b/test/codegen/expect/language/super_in_async4_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..b46b5b0530d4a81b94d4327eff53839ae472943e
--- /dev/null
+++ b/test/codegen/expect/language/super_in_async4_test.js
@@ -0,0 +1,49 @@
+dart_library.library('language/super_in_async4_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__super_in_async4_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const async = dart_sdk.async;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const super_in_async4_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  super_in_async4_test.A = class A extends core.Object {
+    foo(T) {
+      return opts => {
+        return dart.async(function*(opts) {
+          let x = opts && 'x' in opts ? opts.x : null;
+          return x;
+        }, T, opts);
+      };
+    }
+  };
+  dart.setSignature(super_in_async4_test.A, {
+    methods: () => ({foo: dart.definiteFunctionType(T => [async.Future$(T), [], {x: T}])})
+  });
+  const super$foo = Symbol("super$foo");
+  super_in_async4_test.B = class B extends super_in_async4_test.A {
+    bar() {
+      return dart.async((function*() {
+        let x = (yield this[super$foo](core.int, {x: 41}));
+        return dart.notNull(x) + 1;
+      }).bind(this), core.int);
+    }
+    [super$foo](a, a$) {
+      return super.foo(a)(a$);
+    }
+  };
+  dart.setSignature(super_in_async4_test.B, {
+    methods: () => ({bar: dart.definiteFunctionType(async.Future$(core.int), [])})
+  });
+  super_in_async4_test.main = function() {
+    return dart.async(function*() {
+      expect$.Expect.equals(42, yield new super_in_async4_test.B().bar());
+    }, dart.dynamic);
+  };
+  dart.fn(super_in_async4_test.main, VoidTodynamic());
+  // Exports:
+  exports.super_in_async4_test = super_in_async4_test;
+});