Check in codegen test expectations.

test/codegen/expect/language/mixin_regress_11398_test.js

Index: test/codegen/expect/language/mixin_regress_11398_test.js
diff --git a/test/codegen/expect/language/mixin_regress_11398_test.js b/test/codegen/expect/language/mixin_regress_11398_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..b11e8fa7bbdc75042a62a62f4f1158833d91e44e
--- /dev/null
+++ b/test/codegen/expect/language/mixin_regress_11398_test.js
@@ -0,0 +1,69 @@
+dart_library.library('language/mixin_regress_11398_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__mixin_regress_11398_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 mixin_regress_11398_test = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  mixin_regress_11398_test.main = function() {
+    let hva = new mixin_regress_11398_test.HasValueA();
+    hva.value = '42';
+    expect$.Expect.equals('42', hva.value);
+    let hvb = new mixin_regress_11398_test.HasValueB();
+    hvb.value = '87';
+    expect$.Expect.equals('87', hvb.value);
+    let hvc = new mixin_regress_11398_test.HasValueC();
+    hvc.value = '99';
+    expect$.Expect.equals('99', hvc.value);
+  };
+  dart.fn(mixin_regress_11398_test.main, VoidTovoid());
+  mixin_regress_11398_test.Delegate = class Delegate extends core.Object {};
+  mixin_regress_11398_test.DelegateMixin = class DelegateMixin extends core.Object {
+    invoke(value) {
+      return value;
+    }
+  };
+  dart.setSignature(mixin_regress_11398_test.DelegateMixin, {
+    methods: () => ({invoke: dart.definiteFunctionType(core.String, [core.String])})
+  });
+  const _value = Symbol('_value');
+  mixin_regress_11398_test.HasValueMixin = class HasValueMixin extends core.Object {
+    new() {
+      this[_value] = null;
+    }
+    set value(value) {
+      this[_value] = this.invoke(value);
+    }
+    get value() {
+      return this[_value];
+    }
+  };
+  mixin_regress_11398_test.HasValueMixin[dart.implements] = () => [mixin_regress_11398_test.Delegate];
+  mixin_regress_11398_test.HasValueA = class HasValueA extends dart.mixin(core.Object, mixin_regress_11398_test.HasValueMixin, mixin_regress_11398_test.DelegateMixin) {
+    new() {
+      super.new();
+    }
+  };
+  mixin_regress_11398_test.HasValueB = class HasValueB extends dart.mixin(core.Object, mixin_regress_11398_test.DelegateMixin, mixin_regress_11398_test.HasValueMixin) {
+    new() {
+      super.new();
+    }
+  };
+  mixin_regress_11398_test.HasValueC = class HasValueC extends dart.mixin(core.Object, mixin_regress_11398_test.HasValueMixin) {
+    new() {
+      super.new();
+    }
+    invoke(value) {
+      return value;
+    }
+  };
+  dart.setSignature(mixin_regress_11398_test.HasValueC, {
+    methods: () => ({invoke: dart.definiteFunctionType(core.String, [core.String])})
+  });
+  // Exports:
+  exports.mixin_regress_11398_test = mixin_regress_11398_test;
+});