Check in codegen test expectations.

test/codegen/expect/language/cyclic_metadata_test_02_multi.js

+dart_library.library('language/cyclic_metadata_test_02_multi', null, /* Imports */[
+  'dart_sdk'
+], function load__cyclic_metadata_test_02_multi(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const cyclic_metadata_test_02_multi = Object.create(null);
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  cyclic_metadata_test_02_multi.Super = class Super extends core.Object {
+    new(field) {
+      this.field = field;
+    }
+  };
+  dart.setSignature(cyclic_metadata_test_02_multi.Super, {
+    constructors: () => ({new: dart.definiteFunctionType(cyclic_metadata_test_02_multi.Super, [dart.dynamic])})
+  });
+  cyclic_metadata_test_02_multi.Sub1 = class Sub1 extends cyclic_metadata_test_02_multi.Super {
+    new(field) {
+      super.new(field);
+    }
+  };
+  dart.setSignature(cyclic_metadata_test_02_multi.Sub1, {
+    constructors: () => ({new: dart.definiteFunctionType(cyclic_metadata_test_02_multi.Sub1, [dart.dynamic])})
+  });
+  cyclic_metadata_test_02_multi.Sub2 = class Sub2 extends cyclic_metadata_test_02_multi.Super {
+    new(field) {
+      super.new(field);
+    }
+  };
+  dart.setSignature(cyclic_metadata_test_02_multi.Sub2, {
+    constructors: () => ({new: dart.definiteFunctionType(cyclic_metadata_test_02_multi.Sub2, [dart.dynamic])})
+  });
+  cyclic_metadata_test_02_multi.main = function() {
+    core.print(new cyclic_metadata_test_02_multi.Super(1));
+  };
+  dart.fn(cyclic_metadata_test_02_multi.main, VoidTovoid());
+  // Exports:
+  exports.cyclic_metadata_test_02_multi = cyclic_metadata_test_02_multi;
+});