Check in codegen test expectations.

test/codegen/expect/language/super_operator_index4_test.js

Index: test/codegen/expect/language/super_operator_index4_test.js
diff --git a/test/codegen/expect/language/super_operator_index4_test.js b/test/codegen/expect/language/super_operator_index4_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..4ea111f411d824999de1017d9c29df38bd2ba025
--- /dev/null
+++ b/test/codegen/expect/language/super_operator_index4_test.js
@@ -0,0 +1,74 @@
+dart_library.library('language/super_operator_index4_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__super_operator_index4_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 super_operator_index4_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  super_operator_index4_test.A = class A extends core.Object {
+    new() {
+      this.indexField = core.List.new(2);
+    }
+    get(index) {
+      return this.indexField[dartx.get](core.int._check(index));
+    }
+  };
+  dart.setSignature(super_operator_index4_test.A, {
+    methods: () => ({get: dart.definiteFunctionType(dart.dynamic, [dart.dynamic])})
+  });
+  super_operator_index4_test.B = class B extends super_operator_index4_test.A {
+    new() {
+      super.new();
+    }
+    set(index, value) {
+      this.indexField[dartx.set](core.int._check(index), value);
+      return value;
+    }
+  };
+  dart.setSignature(super_operator_index4_test.B, {
+    methods: () => ({set: dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])})
+  });
+  super_operator_index4_test.C = class C extends super_operator_index4_test.B {
+    test() {
+      expect$.Expect.equals(42, super.set(0, 42));
+      expect$.Expect.equals(42, super.get(0));
+      expect$.Expect.equals(43, (() => {
+        let i = 0;
+        return super.set(i, dart.dsend(super.get(i), '+', 1));
+      })());
+      expect$.Expect.equals(43, super.get(0));
+      expect$.Expect.equals(43, (() => {
+        let i = 0, x = super.get(i);
+        super.set(i, dart.dsend(x, '+', 1));
+        return x;
+      })());
+      expect$.Expect.equals(44, super.get(0));
+      expect$.Expect.equals(2, super.set(0, 2));
+      expect$.Expect.equals(2, super.get(0));
+      expect$.Expect.equals(3, (() => {
+        let i = 0;
+        return super.set(i, dart.dsend(super.get(i), '+', 1));
+      })());
+      expect$.Expect.equals(3, super.get(0));
+      expect$.Expect.equals(3, (() => {
+        let i = 0, x = super.get(i);
+        super.set(i, dart.dsend(x, '+', 1));
+        return x;
+      })());
+      expect$.Expect.equals(4, super.get(0));
+    }
+  };
+  dart.setSignature(super_operator_index4_test.C, {
+    methods: () => ({test: dart.definiteFunctionType(dart.dynamic, [])})
+  });
+  super_operator_index4_test.main = function() {
+    new super_operator_index4_test.C().test();
+  };
+  dart.fn(super_operator_index4_test.main, VoidTodynamic());
+  // Exports:
+  exports.super_operator_index4_test = super_operator_index4_test;
+});