Check in codegen test expectations.

test/codegen/expect/language/dynamic_field_test_none_multi.js

Index: test/codegen/expect/language/dynamic_field_test_none_multi.js
diff --git a/test/codegen/expect/language/dynamic_field_test_none_multi.js b/test/codegen/expect/language/dynamic_field_test_none_multi.js
new file mode 100644
index 0000000000000000000000000000000000000000..b6e4bbc9cd4fe8d4554d0bfcdb8ccda6614e1b39
--- /dev/null
+++ b/test/codegen/expect/language/dynamic_field_test_none_multi.js
@@ -0,0 +1,34 @@
+dart_library.library('language/dynamic_field_test_none_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__dynamic_field_test_none_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const dynamic_field_test_none_multi = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  dynamic_field_test_none_multi.C = class C extends core.Object {
+    foo() {}
+    bar() {}
+  };
+  dart.setSignature(dynamic_field_test_none_multi.C, {
+    methods: () => ({
+      foo: dart.definiteFunctionType(dart.dynamic, []),
+      bar: dart.definiteFunctionType(dart.dynamic, [])
+    })
+  });
+  dynamic_field_test_none_multi.A = class A extends dynamic_field_test_none_multi.C {
+    new() {
+      this.a = null;
+      this.b = null;
+    }
+  };
+  dynamic_field_test_none_multi.main = function() {
+    let a = new dynamic_field_test_none_multi.A();
+    a.a = 1;
+    a.b = a;
+  };
+  dart.fn(dynamic_field_test_none_multi.main, VoidTodynamic());
+  // Exports:
+  exports.dynamic_field_test_none_multi = dynamic_field_test_none_multi;
+});